A compound is a substance that can be separated into simpler substances only by chemical means.
the answer is actually 118 look it up
Answer:
So, a cell, in easiest terms, is "the building blocks of life". Without cells, humans, plants, animals, and anything else that has a cell would not be able to survive. Cells are extremely important to our bodies. Whereas a Cell Membrane is an organelle inside a cell. The Cell Membrane's job is to provide protection for the cell, as well as deciding which substances can enter and exit the cell.
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The formula C2H4 can be classified as both a molecular formula
and an empirical formula. The answer is number 4.
