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kicyunya [14]
3 years ago
14

Greg checks his watch one day at noon when the Sun is directly overhead. He decides to check his watch when the Sun is directly

overhead again tomorrow.
About how many hours will pass before the Sun is directly over Greg's head again?

Round to the nearest hours

How many hours would it be?
Chemistry
1 answer:
agasfer [191]3 years ago
4 0
24 because the sun has to be over his head again...?
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Convert 3 moles of h2o into grams
lilavasa [31]
To convert 3 mol H2O to grams, just multiply by the molar mass of H2O. 

<span>3 mol H2O * 18 g H2O / 1 mol H2O = 54 g H2O 
 
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4 0
3 years ago
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3 years ago
2 NaCL + CaO = CaCL2 + Na2O
Naily [24]

222 grams of calcium chloride is produced.

<h3><u>Explanation</u>:</h3>

The mole concept and the chemical equation are very much closely related with each other. In the chemical reaction, the compounds or elements in both sides are balanced according to the number of atoms of each side of the reaction. So from there we can easily find the amount of reactant reacts to produce desired product.

Here we can see that 2 moles of sodium chloride produces 1 mole of calcium chloride.

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7 0
3 years ago
The following equation is balanced according to the Law of Conservation of Mass:
igor_vitrenko [27]
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6 0
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kolbaska11 [484]

Answer:

2B2 + 3O2 → 2B2O3

Explanation:

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2. Create a System of Equations, One Per Element

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7 0
2 years ago
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