determine the formula weight of ca(no₃)₂. provide an answer to two decimal places.

Answers

Answer 1

The formula weight of  \(Ca(NO_3)_2\)  is equal to 136.02 g/mol.

The formula weight of a chemical compound is calculated by adding the atomic masses of each chemical element contained in the compound, while multiplying them by the number of atoms respectively.

From the periodic table, the atomic mass of each chemical element is:

Carbon = 12.0107 uNitrogen = 14.0067 uOxygen = 15.999 u

Formula weight of \(Ca(NO_3)_2\) = \(12.0107 + [14.0067+ (15.999 \times3)]\times 2\)

\(F = 12.0107 + [14.0067+ 47.997] \times 2\\\\F = 12.0107 + 124.0074\)

F = 136.02 g/mol.

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Related Questions

When testing gas pumps for​ accuracy, fuel-quality enforcement specialists tested pumps and found that of them were not pumping accurately​ (within 3. 3 oz when 5 gal is​ pumped), and pumps were accurate. Use a 0. 01 significance level to test the claim of an industry representative that less than​ 20% of the pumps are inaccurate. Use the​ p-value method and use the normal distribution as an approximation to the binomial distribution.

Answers

The test statistic is 0.20.

The critical value is 0.2.

The p-value is 0.038.

Since the p-value is less than the alpha level of 0.01, we reject the null hypothesis and conclude that less than 20% of the pumps are inaccurate.

What is Hypothesis
Hypothesis is an educated guess or proposed explanation made on the basis of limited evidence as a starting point for further investigation. It is an important part of the scientific method, where a hypothesis is developed through the use of scientific inquiry and experimentation. A hypothesis is usually based on prior knowledge or observation and is tested to determine its validity. By testing a hypothesis, scientists can either reject or accept it, which in turn leads to the development of a theory. Hypotheses are essential in advancing scientific knowledge, as they lead to further research and help scientists to think critically about the world around them.

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Write a narrative on falling asleep on your way home and getting lost make sure to include what happened and how you eventually got home.

Answers

As I got into my car after a long day at work, I felt the exhaustion hit me like a ton of bricks. The drive home was only supposed to take 20 minutes, but my heavy eyelids made the trip feel like an eternity. I tried my best to keep my focus on the road, but it was a losing battle.

I remember struggling to keep my eyes open, and then everything went black. When I opened my eyes again, I was no longer on the familiar streets of my neighborhood. Panic set in as I realized I had fallen asleep at the wheel and must have taken a wrong turn.

My phone's battery was dead, and I had no idea where I was or how to get back home. I drove around aimlessly, hoping to recognize a street name or landmark, but everything looked unfamiliar.

After what seemed like hours, I stumbled upon a gas station and asked for directions. The attendant gave me a puzzled look, probably wondering how I got so lost, but kindly guided me back on track.

Finally, I saw the familiar streets and landmarks, and the relief that washed over me was indescribable. I made it home, safe and sound, but shaken by the experience.

From that day on, I vowed to never drive when overly tired and to always have a fully charged phone for emergencies. It was a wake-up call that reminded me of the importance of road safety and being alert behind the wheel.

Alright everyone. I have to take the PSAT and I'm a bit nervous. I'm not even supposed to take them in the eight grade so I'm even more nervous. How should i calm my nerves?

Answers

Answer:

HI i took the psat 2 days ago, and do not stress at all, I had stressed so much before I took it, but really, it nothing to stress about, this is a practice test, so when you take the SAT in the near future, you know what specific things you need to work on all along, just remeber all along the test that this is a PRACTICE test, so really there no need to stress, make sure you get a good night sleep and eat food before you go take it:)

Im a junior in high school and 3 days ago i took my PSAT i believe as you get older you find ways that work best for YOU to cope with testing anxiety, but one way to calm your nerves is to realize that the PSAT is only a practice test

Read these excerpts from News Articles about Bullying. As a child diagnosed with Tourette's syndrome, Asperger's syndrome, and obsessive compulsive disorder, Jaylen Arnold has experienced bullying. Jaylen has Tourette syndrome. That's a condition that causes a person to make involuntary noises and movements. . . . And the bullies noticed. Which detail in the first text is explained in the second text? what children said to Jaylen what causes Tourette's syndrome when Jaylen was diagnosed with medical issues what people with Tourette's syndrome do

Answers

Answer: To find out more about what actually happened to Jaylen, you can go to his site at Jaylens Challenge.

