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An element + an element = ???
nitrogen
metal
a compound
metalloids and metals
compounds
copper
both He and O2
two elements combined chemically to form a new compound.
If an element conducts electricity, is a solid and is malleable and ductile. The element is a
nitrogen
metal
a compound
metalloids and metals
compounds
copper
both He and O2
two elements combined chemically to form a new compound.
Which of the following are likely to have luster?
nitrogen
metal
a compound
metalloids and metals
compounds
copper
both He and O2
two elements combined chemically to form a new compound.
Which of the following most likely conducts electricty?
nitrogen
metal
a compound
metalloids and metals
compounds
copper
both He and O2
two elements combined chemically to form a new compound.
What is formed when two elements combine chemically?
nitrogen
metal
a compound
metalloids and metals
compounds
copper
both He and O2
two elements combined chemically to form a new compound.
Which of the following substances is an element?
nitrogen
metal
a compound
metalloids and metals
compounds
copper
both He and O2
two elements combined chemically to form a new compound.
Which of the following is not one of the most abundant elements of solid Earth?
nitrogen
metal
a compound
metalloids and metals
compounds
copper
both He and O2
two elements combined chemically to form a new compound.
When Hydrogen (H) combines with Clorine (Cl) to form HCl, what has happened?
nitrogen
metal
a compound
metalloids and metals
compounds
copper
both He and O2
two elements combined chemically to form a new compound.
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