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Semenov [28]
2 years ago
14

Which consists of only one type of atom?

Chemistry
1 answer:
saul85 [17]2 years ago
8 0

Answer:

A chemical element

Explanation:

A chemical element consists of only one type of atom.

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Bob adds heat to a substance. When enough heat is added, A. its particles move closer together and the substance becomes a gas.
Elena L [17]

Answer:

C. its particles move farther apart and the substance becomes a gas.

Explanation:

A. is wrong because moving closer together creates a solid, not a gas.

B. is wrong because moving father apart creates a gas, not solid.

C. is correct because moving farther apart creates a gas.

D. is wrong because when heat is added particles spread apart because they vibrate faster. Although, in a solid the particles are closer together.

- Just know the states of matter and how the particles move and that will help with this problem.

6 0
2 years ago
When oxygen is depleted, the citric acid cycle stops. What could we add to the system to restore citric acid cycle activity (oth
Hoochie [10]

Answer:

NAD+, FAD.

Explanation:

The citric acid cycle is popularly known as the Kreb's cycle. The cycle involve the oxidation of acetyl-CoA to produce energy. The Kreb's cycle is a chemical process that produces produces two carbon dioxide molecules,NADH,FADH2 and one ATP.

When oxygen is depleted, the citric acid cycle stops, apart from oxygen NAD+ and FAD could be added to the system to restore citric acid cycle activity. NAD+ acts as an electron acceptor.

Citric acid cycle/Kreb's cycle is an aerobic process that occurs in the mitochondria and produces thirty-six(36) ATPs.

8 0
3 years ago
What happens when an electron falls to a lower energy level?
olasank [31]
The electron releases energy.
4 0
3 years ago
A solution contains 35 g of NaCl per 100 g of water at 25 ∘C. Is the solution unsaturated, saturated, or supersaturated?
MatroZZZ [7]

Answer:

Explanation:

5 0
3 years ago
Read 2 more answers
Balanced chemical equations a) Sodium + Oxygen
mario62 [17]

Answer:

a) sodium oxide

b) potassium peroxide

c) Hydrogen chloride

d) form ammonia

e) Calcium nitride

3 0
2 years ago
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