2 years ago

Well the awnser is a

Chemistry

2 answers:

Lerok [7]2 years ago

8 0

Answer:

NO ITS C

Explanation:

krok68 [10]2 years ago

5 0

Answer:

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Iron-59 has a half-life of 44 days. a radioactive sample has an activity of 0.64 mbq. what is the activity of the sample after 8

myrzilka [38]

Radioactive decay is a pseudo-first order reaction. When you know the half-life of the material, you could use this equation.

A= A₀(1/2)^t/h
where
A is the final activity
A₀ is the initial activity
t is the time
h is the half-life

A = (0.64)(1/2)^88/44 = <em>0.16 mbq</em>

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What is the net ionic equation for Mg(OH)2 + HCl > MgCl2 + H2O?

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2 years ago

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lorasvet [3.4K]

Answer:

1 is

carbon dioxide co2

Explanation:

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2 years ago

The equilibrium constant for the equation Ag+(aq)+2NH3(aq)↽−−⇀[Ag(NH3)2]+(aq) is Kf=2.5×103 M−2 at 25.0 ∘C . Calculate the value

Sati [7]

Answer:

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b) Spontaneous reaction with Delta G = -85.56KJ/mol

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2 years ago