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Nat2105 [25]
3 years ago
14

5. Acid + Metal → a Salt + _______

Chemistry
2 answers:
aliya0001 [1]3 years ago
5 0
The answer is Hydrogen

This is what happens when acids react with metals
Yuki888 [10]3 years ago
4 0

Answer:

When an ACID reacts whit METAL,a SALT and HYDROGEN are produced.

Explanation:

hope this help!

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2 years ago
Read 2 more answers
If a substance has a half life of 58 years and starts with 500 g radioactive, how much remains radioactive after 30 years?
Vilka [71]

Answer:

A = 349 g.

Explanation:

Hello there!

In this case, since the radioactive decay kinetic model is based on the first-order kinetics whose integrated rate law is:

A=Ao*exp(-kt)

We can firstly calculate the rate constant given the half-life as shown below:

k=\frac{ln(2)}{t_{1/2}} =\frac{ln(2)}{58year}=0.012year^{-1}

Therefore, we can next plug in the rate constant, elapsed time and initial mass of the radioactive to obtain:

A=500g*exp(-0.012year^{-1} *30year)\\\\A=349g

Regards!

5 0
3 years ago
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