Explanation:

We have also placed a video on You tube called "My life with Tourettes" to show what happened to him after the bullying began. It's under the channel, Jaylens Challenge.

If a committee has 7 members? Find the probability of having more female members than the male members given that the probability of having a male or female member is equal

Answers

Answer:

Let's assume that the probability of having a male or female member is 0.5 or 50%.

There are different ways to approach this problem, but one possible method is to use the binomial distribution.

First, let's calculate the probability of having exactly 3 females, which is the midpoint between 0 and 7 females.

P(3 females) = (7 choose 3) * 0.5^7 = 0.2734

This means that there is a 27.34% chance of having exactly 3 females in the committee.

Next, let's calculate the probability of having 4, 5, 6, or 7 females, which would satisfy the condition of having more females than males.

P(4 or more females) = P(4 females) + P(5 females) + P(6 females) + P(7 females)

P(4 females) = (7 choose 4) * 0.5^7 = 0.2734

P(5 females) = (7 choose 5) * 0.5^7 = 0.1641

P(6 females) = (7 choose 6) * 0.5^7 = 0.0547

P(7 females) = (7 choose 7) * 0.5^7 = 0.0078

Therefore,

P(4 or more females) = 0.2734 + 0.1641 + 0.0547 + 0.0078 = 0.5

This means that there is a 50% chance of having more females than males in the committee, given that the probability of having a male or female member is equal.

What is a citizen journalist?
A. A professional newsperson who has been trained in the craft of
reporting news
B. An undercover journalist who reports on conflicts while traveling
with the military
C. An amateur photographer who enjoys taking photos of nature and
animals
D. A person who happens to witness a news event and takes pictures
or writes about it

Answers

Answer:

D. A person who happens to witness a news event and takes pictures or writes about it

Explanation:

Citizen journalists can be described as regular people who will report on something they themselves have witnessed, with no prior journalism experience.

what are two cryptocurrencies and explain what they are in 250 words each

Answers

Answer:

Bitcoin

Ethereum

Explanation:

A digital coin is created on its own blockchain and acts in much the same way as traditional money.

A bureaucrat Who had no help with dancing professionally still follow every rule even want to slow down his work and personal growth according to strain theory which type of deviance does his behavior illustrate

Answers

Ritualism. Good luck on the rest of your work.

Answer:

rulism. have fun, stay safe and send it.

Explanation:

Explain two ways the Creation account helps Catholic’s understand the nature of God In your answer you must refer to a source of wisdom or authority

Answers

The importance of the creation story in comprehending God's nature. The creation account demonstrates that God is: Omnipotent - God is all-powerful and is responsible for creating the entire universe and everything in it.

What is Catholic?

The Catechism identifies three essential elements of the common good: individual respect, social well-being and group development, and peace that results from the stability of a just society.

Catholics interpret creation stories symbolically, believing that they reveal important information about the nature of the world and humanity.

Catholicism and science, according to Pope John Paul II, are compatible. Evolutionary theory can be accepted as part of God's plan for the universe.

Thus, these are the two ways as mentioned.

