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erastova [34]
3 years ago
12

What ion do most basic compounds contain? A. H2O B. H2O- C. OH- D. H-

Chemistry
1 answer:
mel-nik [20]3 years ago
4 0
C is the correct answer I think
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This is how platinum appears in the periodic table.A purple box has P t at the center and 78 above. Below it says platinum and b
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Answer:

3.) 195

Explanation:

Because platinum is 195.079 amu (its on the periodic table)

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Please help !!
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Answer:

State the major concepts behind the kinetic molecular theory of gases.

Demonstrate the relationship between kinetic energy and molecular speed.

Apply the kinetic molecular theory to explain and predict the gas laws.

Explanation:

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An electrode has a negative electrode potential. Which statement is correct regarding the potential energy of an electron at thi
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Answer:

C. An electron at this electrode has a higher potential energy than it has at a standard hydrogen electrode.

Explanation:

The standard hydrogen electrode (SHE) is used to measure the electrode potential of substances. The standard hydrogen electrode is arbitrarily assigned an electrode potential of zero. Recall that electrode potentials are always measured as reduction potentials in electrochemical systems.

For an electrode that has a negative electrode potential, electrons at this electrode have a higher potential energy compared to electrons at the standard hydrogen electrode. Electrons flow from this electrode to the hydrogen electrode.

On the other hand, a positive electrode potential implies that an electron at this electrode has a lower potential energy than it has at a standard hydrogen electrode. Hence electrons will flow from the standard hydrogen electrode to this electrode.

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How does adding a non-volatile solute to a pure solvent affect the boiling point of the pure solvent?
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The correct answer is the second statement. The solvent will have a higher boiling point. Adding a non-volatile solute to a pure solvent will increase the boiling point of the solvent. This solution exhibit colligative properties. Colligative properties depend on the amount of solute dissolved in a solvent. These set of properties do not depend on the type of species present. 
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