Chemistry Final

Chemistry Final

Assessment

Flashcard

Chemistry

10th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What property of alkali metals explains their relatively low melting points?

Back

Metallic bonds are weakest for metals with few electrons.

2.

FLASHCARD QUESTION

Front

What happens to the nucleus during radioactive decay?

Back

The nucleus disintegrates into a lighter and less stable nucleus.

3.

FLASHCARD QUESTION

Front

What conclusion can be drawn about the solubility of metal sulfates compared to metal chlorides?

Back

Metal sulfates are generally more soluble in water than metal chlorides.

4.

FLASHCARD QUESTION

Front

What does Dalton's Law state about the pressure of a mixture of non-reactive gases?

Back

The total pressure exerted by the mixture is equal to the sum of the partial pressures of individual gases.

5.

FLASHCARD QUESTION

Front

What type of reaction is characterized by the release of energy?

Back

Exothermic reaction.

6.

FLASHCARD QUESTION

Front

Define metallic bond.

Back

A bond formed by the attraction between positively charged metal ions and the electrons in a metal.

7.

FLASHCARD QUESTION

Front

What is the significance of electronegativity in chemical bonding?

Back

Electronegativity determines how strongly an atom attracts electrons in a bond.

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