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Marina86 [1]
3 years ago
13

PLEASE HELP!! LAST QUESTION IM RUNNING OUT OF TIME!!

Chemistry
1 answer:
Brums [2.3K]3 years ago
7 0
The answerrrrrrr i (B)
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3 years ago
Explain, in detail, how you convert grams of one substance to grams of something else. Be specific and include each step
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I will present a simple reaction so we can do this conversion:

2H₂ + O₂ → 2H₂O

We will assume we have 32 g of O₂ and we want to find the amount of water, assuming this reaction goes to completion. We must first convert the initial mass to moles, which we do using the molar mass in units of g/mol. The molar mass of O₂ is 32 g/mol.

32 g O₂ ÷ 32 g/mol = 1 mole O₂.

Now that we have moles of oxygen, we use the molar coefficients to find the ratio of water molecules to oxygen molecules. We can see there are 2 moles of water for every 1 mole of oxygen.

1 moles O₂ x (2 mol H₂O/ 1 mol O₂) = 2 moles H₂O

Now that we have the moles of water, we can convert this amount into grams using the molar mass of water, which is 18 g/mol.

2 moles H₂O x 18 g/mol = 36 g H₂O

Now we have successfully converted the mass of one molecule to the mass of another.
5 0
4 years ago
When cold tempetures are produced in a chemical reaction, the reaction is known as?
Mashutka [201]
Endothermic reaction
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3 years ago
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Answer ASAP please!!!!!!
Oksi-84 [34.3K]

Answer:

They fall slower.

Explanation:

moon's gravitation force is effected by the mass of the moon

but because the moon has less mass,

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________________________________________________

Hope this helped.

3 0
2 years ago
The correct formula for sodium oxide is...
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Answer:

the correct formula is Na2O

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