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damaskus [11]
3 years ago
15

Determine between what two integers the square root of a number is

Chemistry
1 answer:
kondaur [170]3 years ago
4 0

Answer:

If you have your square roots for memory, you know that the square root of 36 is equal to 6. Use a calculator to check your work. Take the square root of 36, as well as the square roots of the two integers surrounding 36, and make sure that the square root of 36 is between the square roots of the two integers.

Explanation:

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A 15.50 gram sample of a gas exerts a pressure of 1.40 atmospheres when held in an 8.00 liter at 22 °C. What is the molar mass (
Lostsunrise [7]

Answer:

33.5 g/mol

Explanation:

PV=nRT

(1.40 atm)(8.00 L)=n(0.08206)(295 K)

n=0.463 mol

15.50 g/0.463 mol=33.5 g/mol

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3 years ago
how much energy is required to heat an iron nail with a mass of 25.5 grams from 65° until it becomes red hot at 720 degrees Cels
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What is “ location of the merkels cells “
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If you could explain what “merkels” are, the question would be more clear.
3 0
4 years ago
An atom that has fewer neutrons than protons and more electrons than protons is a(n)
Umnica [9.8K]

<u>Answer:</u>

<em>A solution that has fewer neutrons than protons and more electrons than protons is a negative ion. </em>

<u>Explanation:</u>

<em>Atoms in their original state have equal number of protons and electrons. The subatomic particles that take part in reaction are electrons.</em> When the electrons of an atom involve in a reaction an atom may lose or gain electrons and reach ionic state.

Ions can be positively charged or negatively charged and the charge acquired depends on whether electrons are gained or lost. The process of <em>losing electrons make an atom a positively charged ion and gaining electrons make an atom a negatively charged ion. </em>

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8 0
3 years ago
Mg(OH)2 is a slightly soluble salt what is the Ksp expressi a. [Mg2+][20H J? b. (Mg2+][OH-]2 c. [Mg2][OH-] d. [Mg2][OH-]?
lesantik [10]

Answer:

B) k_{sp} =[Mg_{aq} ]*[OH_{aq}]^{2}

Explanation:

Ksp is the solubility product constant.

For a generic chemical equation

AB_{2} = A_{aq}+2B_{aq}

The Ksp for this generic chemical equation is

k_{sp} =[A_{aq} ]*[B_{aq}]^{2}

So the Ksp fot the Mg(OH)2 is

k_{sp} =[Mg_{aq} ]*[OH_{aq}]^{2}

5 0
4 years ago
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