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EleoNora [17]
2 years ago
12

Oxygen

Chemistry
2 answers:
Law Incorporation [45]2 years ago
7 0

Answer:C

Explanation:

there is 1 purple and 2 blue

Bingel [31]2 years ago
6 0

Answer:

the answer is C

Explanation:

there is 1 purple and 2 blues

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A 25.0 mL sample of a saturated C a ( O H ) 2 solution is titrated with 0.029 M H C l , and the equivalence point is reached aft
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Answer:

0.043 M

Explanation:

The reaction that takes place is:

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As 1 mol of H⁺ reacts with 1 mol of OH⁻, in the 25.0 mL of the Ca(OH)₂ sample there are 1.0817 mmoles of OH⁻.

With that in mind we can <u>calculate the hydroxide ion concentration in the original sample solution</u>, using <em>the calculated number of moles and given volume</em>:

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3 years ago
What happens to the motion of molecules when temperature decreases
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As the temperature of a solid, liquid or gas increases, the particles move more rapidly.

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Using the equations and enthalpy values provided, which mathematical expression can be used to determine the unknown enthalpy ch
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In order to solve this, we need to make use of Hess' Law.

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Among the choices, the answer is
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What happens when an electron moves from n=2 to n=5?
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10?

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A scientist exam in two atoms. One has a nucleus with five protons in five neutron surrounded by five electrons. The other has a
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