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NNADVOKAT [17]
3 years ago
9

I need help with this plz ???

Chemistry
1 answer:
saw5 [17]3 years ago
3 0

Answer:

what is that what grade is that is so confusing

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Imagine the following scenario involving marbles as "radioactive isotopes".
sveta [45]

Answer:

1 million years

Explanation:

The half life of a radioactive isotope refers to the time it takes for the radioactive isotope to decay to half of its original amount.

The half life of a radioactive isotope is independent of the amount of starting material. Hence, whether the amount of starting material is small or large, the half life of the substance remains the same.

Hence the half life of 2 green marbles and 500,000 green marbles is 1 million years.

8 0
2 years ago
Which particle builds a static electric charge when it is transferred from one object to another?
murzikaleks [220]
The answer would be, "Electrons".
3 0
3 years ago
What is it I need help​
dybincka [34]
Hi, i think the correct answer would be D .
3 0
3 years ago
Why do scientists look for patterns in the world?
PSYCHO15rus [73]

Answer:

B. Patterns can help explain observations.

Explanation:

Hope this helps

6 0
3 years ago
Which equation correctly relates the heat of reaction to the standard heats of formation?
VARVARA [1.3K]

Answer:

D

Explanation:

∆H° = ∆Hf ° (products) – ∆Hf ° (reactants)

4 0
3 years ago
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