3 years ago

Which of the following is an example of a chemical reaction?

Chemistry

1 answer:

FrozenT [24]3 years ago

6 0

All of the above are chemical reactions.
If that is a choice

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If the Temperature exerted on a sample of gas is increased from 273K to 410K, and the initial pressure is 1.3317 atm what is the

dsp73

Answer: 2.00 atm

Explanation:

P1/T1 = P2/T2

1.3317/273 = P2/410

P2 = 2.00 atm

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3 years ago

The radius of a helium atom is a 31 PM. What is the radius in nanometers?

Paladinen [302]

Answer:

Thus, the radius of the helium atom in nanometers is - 0.031 nm

Explanation:

Given that:-

The radius of the helium atom = 31 pm

Considering the conversion of length in pm to the length in nm as:-

1 pm = 0.001 nm

So,

Applying the above conversion factor in the radius of helium atom as:-

Radius = $31\times 0.001$ nm = 0.031 nm

<u>Thus, the radius of the helium atom in nanometers is - 0.031 nm</u>

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3 years ago

What is the unit of measure for energy? watt newtons joules meters per second

egoroff_w [7]

Answer:

c. Joules

Explanation:

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True or false:The nucleus is the largest part of the atom and takes up most space

alexira [117]

It has the most mass. but the electron cloud takes up the most space.

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3 years ago

Does wasting water also waste energy? Explain your reasoning.

77julia77 [94]

Answer:

Yes.

Explanation:

Wasting household water does not ultimately remove that water from the global water cycle, but it does remove it from the portion of the water cycle that is readily accessible and usable by humans. Also, "wasting" water wastes the energy and resources that were used to process and deliver the water.

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