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Read the following paragraph from the article "How Social Stress Makes Your Brain Vulnerable to Depression," written by
Andy Coghlan in the online edition of New Scientist magazine, published on November 13, 2017:
Social stress can trigger changes in the brain that open the door to depression. Experiments in human brains and mice
suggest that experiences such as bullying make the blood-brain barrier leaky, letting inflammation into the brain and altering
mood.
Which of the options below most correctly and effectively incorporates this source material? (Either APA or MLA style citations
are acceptable.)
Bullying makes your brain leak, according to a shocking new study reported in New Scientist (Coghlan, 2017)!
O
In "How Social Stress Makes Your Brain Vulnerable to Depression," Andy Coghlan (2017) explains how "brains and
mice" can develop depression in unpleasant social situations.
The study shows that emotional experiences can cause physical changes in the brain that lead to depression. (Coghlan,
2017).
O Coghlan (2017) describes how stress can spark changes in the brain that open the way to depression.

Answers

The most appropriate option that effectively incorporates the source material is: Coghlan (2017) describes how stress can spark changes in the brain that open the way to depression.

How is the article written?

In his 2017 article titled "The Link Between Social Stress and Depression," Andy Coghlan explores the correlation between these two factors impacting brain vulnerability.

According to Coghlan, the brain can undergo alterations as a result of events such as bullying, which can cause the blood-brain barrier to become permeable and enable inflammation to enter.

The change in brain activity has the potential to impact emotions and may lead to the onset of depression. Cognizant of the effects of emotional encounters on brain structure, Coghlan's discoveries underscore the correlation between social pressure and mental health ailments.

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YOU FORGOT MY BRAINIST

Answers

Answer:

YOU FORGOT MY BRAINIST

??(´・_・`)

If I fail a quarter does that mean I will get held back a year (middle school) I need help fastttt

Answers

Answer:

No

Explanation:

But still you have to work hard

Depend on your school but I highly doubt it. Just worry about high school. Middle school isn’t a big deal

What is the length of pq¯¯¯¯¯ ? round to the nearest tenth of a unit. Enter your answer in the box.

Answers

Answer:

it is 10.8 unit i hope this helps

Answer:

This might be the answer you're looking for.

Explanation:

The length of pq is in the screenshot I took after completing the quiz.

What is the length of pq ? round to the nearest tenth of a unit. Enter your answer in the box.

Which inequality has the solution shown below?
-18 -17 -16 -15 -14 -13 -12

0.3.1 +8 <3
0.4.1 +7<1
0.52 +6 > 3
0.2.r+ 5 > 2

Which inequality has the solution shown below?-18 -17 -16 -15 -14 -13 -120.3.1 +8 &lt;30.4.1 +7&lt;10.52

Answers

Answer: -105

Explanation:

Which of the following is the best version of the underlined portion of sentence 14 (reproduced below)? The First and Second World Wars dampen enthusiasm for saengerfests in the United States, as anti-German sentiment rose in the midst of these conflicts.

Answers

Answer:

The First and Second World Wars dampened enthusiasm for saengerfests in the United States, as anti-German sentiment rose in the midst of these conflicts.

The enthusiasm for saengerfests in the United States waned during the First and Second World Wars.

What led to this?

This decline was primarily attributed to the growth of anti-German sentiment amidst these global conflicts.

As patriotic fervor intensified and tensions escalated, public interest in German cultural events like saengerfests dwindled. The negative perception of German heritage during the wars led to a decrease in participation and support for these traditional celebrations.

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What is the name given to numbers in or above each bar in a column chart, as shown?.

Answers

The name given to numbers in or above each bar in a column chart is labels.

What is a column chart?

A column chart can be defined as a type of bar chart that is designed to display two (2) or more collections of data either in a vertical or horizontal rectangular columns (bins).

The characteristics of a column chart.The vertical axis of a column chart represents the data categories.The horizontal axis of a column chart represents the data values.

Generally, the name that is given to numbers in or above each bar in a column chart is labels.

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fill in the blanks to describe nicolas and santi day at the beach

fill in the blanks to describe nicolas and santi day at the beach

Answers

The completed sentence is;

Nicolas feels like he is having a wonderful day at the beach.

Meanwhile, Santi thinks about how he has visited the beach often

Now he wishes he could go to the mountains.

What is the explanation for the above?

In the above text, one  person  - Nicholas rarely visits the beach while Santi  if a frequent visitor.

