An element is:
A. A compound formed when different atoms react and form bonds with each other.
B. A pure chemical compound consisting of multiple atomic numbers.
C. A pure chemical substance consisting of one type of atom.
D. Two or more compounds that are mixed together but not chemically bonded.
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Related Questions
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Solve the inequality. Explain all steps and identify the properties used.
n−3+5>4
Answers
Answer:
hmm mm?mmmmmmmmmmmmm
Answer:
n-3+5>4
n>4+3-5
n>2
I think
Golden jackals who are no longer in a pack will trail a tiger so they can feed on what the tiger kills. What type of symbiotic relationship is this?
Answers
Answer:
Commensalism
Explanation:
Commensalism Is where one animal has the benift while the other is unharmed, in your question the tiger gets nothing out of the jackal following it but the Jakel gets a free meal. Hope this helped
Identify two characteristics shared among transverse waves, longitudinal waves, and surface waves.
Answers
Answer: For transverse waves, the waves move in perpendicular direction to the source of vibration.
For longitudinal waves, the waves move in parallel direction to the source of vibration .
They are similar within the sense that energy is transferred within the kind of waves.
Explanation:
The shared characteristics between traverse, longitudinal and surface waves include :
Traverse, longitudinal and surface waves are all mechanical waves They only transport energy without transporting matter.Mechanical waves are simply waves which requires a material medium to propagate. They include longitudinal, surface and traverse waves.
Also, all three waves transfer energy through a medium without the transfer of materials or matter in the medium.
Therefore, all three waves are mechanical waves and do not transfer matter.
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Which of the following metals is in the liquid state at room temperature?
(a) Mercury
(b) Aluminium
(c)Potassium
(d)Sodium
Answers
Answer:
(a ) Mercury. is the liquid state metal
Explanation:
.
Which of the following metals is in the liquid state at room temperature?
Mercury
What is the name given to this group of elements?
a.
halogens
c.
transition metals
b.
alkali metals
d.
noble gases
Answers
Answer: The answer is A. Halogens
Explanation:
I hope this helps you :)
If you are leading a team to clean an oil spill in rough waters, which of the following methods would be most effective to clean the oil?
Install booms made from, or with, sorbent materials around the oil spill.
Install hard booms around the oil spill.
Coat the surface of the water with a sorbent material.
Wait until the water calms down and then install booms to contain the spill.
Answers
Answer:Install booms made from, or with, sorbent materials around the oil spill.
Explanation:Dispersants and booms and skimmers are the most frequently used methods to clean up ocean oil spills. All methods have advantages and disadvantages. The effectiveness depends on the situation – the amount and type of oil, the ocean currents and tides and the weather.
Explanation: Dispersants and booms and skimmers are the most frequently used methods to clean up ocean oil spills. All methods have advantages and disadvantages. The effectiveness depends on the situation - the amount and type of oil, the ocean currents and tides and the weather.
should people use crispr to change human traits
Answers
Answer:
What do YOU think?
Explanation:
This question is asking for an opinion. The word should is included.
Choose the phrase that best defines ecosystem service. (1 point)
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Human:
✧･ﾟ: *✧･ﾟ:* Answer: *:･ﾟ✧*:･ﾟ✧
✅ the first one
I WOULD APPRECIATE BRAINLIEST!
~ ₕₒₚₑ ₜₕᵢₛ ₕₑₗₚₛ! :₎ ♡
~
Answer:
the third one but its probably wrong
Explanation:
because
Science homework
Pls help me!!!!!!!!!!!!!!!
Answers
Answer:
first one
Explanation:
Particle of solids are very close as the particle can not move they have exact volume,shape
Answer:
First one
Explanation:
since the particles of a solid are packed together.
please help me 7th grade science
When a chemical reaction occurs, what happens to the atoms of the two substances? Provide an example from the Sim (on Amplify) as evidence to support your answer.
When a chemical reaction does not occur, what happens to the atoms of the two substances? Provide an example from Sim as evidence to support your answer.
