Sawaal
1
Q:

A sample of matter must be copper if

A) atoms in the sample react with oxygen B) the sample can conduct electricity
C) each atom in the sample has 29 protons D) the sample melts at 1768k

Answer:   C) each atom in the sample has 29 protons



Explanation:

A sample of matter must be copper if each atom in the sample has 29 protons.

Subject: Chemistry
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