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Sergio [31]
3 years ago
8

What is the half-life of a radioisotope?

Chemistry
2 answers:
never [62]3 years ago
4 0
<span>A.The amount of time it takes for half of the material to decay</span>
Svetlanka [38]3 years ago
4 0
The answer to your question is OPTION A
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There are millions of organic compounds but only thousands of inorganic compounds because:______
siniylev [52]

Answer:

There are millions of organic compounds but only thousands of inorganic compounds because:

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b. there is more carbon on Earth's surface than any other element.

c. atoms of elements other than carbon never combine with themselves.

d. carbon atoms can combine with up to four other atoms, including other carbon atoms.

6 0
2 years ago
Explain the difference between personal opinion/interpretation and verified observations
LuckyWell [14K]

Answer:

Explanation:

Personal opinion/interpretation are usually firsthand explanation to a phenomenon or problem set. They are usually drawn from logical reasoning and deduction about some event. Most times, they are non-scientific in nature in that they are non-methodical and do not rely on the critical thinking precepts scientific studies are hinged on.

Verified observations are usually drawn from carefully planned experiments. From the results of the experiment, critical decisions can be made.

8 0
3 years ago
What 2 types of rock make up a large majority of the composition of earth crust?
maxonik [38]
Igneous and <span>granite are the rocks.</span>
6 0
3 years ago
What volume does 14 mol of gas occupy at STP? Round to the nearest hundredth.
Anna007 [38]

Answer:

The volume is 310 L

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PV= nRT ---> V= (nRT)/P

V=( 14 mol x 0,082 l atm /K mol x 273 K)/ 1 atm

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4 0
3 years ago
The ice blocks demonstrated <br><br> A. conduction <br> B. convection <br> C. radiation
choli [55]

B, the ice blocks demonstrated convection :)

7 0
2 years ago
Read 2 more answers
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