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aksik [14]
3 years ago
12

A person can have the same momentum as a train?True or False​

Chemistry
1 answer:
mestny [16]3 years ago
8 0
The answer is true !!!
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Calculate how many moles of element Q are in 23.53 g of element Q.
pogonyaev

Answer:

0.579 moles

Explanation:

Moles = 23.53/40.64

= 0.5789 moles

7 0
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How much Oxygen would be required to react with 101 g of Methane?
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S<br> SIO₂ +3C Sic +20o<br> Sic ? mass in grams<br> С c-
seraphim [82]

Answer:

26.74g

Explanation:

The equation of the reaction is;

SIO₂ + 3C --> SiC +2CO

From the balanced equation, the relationship between SiC and C is;

3 mol of C produces 1 mol of SiC

Converting mol to mass using; Mass = moles * Molar mass

Mass of SiC = 1 mol * 40.11 g/mol = 40.11g

This means;

3 mol of C produces 40.11g of SiC

2 mol of C produces xg of SiC

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2 = x

x = 2 * 40.11 / 3 = 26.74g

6 0
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Why is reaching activation energy necessary
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