oscargonzalez1991
19.02.2022 •
Biology
The drug nicotine is a(n) because it competes for binding with acetylcholine at the nicotinic acetylcholine receptor.
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Ответ:
A gas is given off when two substances are mixed.
physical change: A copper rod is hammered into a thin sheet.
A solid forms when two clear liquids are mixed.
A matchstick changes color when it burns.
explanation
a physicals change vs chemical
physical change is like cutting, changing shape etc, it the molecules that make it and the chemicals of it stay same
chemical change when it chemically changed such as cooking meat