________ compounds in fireworks are responsible for the observed green colors.
A) barium
B) strontium
C) calcium
D) copper
E) sodium
Correct Answer:
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Q101: Which periodic table group contains only metals?
A)8A
B)2A
C)6A
D)7A
E)5A
Q102: Which periodic table group contains only nonmetals?
A)8A
B)2A
C)6A
D)7A
E)5A
Q103: Which nonmetal exists as a diatomic solid?
A)bromine
B)antimony
C)phosphorus
D)iodine
E)boron
Q104: Which of the groups in the periodic
Q105: All of the following noble gases have
Q107: Which group 6A element is a metal?
A)tellurium
Q108: Which element would be expected to have
Q109: _ compounds in fireworks are responsible for
Q110: A nitride ion has a charge of
Q111: The element carbon exists in several forms
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