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PSYCHO15rus [73]
3 years ago
6

STP is:

Chemistry
1 answer:
svp [43]3 years ago
5 0
The correct answer is a
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When the football is on its way up, 1. BLANK energy is being transformed into 2. BLANK energy.
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3 years ago
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How many grams of magnesium nitride is required to produce 25.00 g of magnesium hydroxide?
Lesechka [4]

Answer:

25 grams of Mg(OH)2 will be produced by 14.424 gram of Mg3N2

Explanation:

The balanced equation is

Mg3N2 + 6H2O -> 3Mg(OH)2 + 2NH3

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Molecular weight of magnesium hydroxide = 58.3197 g/mol

one mole of Mg3N2 produces three moles of 3Mg(OH)2

100.9494 g/mol of  Mg3N2 produces 3* 58.3197 g/mol of Mg(OH)2

1 gram of Mg3N2 produces

\frac{3* 58.3197}{100.9494 } \\1.733grams of Mg(OH)2

Or 1.733 grams of Mg(OH)2 will be produced by 1 gram of Mg3N2

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6 0
3 years ago
What is the oxidation number of chlorine in HClO4?
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CI=4O=-1

O has a 2- oxidation change so

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So the oxidation number of chlorine is 7 in this case

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All of the following are diatomic molecules except? a)H b)Br c) CI d)S
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<span>d)S is not one of them. 

Here's an easy way to remember them, attached: </span>

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3 years ago
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