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Test Description: Ch2 Test

Instructions: Answer all questions to get your test result.

1) The space surrounding the nucleus of an atom contains

Aelectrons Bneutrons Cions Dprotons

2) Which one the following makes up a molecule of water?

Aone atom of Hydrgen and one atom of Oxygen Btwo atoms of hydrogen and one atom of oxygen Cone atom of sodium and one atom of chlorine Done atom of hydrogen and 2 atoms of oxygen

3) When salt is dissolved in water, water is the

Asolvent Bsolution Creactant Dsolute

4) A substance with a pH of 6 is called

Aneither an acid or a base Bboth acid and a base Ca base Dan acid

5) The three particles that make up an atom are

Aprotons, neutrons, and isotopes Bprotons, neutrons and electrons Cpositives, negatives and elctrons Dneutrons, isotopes and electrons

6) The nucleus is makde of

Aprotons and neutrons Belctrons and neutrons Cprotons, electrons, and neutrons Dprotons and electrons

7) A covalent bond is formed as the result of

Atransferring electrons Btransferring protons Csharing electrons Dsharing prontons

8) A soloution is a(an)

Aevenly distributed mixture of 2 or more substances Bcombinations of two or more liquids Cbreaking of a chemical bond Dchemical reaction

9) Suspensions are mixtures

Ain which the components are evenly distributed throughout the solution Bneither a or b Cof water and nondissolved material Dboth a and b

10) Which of the following terms describes a substance formed by the combination of two or more elements in definite proportions?

Aenzyme Bnucleus Cisotope Dcompound

*select an answer for all questions

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