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Ulleksa [173]
3 years ago
11

the half-life of a certain radioisotope is 12 days. how much (mass) of a 60 mg sample will remain after 36 days

Chemistry
1 answer:
bixtya [17]3 years ago
6 0

Answer:3.5

Explanation:

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Identify the state of matter for A, B, and C.
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Explanation:

A) particles are close together in random positions with about equal kinetic energy and intermolecular forces.

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C)particles are far apart with greater kinetic energy and low intermolecular forces.

The above qualities are for Gaseous state of matter

A) Liquid

B)Solid

C)Gas

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Enter the molecular equation representing aqueous nitric acid and aqueous ammonia reacting. express your answer as a balanced mo
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Aqueous nitric acid and aqueous ammonia reacts to form ammonium nitrate 
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4 0
3 years ago
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If 30.5 g of 15% potassium nitrate solution are reacted to excess magnesium chloride how many grams of potassium chloride will b
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4 0
2 years ago
Do you know how to do this? if you have 4 grams of carbon-14, how much carbon 14 remains after 11,460 years? the half life is 5,
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6 0
3 years ago
Heelp
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Balanced:
1. <span>Na2O + H2O ---> 2NaOH
2. </span><span>K2O + H2O ---> 2KOH
3. </span><span>MgO + H2O ---> Mg(OH)2
4. </span><span>CaO + H2O ---> Ca(OH)2
5. </span><span>SO2 + H2O ⇄ H2SO3
6. </span>SO3 + H2O ---> H2SO4
All except by 2 were balanced.
7 0
3 years ago
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