The idea that all living things are made up of cells is considered scientific law. This means the idea
has been tested with similar results at least twice.
is supported by scientific consensus and a large amount of evidence.
has been rejected only once by the scientific community.
Which coefficient is needed in front of NaNO3 to balance the equation Na2S + Zn(NO3)2 → ZnS + _NaNO3?
Which most likely indicates a chemical change has occurred?
a solid melting and becoming a liquid
a green liquid becoming a red liquid
a liquid freezing and becoming a solid
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