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il63 [147K]
3 years ago
15

Alkaline earth metals are very reactive because of how many valence electrons ?

Chemistry
1 answer:
Alborosie3 years ago
8 0
Their is 2 valence electrons
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When hot chocolate mix is added to water, the hot chocolate is the _____ and the water is the ______?
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salute vs the solvent a solvent is what a salute gets dissolved in

in this case the salute is the chocolate and the solvent is the water

  

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3 years ago
Molarity, chemistry general chemistry
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Answer:

a. 0.026 M

Explanation:

Molarity is a measure of the molar concentration of a solution. It can be calculated by using the following formula:

Molarity = n/V

Where;

n = number of moles (mol)

V = Volume of solution (L)

Based on the information provided;

V = 23.2mL = 23.2/1000 = 0.0232 L

n = ?

To get the number of moles of KHP, we use the formula:

mole = mass/molar mass

mole (n) = 0.123/204.2

mole (n) = 0.0006024mol

Molarity = n/V

Molarity = 0.0006024 ÷ 0.0232

Molarity = 6.024 × 10^-4 ÷ 2.32 × 10^-2

Molarity = 6.024/2.32 × 10^(-4--2)

Molarity = 2.59 × 10^-2

Molarity = 0.026 M

4 0
3 years ago
How large would the state of New York (235 miles across) be?
Ann [662]

Answer:

235 miles equals 5,280 feet

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Which statement best describes the variables in a controlled experiment?
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The statement that best describes the variables in a controlled experiment is independent variable while all other conditions are unchanged.

<h3>What is an experiment?</h3>

An experiment is a scientific research, findings or investigation about a subject matter with the aim of validating a claim and establishing theories.

A controlled experiment refers to an experiment in which the variables involved and the control factor are kept in the same group except for one variable which can be changed.

Therefore, The statement that best describes the variables in a controlled experiment is independent variable while all other conditions are unchanged.

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