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AnnZ [28]
3 years ago
15

Why is carbon dioxide important to life on Earth?

Chemistry
2 answers:
mestny [16]3 years ago
6 0
I would choose B. Because plants take in carbon dioxide and produce oxygen.
Ber [7]3 years ago
5 0

Answer:

Because that’s what plants use to breath

And plants produce oxygen btw

Explanation:

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To what temperature does a 250.0-ml cylinder containing 0.1000 mol he need to be cooled in order for the pressure to be 253.25 k
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76.19 K according to Gradpoint (my hw). 

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3 years ago
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The ph of the equivalence point of a weak acid–strong base titration is _________.
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Answer:

used to determine the concentration of the acidic solution by titrating it

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Rank the following aqueous solutions in order of increasing<br> (c) freezing point;
saveliy_v [14]

0.01 m AgNO_{3} < 0.03 m CuSO_{4}< 0.04 m urea

As molal concentration rises, so does freezing point depression. It can be expressed mathematically as ΔTf = Kfm.

<h3>What is Colligative Properties ?</h3>
  • The concentration of solute particles in a solution, not the composition of the solute, determines a colligative properties .
  • Osmotic pressure, boiling point elevation, freezing point depression, and vapor pressure reduction are examples of ligand-like properties.
<h3>What is freezing point depression?</h3>
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  • Examples include combining two solids together, such as contaminants in a finely powdered medicine, salt in water, alcohol in water.
  • An significant factor in workplace safety is freezing points.
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Learn moree about Colligative Properties here:

brainly.com/question/10323760

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5 0
1 year ago
Calcium is a nontoxic metal that is used in supplements to maintain strong bones. Under high pressure conditions, over about 320
Lera25 [3.4K]

Explanation:

It is known that in a simple cubic unit cell the atoms are only present at the corner of the unit cell. This means that there are in total 8 atoms present in a simple cubic unit cell.

Therefore, in one simple cubic unit cell sharing of one atom is only \frac{1}{8}.

Hence, the total number of atoms in a unit cell will be as follows.

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Is the source an authority on the subject?

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To figure out which source is accurate, you want to find out the source's authority on the subject. For  example, if you wanted to learn how to play the piano, you wouldn't go to a dance teacher, you would go to someone who knows how to play the piano. The person who knows how to play the piano has more authority to teach the piano than a dance teacher.

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