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vodka [1.7K]
3 years ago
15

2 Points

Chemistry
2 answers:
Rasek [7]3 years ago
7 0

Answer:

<h3>A. Magnesium (Mg)</h3>

Explanation:

As the elements go left in the periodic table, they have fewer valence electrons.

Magnesium has 2 valence electrons.

Neon has 8 valence electrons.

Chorine has 7 valence electrons.

Silicon has 4 valence electrons.

Magnesium has the fewest valence electrons.

Leviafan [203]3 years ago
6 0
It’s number C. Chlorine
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What is the evidence of a chemical reaction when the fireworks go off
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What mass of ammonia can be produced if 13.4 grams of nitrogen gas reacted ?
aivan3 [116]

Answer:

If 13.4 grams of nitrogen gas reacts we'll produce 16.3 grams of ammonia

Explanation:

Step 1: Data given

Mass of nitrogen gas (N2) = 13.4 grams

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Step 2: The balanced equation

N2 + 3H2 → 2NH3

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Moles N2 = Mass N2 / molar mass N2

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Moles N2 = 0.479 moles

Step 4: Calculate moles of NH3

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Step 5: Calculate mass of NH3

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Mass NH3 = 16.3 grams

If 13.4 grams of nitrogen gas reacts we'll produce 16.3 grams of ammonia

3 0
3 years ago
To what temperature must 7. 50 moles of a gas have to be heated in a 20L container in order for it to exert a pressure of 6. 50
givi [52]

Answer:

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weeeeeb [17]
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6 0
4 years ago
Read 2 more answers
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