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An example of this can be seen in the Sim on Amplify, where students can experiment with different chemical reactions. For instance, in the "Chemical Reactions" Sim, students can explore the reaction between iron and sulfur to form iron sulfide. In this reaction, the iron atoms and sulfur atoms combine to form a new compound, iron sulfide, with different properties than the original iron and sulfur. The atoms of the iron and sulfur are rearranged to form new bonds, resulting in the formation of a new substance. This is an example of a chemical reaction, where the atoms of the two substances are rearranged to form a new compound with different properties.
Answer:
Explanation:A chemical response is a chemical transformation in which two chemicals combine to create a third component.
(i) Adding diluted acid to an active metal causes the test tube to heat up and hydrogen gas to escape, which results in the production of heat.
(ii) When diluted hydrochloric acid is added to silver nitrate, AgCl, a white precipitate, results.
(iii) When water is added to quicklime, the mixture boils and produces heat along with a hissing sound.
(iv) Thermal breakdown of mercury oxide - Mercury turns from red to a metallic silver tint as a result of this process.
As Danny was pouring cereal for his breakfast, he noticed that the cereal box says that the cereal contains 5 milligrams of iron per serving. Danny decided to perform an experiment to test this claim. He found that the cereal contains 4.6 milligrams of iron per serving. Based on Danny's measurement, the value reported on the label is ( CORRECT OR INCCORECT) because A: (IT IS DIFFERENT FROM THE VALUE DANNY MEASURED) B: (IT IS REORTED TO THE NEAREST MILLIGRAM) C: (IT USES THE SAME UNITS THAT DANNY USED).
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Answer:
Correct, because B it is reported to the nearest miligram
Explanation:
4.6 rounded up is 5
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.
Calculate the volume (in cm3
) of 54 g
of water at 1 ∘C
.
Express the volume in cubic centimeters to two significant figures.
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What is the molarity of 0.945 L of a solution that contains 0.227 moles of Fe(NO3)3?
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Answer:
0.2402 M
Explanation:
0.945 L sol contains = 0.227 moles
1 L sol will contain = (0.227/0.945)*1 = 0.2402 moles
Molarity = 0.2402 moles/L or M
please help fast
its due today
Answers
this is not math, put this in scinence
What was the low temperature for hurricane Katrina?
Answers
Answer: 90 degrees F
Explanation:
The life form represented by the fossil in rock layer 1 is not present in any of the layers above it. What is the most likely explanation for this?
A.
The life form evolved into all of the species in the next layer.
B.
The life form only recently evolved.
C.
The life form became extinct in the region long ago.
D.
The life form only recently moved to the region.
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Answer:
C.
The life form became extinct in the region long ago.
Select three (3) types of waves that can be harmful to life.
a. Visible light
b. Ultraviolet rays
c. Radio waves
d. Microwaves
e. X-rays
f. Infrafred rays
g. gamma rays
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Answer:
opt a f g is correct answer ok
Answer:
x-rays,gamma rays and ultraviolet rays are harmful to life.
Explanation:
hope this will hep you!
can someone please answer this question
Answers
Answer: 4
Explanation: Count the blue ones and there are 4. hope this helps :)
The two insulated beakers shown contain equal amounts of identical liquids. The temperature of Beaker A is 85°C. The temperature of Beaker B is 40°C. A metal rod connects the beakers. Five minutes later, the temperature of Beaker A is 75°C and the temperature of Beaker B is 50°C. What might the temperatures be after another five minutes have passed?
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Temp. of Beaker A = 68°C, Temp. of Beaker B = 57°C
I think this is right srry if its not :]
Explain how you could decrease the thermal energy of a can of soup you just took out of the pantry.
Answers
Answer:
Put the can in the refrigerato: Explanation: The thermal energy of a syst is proportional to the temperature in Kelivin. Therefore if the can has cooled, is has lost thermal energy.
Explanation:
Answer: put it in the refrigerator
Explanation: It will decrease because increasing an object's temperature decreases its thermal energy.
