Chemistry Middle School

When using the absolute method to assess muscular endurance, you should adjust the weight according to each individual's strength ability.


Please select the best answer from the choices provided.

T
F

Answers

Answer 1
I’m pretty sure it’s true I’m not 100% sure tho
Answer 2
It’s true!!!!!!!!!!!

Related Questions

what are at least 6 compounds of potassium ?

what are at least 6 compounds of potassium ?

Answers

Answer:

nitrate, carbonate, chloride, bromide, cyanide, and sulfate.

Explanation:

Answer:

Chloride CL, Potassium hydroxide KOH, Potassium chloride KCI, Potassium nitrate KNO3, Potassium carbonate K2CO3, Sulfate SO²⁻ ₄

Explanation:

If pea plants with the genotypes Pp and pp are crossed with each other, what percentage of the offspring will be pp?

Answers

i’m just gonna guess but i think 50%

Answer:

50? brainliest?

Explanation:

The diagram shows Ned’s movement as he left his house and traveled to different places throughout the day.

A line, which turns at labeled black boxes with a key showing how far 1 mile is on the line. The line starts at V Ned's House and runs right to W Pet Store then down and right to X Library then right to Y Swimming Pool then up and right to Z Gym.
Which reference point should be used to find out how far Ned traveled when he went from the pet store to the swimming pool?

V
W
X
Z

Answers

Answer:

w

Explanation:

Answer:

w

Explanation:

im taking the test rn

Which of the following statements correctly explains why physical properties of a substance can be used to separate mixtures?


1. When substances are mixed together, they retain their physical properties.


2. When substances are mixed together, you can see each individual component


3. When substances are mixed together, the mixture assumes the physical properties of each individual substance.


4. Mixtures contain different substances with different properties and chemists can separate one item from the mixture by forcing it to undergo a chemical change.

Answers

Answer:

4) Mixtures contain different substances with different properties and chemists can separate one item from the mixture by forcing it to undergo a chemical change.

Explanation:

Mixtures contain different substances with different physical properties, such as boiling point, melting point, solubility, density, and so on. These properties can be used to separate the individual substances in the mixture through various techniques. For example, distillation is a separation technique that relies on differences in boiling points of the substances in a mixture. When a mixture is heated, the substance with the lower boiling point will vaporize first, and it can be collected and cooled to form a pure substance. Similarly, other techniques such as chromatography, filtration, and crystallization also rely on differences in physical properties to separate mixtures.

On the other hand, chemical changes involve the rearrangement of atoms within a substance, resulting in the formation of a new substance with different properties than the original. While chemical changes can be used to synthesize new substances, they are not typically used to separate mixtures.

1. In these two pictures, the arrows represent forces acting. Write the names of the forces in the boxes
2. Draw and label your own arrows on these two pictures to show the forces acting.
(See the image attached)
Please help!!! It will be greatly appreciated

1. In these two pictures, the arrows represent forces acting. Write the names of the forces in the boxes2.

Answers

thew one with the plane the arrow is going slightly down and the one with the ball has two arrows one for the ball and foot both going same way

Candice did an experiment where wondered if temperature affects how cheese molds. She put a piece of cheese next to a different heat lamp and then measured how much mold was on each cheese. What is the DEPENDENT variable?

Answers

How much the cheese molds. Since it depends on the heat lamp.

How to work out the relative mass of potassium? What is the calculation? ( explained very easily )

Answers

Answer:

39

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Relative Atomic Mass = Mass of one atom
———————————
(1/12)th Mass of one C12 atom

Please help asap!! Tysm!♡♡

Please help asap!! Tysm!

Answers

Hey! I’m not sure this is right the egg has cooked the car has rusted the candle has been lighted the raw bacon has been cooked the fresh bananas are overripe and old

Answer: EGG

Explanation: RAW

*LAST QUESTION , PLEASE HELP* Why does the land around an once active coal mine remain barren? a.) Empty coal mines are flooded with acid rain so no life forms can survive. b.) Ozone is formed from hydrocarbons which prevents the growth of plants. c.) The ground where the coal was mined is acidic so few plants can grow there.

Answers

The land around a once active coal mine remains barren because empty coal mines are flooded with acid rain, so no life forms can survive. The correct option is a.

What is a coal mine?

Coal mines are the places where coal is extracted from. Mines are the place where abundant minerals are present. These minerals are extracted from these places to use the minerals as fuel, making other metals and things. The three types of coal mines are long wall mining, retreat mining, and room-and-pillar mining.

Mines are places that are dig or excavated to very deep, so the topsoil goes into the valleys hence no nutrients in the soil, no plants, and no life.

Thus, the correct option is a.) Empty coal mines are flooded with acid rain, so no life forms can survive.

Learn more about coal mine, here:

https://brainly.com/question/2624340

#SPJ5

True or False: Organic substances are always made from the same four elements including carbon, hydrogen, oxygen, and nitrogen.
FALSE
TRUE

Answers

Answer:

Four elements, hydrogen, carbon, oxygen and nitrogen, are the major components of most organic compounds.

