The time required for one-half of the atoms from a sample of a radioactive substance to decay is called its _____.a. half-life
b. beta decay
c. alpha decay
d. isotope number

Answers

Answer 1

Answer: The half life, this is how long it takes for half of the atoms to decay

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The solubility of KCl(s) in water depends on the(1) pressure on the solution
(2) rate of stirring
(3) size of the KCl sample
(4) temperature of the water

Answers

The answer is (4). The solubility of a substance majorly depends on its property. And the temperature and pressure can also influence. But the pressure can just influence the solubility of gas. The choice of (2) and (3) can affect the speed of dissolving.

Answer:

4) temperature of the water

Explanation:

Which statement describes a chemical proper of magnesium 1. Magnesium is malleable
2.Magnesium conducts electricity
3.Magnesium reacts with an acid
4.Magnesium has a high boiling point

Answers

The statement describes a chemical proper of magnesium is that Magnesium reacts with an acid. The answer is number 3. The reset of the choices describe Magnesium's physical properties

Choose the correct equation to represent the following statement (unbalanced chemical equation):Aluminum reacts with hydrochloric acid to yield aluminum chloride and hydrogen.

A. AlCl3 + H2 Al + HCl
B. Al + HCl AlCl3 + H2
C. Al HCl + AlCl3 + H2
D. Al + HCl AlCl3 + H2O

Answers

B. Al +HCI AICI3 +H2. I hope this helps

For water to become a mechanical weathering agent through ice wedging, it needs to go through a cycle of freezing and thawing.True
False

Answers

The statement "For water to become a mechanical weathering agent through ice wedging, it needs to go through a cycle of freezing and thawing." is true

When the following is balanced, C₄H₁₀ + O₂ → CO₂ + H₂O, what is the coefficient of CO₂? a. 2
b. 4
c. 8
d. 10
e. 13

Answers

It should looks like this
$2C_4H_(10)+13O_2->8CO_2+10H_2O$

Why do nurses need to understand chemistry?A. Chemistry helps them understand how germs transmit disease.
B. Chemistry helps them keep accurate health records.
C. Chemistry helps them understand how medicines work.
D. Chemistry helps them learn the parts of the body.

Answers

Option D. Chemistry helps them learn the parts of the body is the reason need to understand chemistry.

Why do nurses need to understand chemistry?

Chemistry exists as the branch of science that contracts with the properties, composition, and arrangement of elements and compounds, how they can vary, and the energy that exists released or absorbed when they change.

Nurses must utilize organic chemistry to determine how the bodies of their patients metabolized glucose, and how the body responds to it. On a more complex level, nurses must cause conclusions based on their knowledge of organic chemistry to help protect the lives of their patients.

Hence, Option D. Chemistry helps them learn the parts of the body is the reason need to understand chemistry.

To learn more about Uses oforganic chemistry refer to:

brainly.com/question/24175552

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D the new toy and a little bit more of the old stuff that you tatty

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Which one of the ff is correct about Acids?a,acids have bitter tasteb,acids have HP value of less than 7c,acids have POH value of less than 7d,all are correct