For Nicholas, he is having a great experience while Santi is sated and wish to explore more leisurely locations.

Hence it is correct to state that:

Nicolas feels like he is having a wonderful day at the beach.

Meanwhile, Santi thinks about how he has visited the beach often

Now he wishes he could go to the mountains.

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A pentagon $abcde$ is translated north by 40 units to pentagon $a_1 b_1 c_1 d_1 e_1. $ pentagon $a_1 b_1 c_1 d_1 e_1$ is then translated east by 50 units to pentagon $a_2 b_2 c_2 d_2 e_2. $ we know the perimeter of pentagon $abcde$ is 30 units. Find $cc_2. $

Answers

Answer:

64.03

Explanation:

Since the pentagon is translated 40 units north and 50 units east, we can look at c, c1 and c2 as a right triangle.
cc1 = 40

c1c2 = 50

By pythagoras theorem,

cc2² = cc1² + c1c2²

⇒ cc2 = √cc1² + c1c2²

cc2 =

\(\sqrt{40^{2} + 50^{2} } \\\\\sqrt{1600 + 2500} = \sqrt{4100} \\\\= 64.03\)

A pentagon $abcde$ is translated north by 40 units to pentagon $a_1 b_1 c_1 d_1 e_1. $ pentagon $a_1

Given:A pentagon ABCDE is translated north by 40 units to pentagon A1B1C1D1E1. Pentagon A1B1C1D1E1 is then translated east by 50 units to pentagon A2B2C2D2E2. We know the perimeter of pentagon ABCDE is 30 units.

To find:\($CC_2$\)Solution:The diagram is shown below:In the above diagram, the given information is shown. Let the length of \($AE$ be $x$\).As we know that perimeter of pentagon $ABCDE$ is 30 units, so we can say that:AB + BC + CD + DE + EA = 30Since, Pentagon ABCDE is translated north by 40 units to pentagon \($A_1B_1C_1D_1E_1$.So, $A_1B_1$ = AB = $x$\)

We know that \($B_2C_2 = x$ and $B_2B = EA = x$. Therefore,$(C_2C)^2 = (x)^2 + (x)^2$$(C_2C)^2 = 2x^2$C2C = $\sqrt{2}x$Therefore, CC2 = C1C + C2C = 50 + C2C = 50 + $\sqrt{2}x$\)So, the value of \($CC_2$ is $50 + \sqrt{2}x$.\)

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How many times on average a person lies each day?​

Answers

Answer: Average person lies about two to four times per day.

An average person lies 2-5 times a day

A circle has a circumference of 12. It has an arc of 8/5

What is the central angle in the arc?

Answers

Answer:

14.3 degrees.

Explanation:

To find the central angle of an arc, we need to use the formula central angle = arc length / radius * 180/π. In this case, the radius of the circle is 12/2π = 2, so the central angle of the arc is 8/5 / 2 * 180/π = 14.3 degrees.

Answer:48 degrees

Explanation:The central angle of the arc is 48 degrees.

Step-by-step explanation: The question has provided the first clue, which is the circumference of the circle, given as 12 units. Also the length of an arc along the same circumference has been given as 8/5 units. The circumference of a circle is calculated as

Circumference = 2Pi x radius

Also the length of an arc is calculated as

Length of an arc = (X/360) x 2Pi x radius (where ‘X’ is the angle subtended by the arc).

Having known the answer to 2Pi x radius which is 12, and the length of the arc which is 8/5, we can now express the length of an arc as

Length of an arc = (X/360) x 2Pi x radius

8/5 = (X/360) x 12

By cross multiplication we now have

(8 x 360)/ (5 x 12) = X

2880/60 = X

48 = X

Therefore the central angle of the arc is 48 degrees.

Which term refers to the medicine that causes the body to make antibodies against certain viruses?

immunity

cilia

antibiotics

vaccines

Answers

Answer:

It is C!

Explanation:

Hope this helped!

HELP
20 POINTSSSS
Which career professionals are not required to have post-secondary education and instead typically learn through on-the-job training?

