Answer:
2. CH4
5. C2H 6
Explanation:
there are only two organic compounds there.
hope it helps .
Answer:
C. The theory that states that all molecules are constantly moving
Explanation:
The Kinetic Molecular Theory states that all molecules are constantly moving.
A and B are wrong. There are no such theories.
D is wrong. Modern atomic theory describes the energy levels of electrons.
A.Sexual Reproduction
This is because the organism has more of a variety of traits it can inherit; the organism may have a higher chance for a genetic mutation occurring that would allow it to adapt
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Answer:
The molecular formula of the metal oxide is CuO
Explanation:
Molar mass 79.545 g/m belongs to CuO
This is the reaction:
2Cu(s) + O₂(g) → 2CuO (s)
2 mol of Cu produce 2 mol of CuO
Molar mass Cu = 63.5 g/m
Mass / Molar mass = 1.56 g / 63.5 g/m →0.0245 m
0.0245 mol of Cu produce 0.0245 mole of CuO
Molar mass CuO = 79.545 g/m
Mol . Molar mass = mass
0.0245 m . 79.545 g/m = 1.95 g