Answer:
oxygen is an element because it is a pure substance which cannot be split into simpler substances by chemical means
Answer:
=8 atoms
Explanation:
In (NH4)2C2O4 there are four moles of Hydrogen in the compound (NH4), but there two molecules of (NH4) in this compound. That's what the 2 in (NH4)2 means, so multiply 4 x 2 = 8.
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The original results have not been replicated consistently and reliably.
Answer:
B I have taken the quiz already 90%
