Earth Science Geology, the Environment, and the Universe

Section 2: Combining Matter

Self-Check Quizzes-English

1
Why is a water molecule often shown as having a bent shape?
A)It occurs in one of three states.
B)It's a compound.
C)It has ionic bonds.
D)It's a polar molecule.
2
According to the table, which material tested underwent a chemical change when vinegar was added?
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A)baking soda
B)sugar
C)distilled water
D)cornstarch
3
Which bond is formed when electrons are shared between atoms?
A)an ionic bond
B)a covalent bond
C)a compound
D)a chemical reaction
4
What type of bond is shown in the figure?
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A)hydrogen
B)ionic
C)metallic
D)covalent
5
Bases produce __________ in solution.
A)helium ions
B)hydrogen ions
C)oxygen ions
D)hydroxide ions
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