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Artist 52 [7]
2 years ago
15

What are three ways of the atmosphere is important to living things?

Chemistry
1 answer:
UNO [17]2 years ago
7 0
  <span>1. Blocks Ultra violet rays that can be harmful.
2. Provides Oxygen, so we can live. 
3. It blocks meteors from hitting Earth's surface. 
</span><span>
</span>
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Phương trình hóa học là gì
Doss [256]

Explanation:

sự xuất bản hóa học nào? có một câu hỏi về khoa học mà bạn cần giúp đỡ? tôi luôn ở đây để giúp đỡ!

7 0
2 years ago
Choose the solvent below that would show the greatest freezing point lowering when used to make a 0.20 m nonelectrolyte solution
tatiyna

Answer : Carbon tetrachloride, k_f=29.9^oC/m will show the greatest freezing point lowering.

Explanation :

For non-electrolyte solution, the formula used for lowering in freezing point is,

\Delta T_f=k_f\times m

where,

\Delta T_f = lowering in freezing point

k_f = molal depression constant

m = molality

As per question, the molality is same for all the non-electrolyte solution. So, the lowering in freezing point is depend on the k_f only.

That means the higher the value of k_f, the higher will be the freezing point lowering.

From the given non-electrolyte solutions, the value of k_f of carbon tetrachloride is higher than the other solutions.

Therefore, Carbon tetrachloride, k_f=29.9^oC/m will show the greatest freezing point lowering.

4 0
3 years ago
Color is an example of
Nuetrik [128]

Answer:

a physical property

Explanation:

Color does not change state.

- Hope that helped! Please let me know if you need further explanation.

3 0
2 years ago
4. What is the main hydrocarbon component of natural gas? A. ethane
KIM [24]

Answer:

Q.4) C. Methane

Q.7) A. False

Q.8) A. True

7 0
2 years ago
Read 2 more answers
A student is eating a meat and cheese taco for lunch. After taking a bite he chews his taco into smaller pieces. Then enzymes in
il63 [147K]

Answer:

Most Likely B

Explanation:

7 0
3 years ago
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