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Chemistry, 23.09.2021 20:20 fallenangelsayshush

3 At room temperature and pressure (rtp), which of the substances listed below is:
a a solid element?
b a liquid element?
ca gaseous mixture!
d a solid mixture?
e a liquid compound?
f a solid compound?
Bromine, carbon dioxide, helium, steel, air, oil,
marble, copper, water, sand, tin, bronze, mercury,
salt.

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3 At room temperature and pressure (rtp), which of the substances listed below is:
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