Physical Science Ch 5: Question Preview (ID: 2762)

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The forces that hold different atoms or ions together are
a) electric currents b) nuclear forces c) physical bonds d) chemical bonds
Each molecule of table sugar C12H22O11 contains
a) 0 atoms of carbon b) 1 atom of carbon c) 6 atoms of carbon d) 12 atoms of carbon
Cases take up a lot of space because gas molecules
a) have weak chemical bonds b) are not attracted to one another c) contain very few atoms d) have a small molar mass
Covalent bonds are formed between
a) ions b) metal atoms c) nonmetal atoms d) compounds
Copper is a good conductor of electricity because its electrons
a) are positively charged b) can move from atom to atom c) have a 2- charge d) are repelled by protons
The name of dinitrogen tetroxide tells you that this compound contains
a) two N atoms and two O atoms b) four N atoms and two O atoms c) two N atoms and four O atoms d) four N atom and four O atoms
When copper combines with oxygen to form copper (II) oxide, the charge of the copper ion is
a) Cu 1+ b) Cu 2+ c) Cu 3+ d) Cu 4+
It is possible for different covalent compounds to have the same emperical formula because empirical formulas represent
a) a total of all ionic bonds b) only the cations in the compound c) a model of the compound d) a ratio of atoms in the compound
How many chemical bonds can carbon form with other atoms?
a) 1 b) 2 c) 3 d) 4
Alkanes are hydrocarbons that contain
a) single covalent bonds only b) single or double covalent bonds c) carbon and oxygen only d) carbon, hydrogen, and oxygen
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