CHEMISTRY MIDDLE SCHOOL

Which question would most likely be studied by a physicist

Answers

Answer 1
Answer:

Answer:

how does gravity affect something

Explanation:

they study  physics.

hope this helped

Related Questions

Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?© A.carbon + oxygen + carbon dioxideOB. carbon + oxygen - carbon dioxideC.carbon dioxide - carbon + oxygenO D.carbon dioxide + carbon - oxygen
A student hypothesizes that since elements in the same row have the same number of energy levels, they should behave the same in chemical reactions. Explain why you agree or disagree with this hypothesis.i'm having a bit of trouble with this question :P anyone know?
When copper is hammered into a sheet what type of change has the matter gone through?
Which cell structure most resembles the human nervous system?endomembrane system Golgi apparatus nucleus rough ER
Which statement best describes the temperature of the oceans surface water

Regarding the area labeled D, which best describes the characteristics of the ocean current in this location?A.
cold, high salinity, and less dense waters

B.
warm, low salinity, and less dense waters

C.
warm, high salinity, and dense waters

D.
cold, low salinity, and dense waters

Answers

Answer:

D

Explanation:

Explain why animals must eat food, but plants do not have to.

Answers

Plants do eat food. They get the food through a process called photosynthesis. In this process,  plants take carbon dioxide (the air we breathe out), water, and other nutrients, then uses sunlight to cocmbine these to make sugar. (The sunlight is captured and stored within an organ only plants contain called chloroplasts).
Animals get energy by eating food. Plants get energy through photosynthesis, the process when plants turn sun into energy. 

The heat of vaporization for ethanol is 0.826 kJ/j. Calculate the heat energy in joules required to boil 45.65g of ethanol

Answers

Answer:

ethanol is already at the ethanol's boiling point: (0.826 kJ/g) x (70.05 g) = 57.8613 kJ = 5.79 x 10^4 J.

Missing: 45.65 ‎| ‎Must include: ‎45.65

Explanation:

Answer:

Explanation:

Supposing the temperature of the ethanol is already at the ethanol's boiling point:

(0.826 kJ/g) x (70.05 g) = 57.8613 kJ = 5.79 x 10^4 J

Beginning with an explanation of gravity's effect on a nebula, explain how we humans owe our existence to gravity.

Answers

When nebulae collapses due to their own weight, this is due to gravity. The gravity causes atoms to fuse and a protostar is born from the fusion of hydrogen. Fusion of hydrogen forms heavier elements such as helium and more fusion of helium forms carbon. Carbon is the significant element of life and is formed in the center of stars due to nuclear fusion as a result of gravitational force.

Whats the difference between hetergeneous and homogeneous?

Answers

In Homogeneous, "Homo" means same, so homogeneous means the same nature or kind.

 Heterogeneous is the opposite. It means diverse.
 
A good way to remember is just think of homo as same. And the rest should come to you.

Hope this helps! :)

Which of the following is not an option for solving the world water crisis? a. desalination b. finding new sources of freshwater c. reducing overconsumption d. wastewater treatment plants Please select the best answer from the choices provided A B C D

Answers

Answer:

Option(b)

Finding new sources of fresh water is not the correct method For solving the world water crisis the solution

Explanation:

Very small amount of water available on earth is freshwater and can be used by humans for drinking and other basicnecessities. Finding a new source for fresh water is a difficult also there is an no source  found yet according to physical geography of the earth

Water consumption is need of the hour as the population of 7 billion can not survive without it and reducing over consumption can help savehugeamounts of water.

Answer:

The correct answer is option b. finding new sources of water

Explanation:

The other options are more proactive ways of alleviating the crisis, while finding new sources of freshwater is hardly an option. That would likely involve melting the glaciers to extract the Earth's largest fresh water reserves, which would subsequently destroy polar ecosystems and alter the thermohaline circulation of water across the globe, which relies heavily on the Earth's polar regions and has a large effect on the planet's climate.
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