Animal Caretakers and Foresters
Sorters and Farmworkers
Soil Scientists and Conservationists
Agricultural Inspectors and Food Technologists

Answers

Answer:

B

Explanation:

Sorters and farmworkers

Why must people be careful not to touch the lion fish?
A. They release an inky toxin
B. They bite
C. They release a poison from their spines.
pls help i have a test on this

Answers

Answer:

C. They release a poison from their spines.

Explanation:

Plz mark Brainliest, thx!

C. They release a poison from their spines.

where do tornadoes most often occur in the United States

Answers

Answer:the Great Plains of the central United States

Explanation:

which sentence describes the bond formed between two identical atoms

Answers

please post the answer choices

What are some ways to develop vocabulary?

Answers

Try learning a new word every day. And try your hardest to use that word in a complete sentence. Not only will you develop your cocoa upset but also your communications skills because you will be able to convey messages with greater detail. Hope this helps!!

Researchers use a special vocabulary to make judgments about the worth of a theory of communication.

What is theory to hold value?

Sometimes, a theory has been in use for many years and continues to hold value. We say it has passed the Test of time. A theory might also have practical value that makes it useful for everyday application, which is the criterion of utility.

How broad or narrowly the theory is focused is called its scope. When a theory is developed so that it that it satisfactorily explains communication behavior in a way that employs the fewest concepts that are relatively easy to understand, it has met the standard of  parsimony.

Lastly some theories have a lot of impact because of the way they stimulate new ways of thinking and theorizing beyond what the initial theories had focused upon. Then we value a theory for its heurism.

Therefore, Researchers use a special vocabulary to make judgments about the worth of a theory of communication.

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Solve this please help me as soon as possible

Solve this please help me as soon as possible

Answers

Answer:

Option C is your Legit answer.

It is equivalent to (3x + 3)².

OPTION C

Halim needs a newsletter for the youth group members. He wants you to create this month’s newsletter for him.

He has provided a file containing the text he wants in the newsletter. You need to prepare other information for the newsletter. You will do this in steps (a) and (b).

(a)
The members have been making weekly payments for a trip to Alton Towers. Halim has provided a file containing the trip payments data.

The trip cost is £28.25 per person. Halim needs to know the amount outstanding for each member. He also needs to know the total amount outstanding for all members.

(The amount outstanding for each member is the trip cost less the total of their weekly payments.)



Evidence you must upload

A file of the trip payments data including the values you calculated.

A file of how you used ICT to do your calculations (i.e. showing the formulas you used).

Answers

To calculate the amount outstanding for each member, you need to subtract the total of their weekly payments from the trip cost, which is £28.25 per person.

What is the newsletter  about?

For example, if a member has made weekly payments of £5, £7, and £9 respectively, the total of their weekly payments would be £21. To calculate the amount outstanding for this member, you would subtract £21 from £28.25, which gives you an amount outstanding of £7.25.

To calculate the total amount outstanding for all members, you need to sum up the amount outstanding for each member.

To do this, you can use a spreadsheet program like Microsoft Excel or Go/ogle Sheets. Create a table with the following columns: "Member Name," "Total Paid," "Amount Outstanding."

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7. What is the radius of a sphere whose volume is
Jan 75.8 cubic centimeters?

Answers

Answer:

2.6254

Explanation:

4/3×pi×2.6254^3=75.8

Based on the article, what was the Holocaust?

Answers

As soon as Hitler assumed power in 1933, the Nazis' campaign of anti-Jewish persecution got under way and propoganda.

Thus, They initially utilized virulent propaganda, antisemitic laws, and limitations to foster a culture of hate and segregation and Hitler.

This victimization strategy was used to separate Jews from the general community and persuade them to depart. In truth, the number of persons departing fluctuated since it was hard to locate someplace to go and it was expensive to do so.

Jews were transported from ghettos or concentration camps to be slaughtered in their millions and Hitler. However, as the war progressed, thousands more people were transferred to concentration camps to be worked to death in support of Germany's faltering war effort. The majority were sent to a small number of specifically designed killing centers known as death camps and propoganda.