Which of the following statements fully describes what an object may do when it experiences unbalanced forces? Select the two best answers.
A. It may change directions.
B. It will move at a constant speed.
C. It may slow down.
D. It may slow down or speed up.
E. It will stay stationary.
Answers
Answer:b
Explanation:
You are given an unknown substance, which may be an acid or a base or may be neutral. To determine which, you will need to test for specific properties. Select the laboratory equipment below that would help classify this substance.
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Inappropriate equipment-magnet, hot plate, beaker of water, conductivity tester, and balance
To determine the need to test for specific properties the equipment used is litmus paper.
What are specific properties?Specific properties are defined as a features of a material are generated from its other extensive and intensive properties. The uses of specific properties are Ranking, Classifying, and Comparing: Specific features can be used to compare two attributes while reducing the impact of differences in a third attribute.
Litmus paper is defined as a kind of paper that can be used to detect acidity because it changes color in relation to how acidic the solution it is dipped in is. As blue litmus paper turns red under acidic conditions, and red litmus paper turns blue under basic or alkaline settings, the primary application of litmus is to evaluate whether a solution is acidic or basic.
Thus, to determine the need to test for specific properties the equipment used is litmus paper.
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What description explains how pollen is received?
Question 14 options:
The ovule at the top of the pistil receives pollen.
Also im banned for a day
The stigma at the top of the pistil receives pollen.
The pistil at the top of the stamen receives pollen.
The stamen at the top of the pistil receives pollen.
Answers
The head of the pistil. The stigma receives pollen, which will begin the process of fertilization.
A species of insect will most likely go extinct as a result of which of the following changes to its environment?
A The introduction of a toxic pollutant to the entire range of the species
B The separation of the population into two geographic regions
C The gradual replacement of its primary food plant by a related species
D Climate change that extends the period of its reproductive activity
Answers
Answer:
A or D but I think MORE A
Explanation:
more like a than D
When a species becomes extinct all its genetic heritage is lost. Here The introduction of a toxic pollutant to the entire range of the species causes the extinction of the species and also the climate change. The correct options are A and D.
What is extinction?The process of evolution which leads to the disappearance of a population or species is defined as the extinction. The species evolve into new species in order ton adapt to the environmental changes in the genetic heritage.
The pollution from industries and vehicles will cause a drastic change in the level of oxygen in the atmosphere as well as water. This is responsible for the extinction of the most of the aquatic as well as terrestrial species.
Climate change is also an another factor which cause the destruction of the organisms. Many organisms are died due to global warming.
Thus the correct options are A and D.
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which is not an independent variable
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Option B (Signal strength at the computer). This variable sounds like something that would be measured - and is affected by the independent variables, this variable is known as the dependent variable.
G
A substance occupies one half of an open container. The atoms of the substance are closely packed but are still
able to slide past each other.
What is most likely the phase of the substance?
gas
liquid
solid and gas
O liquid and solid
Mark this and return
Save and Exit
Next
Submit
Answers
Answer:
Solid and gas
Explanation:
describe the role of oceans in the water cycle?
Answers
Answer: The ocean plays a key role in this vital cycle of water. The ocean holds 97% of the total water on the planet; 78% of global precipitation occurs over the ocean, and it is the source of 86% of global evaporation. ... Water evaporates from the surface of the ocean, mostly in warm, cloud-free subtropical seas.
Explanation:
Hope this helps!
Those are some of the thing I can just think of from my aice marine class I’m sure there’s more I hope this helps.
A basketball is made of matter. fire itself is not matter, however the wood that burns is matter. a basketball is very diffrent from a fire. what are some diffrences that might make a basketball matter but not a fire
Answers
Answer: A basketball is a solid and fire is a gas
Explanation:
To prove that a basketball is a solid you can try to move your hand right through it, you cant so its a solid
To prove fire is a gas you can try to move your hand right through it, you can move your hand right through it so its a liquid or gas in this case it is a gas
Where does most fresh water exist?
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Answer:
aquifers, ice caps, and glaciers I think
(C) aquifers, ice caps and glaciers