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Zanzabum
3 years ago
9

What is an an example of a chemical reaction?

Chemistry
2 answers:
deff fn [24]3 years ago
6 0

Answer:

2

Explanation:

Number 1 wouldn't be because it is a physical change

Number 3 wouldn't be because it is a physical change, as well

Number 4 wouldn't be because it is a physical change, too.

Therefore, it is 3

Hopefully I helped!

-Lavander Vye

Anna11 [10]3 years ago
3 0

Answer:

nail rust!!!!!!!!!!!!!!!!!!

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c

Explanation:

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The answer to this question would be: lower molar concentration

Osmotic pressure is influenced by the number of ions and the concentration of the molecule in the solution. In NaCl, the molecule will split into 1 Na+ ion and 1 Cl- ion which results in 2 ions per compound. In MgCl2, the compound will split into 1 Mg2+ ion and 2 Cl- ion which results in 3 ions. Therefore, the osmotic pressure of MgCl2 will be 3/2 times of NaCl.
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3 years ago
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3 0
2 years ago
What is the difference between a volume that is delivered and a volume that is contained?
nikdorinn [45]

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3 0
3 years ago
What mass of silicon dioxide contains 9.72 X10e24 molecules of silicon dioxide?
dangina [55]

Answer:

1033.36g

Explanation:

From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02x10^23 molecules. This means that 1 mole of SO2 also contains 6.02x10^23 molecules.

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6 0
3 years ago
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