How many carbon atoms are represented in 3ch3ch2o? 2 4 6 8
6 Explanation: 1) The structure shown is: 3CH₃CH₂O 2) The molecule is CH₃CH₂O. The chemical formula is CH₃CH₂O. The subscripts indicate the number of atoms of the corresponding atom in each molecule. So there are 1 + 1 = 2 C atoms, 3+ 2 = 5 H atoms and 1 O atom. 3) The number in front of the molecule is the coefficient. It’s 3, and that indicates the number of molecules. There are therefore 3 molecules, which means that you have 3 times more atoms than calculated previously. It is 3×2 = 6 C atoms, 3×5 = 15 H atoms and 3×1 = 3 O atoms. So the number of carbon (C) atoms in 3 molecules is 6
H H | |3 x H – C – C – O – H | | HH
2 hydrogen, 1 oxygen, so the number on the right means the amount of what is on the left. so it looks like 2, because C2, but look at 3 at the start. it means 3 (c2h4) so 6 carbons, 12 hydrogen the ratio of c2 to h4 does not change is always 1:2. but the 3 on the front is a different number related to how much you have
C) 6. Add the coefficients
The answer to this problem is 4