Thus, As soon as Hitler assumed power in 1933, the Nazis' campaign of anti-Jewish persecution got under way and propoganda.

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What is the answer to 2+5(8-5)=? A ball of mass of 6kg rolls with a velocity of 10m/s and creates 300 Jules of kinetic energy.how much kinetic energy would a ball with a mass of 3kg and a velocity of 5m/s create help me, the picture down below Describe and contrast the data variety characteristics of operational databases, data warehouses, and big data sets. Calculate the volume occupied by 32. 0 g of O2 gas, the pressure of the O2 gas is 78. 5 kPa at 25C After being rearranged and simplified, which two of the following equationscould be solved using the quadratic formula?A. 5x2 3x+ 10 = 5x2B. x2 - 6x- 7 = 2C. 5x3 + 2x - 4 = 2x2D. 5x2 - 3x + 10 = 2x2 + 21 $30,000 is invested for 3 months at an annual simple interest rate of 2%.(a) how much interest will be earned? (B) Describe ONE example of commercial practices that affected SilkRoads trade during the period c. 1200-c. 1450. Hannah went to the fair with her friends. She spent $7 to enter the fair and decided to play games until she won a stuffed animal. Each game cost $0.50 toplay. If Hannah spent $19 total at the fair, how many games did she play?O 12O 4O 6O 26 Instrumental music associated with a story, poem, idea, or scene, popular during the romantic period, is calledA. absolute music B. operaC. program musicD. symphony Refer to the passage."And the Reverend Father President of the Missions [Serra], assigned to the charge of Monterey, mentions, in detail and with particular satisfaction, the affability of the Indians, and the promise which they had already made him, to intrust their children to him to instruct them in the mysteries of our holy Catholic religion. That pattern and zealous minister of our religion adding a minute account of the solemn masses which had been celebrated from the arrival of the two expeditions to the departure of the packet San Antonio, and of the solemn procession of the most holy sacrament, which took place on the day of Corpus Christi, the 14th of June, with other noteworthy events that prove the special providence with which God has deigned to favor the successful issue of these expeditions, as a reward, doubtless, for the fervent zeal of our august sovereign, whose incomparable piety acknowledges as the highest obligation of his royal crown in these vast dominions, the extension of the faith of Jesus Christ, and the welfare of the wretched heathen, who being without knowledge of the gospel, groan under the tyrannical bondage of the common enemy."Report from the Portol expedition on the establishment of Catholic missions at the request of King Charles III of Spain, 1770How was the establishment of missions described in the passage motivated by Christian ideals?A)Spanish leaders thought that Christian kings would appeal to indigenous peoples who were used to autocracy.B)Spanish leaders believed that Christian nations were superior to indigenous peoples and their customs.C)Christian leaders thought that Christianity was important in creating alliances with indigenous peoples.D)Christian leaders believed that Christianity must be shared for indigenous peoples to accept their rule. which statement best illustrates an example of economic specialization? a. employee leaves a large corporation to start her own business b. an artist becomes an expert at designing a website for restaurants c. a business owner only hires employees with a wide variety of skills d. a country decides to stop importing goods from foreign companies Find sin S, sin R,cos S, and cos R. HELP SOLVE THIS QUICKy = 6x + 20y = -4x + 150 What is the second phase of mitosis, during which the chromosomes line up across the center of the cell? Subtract. 13(6) a19 b7 c-19 What are the solutions to the system of equations? {x+y=4y+12=x2+x john and wayne have the same exact genes. this indicates they must be question 45 options: dizygotic twins. co-dominant monozygotic twins. heterogenous. The first law of thermodynamics is just another form of the _____. A. Conservation of energyB. Conservation of massC. Mass- energy equivalenceD. Mechanical equivalent The following are goals scored by a soccer team at each game in their recent season.00000001111111111111112 2 23 3 323Complete the frequency table.GoalsFrequency012233445