A) mechanical
B) heat
C) electrical
D) chemical
E) kinetic
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) polar covalent bond
B) water molecule
C) hydrogen bond
D) hydrogen atom
E) oxygen atom
Correct Answer
verified
Multiple Choice
A) electrons are transferred from one atom to another.
B) the charge of the ion does not play a role in the bond.
C) only non-polar molecules are involved.
D) two hydrogen atoms share one pair of electrons.
E) a "sea of electrons" forms.
Correct Answer
verified
Multiple Choice
A) chloride ion
B) dissociation
C) water molecule
D) sodium ion
E) salt crystal
Correct Answer
verified
Multiple Choice
A) calcium,hydrogen,sodium,and potassium.
B) carbon,oxygen,magnesium,and zinc.
C) carbon,hydrogen,oxygen,and iron.
D) carbon,hydrogen,oxygen,and nitrogen.
E) carbon,sulfur,calcium,and potassium.
Correct Answer
verified
Multiple Choice
A) energy must be supplied for the reaction to occur.
B) the chemical reaction equalizes the potential energy levels.
C) energy is not a factor in the reaction.
D) energy has not been gained or lost.
E) energy is released by the reaction.
Correct Answer
verified
Multiple Choice
A) salt molecules.
B) polar molecules.
C) nonpolar molecules.
D) lopsided molecules.
E) None of these choices are correct.
Correct Answer
verified
Showing 161 - 168 of 168
Related Exams