Answer:

true

Explanation:

I need some help plsssss, no explanation needed and also, I'm being timed! Thanks for your time

I need some help plsssss, no explanation needed and also, I'm being timed! Thanks for your time

Answers

Answer:

potassium, sodium, lithium, magnesium, copper, silver, gold

Explanation:

thanks me later ')

On this number line, zero represents sea level. Plot the following points based on the description provided by dragging and dropping the dots to the appropriate locations on the number line.







greatest common factor of 8 and 12

where does this go on the number line

Answers

The greatest common factor would be 4
On the number line
The correct Answer is 4

FILL IN THE BLANKS
WILL MARK BRAINLIEST

FILL IN THE BLANKSWILL MARK BRAINLIEST

Answers

Answer:

Its not clear

Explanation:

please reupload

which chemical process is illustrated below?

which chemical process is illustrated below?

Answers

Answer:

I believe it is D, Dehydration synthesis of amino acids to form a dipeptide

I would also say it is D! Good luck!

PLS HELP ME IF YOU DONT KNON PLZ DONT GIVE WRONG ANSWER
LOOK AT THE PICS

PLS HELP ME IF YOU DONT KNON PLZ DONT GIVE WRONG ANSWER LOOK AT THE PICS
PLS HELP ME IF YOU DONT KNON PLZ DONT GIVE WRONG ANSWER LOOK AT THE PICS
PLS HELP ME IF YOU DONT KNON PLZ DONT GIVE WRONG ANSWER LOOK AT THE PICS
PLS HELP ME IF YOU DONT KNON PLZ DONT GIVE WRONG ANSWER LOOK AT THE PICS

Answers

10n = 10n= balanced
answer = 10n
Answer is 10n. Hope you do good

A model of an atom shows eight electrons in rings that represent different energy levels. How many electrons are in each energy level?

A. two in the first energy level, six in the second energy leve
B. eight in the first energy level, zero in the second energy level
C. zero in the first energy level, eight in the second energy level
D. four in the first energy level, four in the second energy level

Which statement about an atom is correct?(1 point)
A. The neutron has no charge and is found outside of the nucleus.
B. The electron has a negative charge and is found outside of the nucleus.
C. The proton has no charge and is found in the nucleus.
D. The neutron has a negative charge and is found in the nucleus A student wants to draw a model of an atom.

Which statement describes how to find the number of neutrons to include in the model?(1 point)
A. Subtract the atomic number from the mass number.
B. Add the number of electrons to the number of protons.
C. Subtract the number of electrons from the number of protons.
D. Add the atomic number and the mass number.

What is the atomic number of an atom?(1 point)
A. the number of particles outside the nucleus
B. the number of particles in the nucleus
C. the number of neutrons
D. the number of protons
PLEEEEEEEEEEEEEEASSSSSEEEEEEE HELLLLP ASAPPPPPPPPPPPP...........................

Answers

Number 1. A, two in the first energy level, six in the second energy level.

Energy levels are arranged in increasing order of magnitude in accordance with the Bohr model.

The correct sequence of answers is as follows;

1) two in the first energy level, six in the second energy level

2) The electron has a negative charge and is found outside of the nucleus.

3) Subtract the atomic number from the mass number.

4)  the number of protons

An atom contains a nucleus and electrons arranged in energy levels outside the nucleus. Each energy level is filled with electrons.

The first energy level contains only two electrons, subsequent energy levels contain a maximum of eight electrons.

The proton is positively charged, the neutron has no charge and the electron is negatively charged. The proton and neutron are found inside the nucleus while the electrons are negatively charged and found outside the nucleus.

The mass number is the sum of the number of protons and neutrons. hence the number of neutrons is the difference between the mass number and the number of protons.

The number of protons in an atom is its atomic number.

Learn more: https://brainly.com/question/14156701

What are all the breeds of dogs and how many breeds of dogs are there?

Answers

Answer:

In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.

Explanation:


There are approximately 400 separate breeds of purebred dogs worldwide. A purebred dog is considered to be one whose genealogy is traceable for three generations within the same breed

There are currently more than 340 different breeds of dogs recognised throughout the world.

Which property describes a mixture? It cannot be separated by physical methods. It has a single chemical composition. It cannot have more than one state of matter. It cannot be described by a chemical symbol or formula.

Answers

Answer:

it cannot be separated by physical methods

Explanation:

The mixture is not separated from the physical methods. Thus, option A is correct.

A mixture has been the combination of two or more substances. It has been described as a homogeneous solution.

The constituents in the mixture are indispensable. The mixture is generally homogeneous, however, heterogeneous mixtures have been possible with the substances being separated.

The mixtures have a different chemical composition and are not separated from the physical methods. Thus, option A is correct.

For more information about mixtures, refer to the link:

https://brainly.com/question/24898889

What is the charge on the Cr in Cr2O72-

Answers

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

In the dichromate ion, the oxidation number of chromium is+6. The sum of the oxidation numbers in Cr2O72-, a polyatomic ion, is -2, the charge of the ion.

