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3 years ago

A football was thrown 25m for a touchdown in 2.5s, How fast was the ball traveling?

Chemistry

1 answer:

Verizon [17]3 years ago

6 0

Answer:

V=?

S=25m

t=2.5s

V=S/t

V=25/2.5

V=10m/s

So, the ball was traveling with the speed of 10m/s.

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When silver nitrate reacts with copper, copper(II) nitrate and silver are produced. The balanced equation for this reaction is:

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The question is incomplete, here is the complete question:

When silver nitrate reacts with copper, copper(II) nitrate and silver are produced. The balanced equation for this reaction is:

$2AgNO_3+Cu\rightarrow Cu(NO_3)_2+2Ag$

Suppose 6 moles of silver nitrate react. The reaction consumes___ moles of copper. The reaction produces __ moles of copper(II) nitrate and __ moles of silver.

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Explanation:

We are given:

Moles of silver nitrate = 6 moles

For the given chemical reaction:

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By Stoichiometry of the reaction:

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So, 6 moles of silver nitrate will react with = $\frac{1}{2}\times 6=3mol$ of copper metal

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2 moles of silver nitrate produces 1 mole of copper(II) nitrate

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By Stoichiometry of the reaction:

2 moles of silver nitrate produces 2 moles of silver metal

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Moles of silver metal produced = 3 moles

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