3 years ago

Predict what happens when zinc is added to water

2 answers:

6 0

As far as I know Zinc doesn't react with water, but I'm not sure. If it were, Zinc hydroxide and hydrogen would be the products, so it only happens if Zinc is more reactive than hydrogen.

aev [14]3 years ago

6 0

Answer:

Zinc doesn't react with water.

Explanation:

It forms a layer of insoluble zinc hydroxide.

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Answer:

1. 0.097 s

2. 0.420 M

Explanation:

To solve both questions we'll use the formula:

[A]ₓ = [A]₀ - kt

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1) We input the data given by the problem:

0.167 M = 0.700 M - 5.48 M/s * t

And solve for t:

t = 0.097 s

2) We input the new data:

[A]ₓ = 0.500 M - 0.361 M/s * 0.220 s

and solve for [A]ₓ:

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Answer:

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Dovator [93]

Conversion Factors:

1.61 km = 1 mile

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60 min = 1 hour

Use dimensional analysis to solve.

$=\frac{16\ meters}{1\ second}$ × $\frac{1\ km}{1000\ meters}$ × $\frac{1 mile}{1.61\ km}$ × $\frac{60\ seconds}{1\ min}$ × $\frac{60\ min}{1\ hour}$

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