Help plz, thx
Are ice caps in Greenland are composed of salt water?
Yes or no, and plz explain why.

Answers

Answer: fresh water

Explanation: its not cold enough for salt water to melt

fresh water bc it has to be a certain temperature to melt

What is NOT true about genes and chromosomes?

Genese are located on chromosomes

Chromosomes are in the nucleus

A single chromosome can contain hundreds of genes

All of these are true

Answers

Let us go option by option :

1) Genes are located in chromosomes. TRUE

Chromosomes are in cell nucleus. A chromosome contains hundreds and thousands of genes. A normal have 23 pairs of chromosomes, and a total of 46.

2) Chromosomes are the in nucleus.

TRUE

Chromosome is structure found in nucleus of the cell. It is made up of protein and DNA.

3) A single Chromosome can contain hundreds of genes.

TRUE

single Chromosome can contain hundreds of tgenes.

4) All of the above

TRUE

As all the statements above are true. The correct option is 4.

Answer:

all of them are true

Explanation:

this is because chromosomes contain genetic materials and it is present in the nucleus.
Therefore, the correct option is 4) all of these are true

no problem

Do you think rayon when burnt will stick to the body like other synthetic fibers?

Answers

In other words, since rayon is made from the plant fiber it does not get stick to our body while we burn it
it will not stick to the body most likely

Matter is made up of tiny particles

Answers

Answer: Matter is made up of extremely small particles called atoms. An atom is the smallest possible unit of matter that exhibits all the properties of that matter.

Explanation:

Answer:

Matters are made up of tiny particles that are called atoms.

Explanation: Atoms are small tiny particles that posses all the properties of particles

The toucan uses its long beak to reach fruits and berries growing on trees in the forest. The energy stored in the fruit and berries is passed on to the toucan when it is eaten. What is the source of energy for the fruits and berries growing on the trees in the tropical forest?


A: Soil

B. Sunlight

C. Heat

D. Water

Answers

Answer:

The type of adaptations of the Toucan and Monstera Plant are physical adaptions. Both of these adapted physical characteristics help these organisms to survive.  The difference in their physical adaptation is that in the Toucan, the physical characteristic helps the Toucan consume nutrients. Meanwhile, the adaptation of the Monstera Plant helps prevent harmful things such as mold.

B. Sunlight

Plants use photosynthesis to convert light into cellular energy, which allows them to make “food” out of the water and nutrients from the soil.

Please help me I will give you the brain thing and extra points. image below part

Please help me I will give you the brain thing and extra points. image below part

Answers

D is the correct answer... if u need in depth let me know

Answer:

The answer is D, when H2S gas is bubbled into a lead acetate soulution, a precipitate forms

Explanation:

This is because a physical change is when it changes but doesn't turn into a new substance. A chemical change is when it transforms into a completly new substance.  Hope this helps!!! :)

In your own words, explain the difference between how a ‘dam system’ transforms hydropower into electrical energy compared with how a ‘run-of-the-river system.

Answers

I have no idea my boi

What's lithium ?
Please explain :)

Answers

Lithium is a soft, silvery-white, metal that heads group 1, the alkali metals group, of the periodic table of the elements

Lithium (the drug) is used to treat mania, and mood disorders.

Match each letter with the part of the wave it represents in the diagram below.

Match each letter with the part of the wave it represents in the diagram below.

Answers

A-wavelength, B=amplitude, C=crest, D=trough
See diagram attached
Match each letter with the part of the wave it represents in the diagram below.

Answer:

A-wavelength, B=amplitude, C=crest, D=trough

Explanation:

write a short story using the characteristics of the subatomic particles and their locations in the atom. For example, you need a positive character, a neutral character, and a negative character. You need two different locations. One to be the center location of the story and the other to be outside the center. At a minimum you should have at least 1 paragraph with about 5 sentences. Make sure that you use complete sentences.
Make sure it is school appropriate!!

Answers

Explanation: There are three subatomic particles called electrons, protons, and neutrons. Electrons have a negative charge, protons have a positive charge, neutrons have no charge. The particles are held withen the atom by 4 fundamental forces-gravity, electromagnetic force, strong force, and weak force
A whole story ??? Like a full on story or

plz help on last question i asked

Help PLEASE!! Will mark brainly Calculate the total energy in 1.5 x 10^13 photons of gamma radiation having wavelength = 3.0 x 10^-12 m. Need to show ALL work.

Answers

Answer:

The total energy but the photons will give is 6.615 x 10^-14

Explanation:

Formula that can be used in this question is E= hf or E= hc/ λ

This is the formula that can be used to calculate the energy that the photon is carrying where it is given as the Planck's Constant .

Now putting the values given in the equation that can calculate energy we get Planck's Constant is equal to 6.62 x 10^-34

E=(6.62 x 10^-34 x 2.998 x 10^8) / ( 3 x 10^-12 )

E=6.615 x 10^-14

Answer:

The total energy but the photons will give is 6.615 x 10^-14

Explanation:

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