Answer:
A. 2 Fe, 3 S and 12 O
B. 43 moles of H
C. 1.0×10² moles of C
Explanation:
A. Formula for iron (III) sulfate is Fe₂(SO₄)₃
This salt has 2 atoms of iron and 3 sulfates, so in total we have:
2 Fe, 3 S and 12 O
Pay attention to the subscripts
B. Formula for quinine is: C₂₀H₂₄N₂O₂
If we continue with the example before we can say that 1 mol of Iron (III) sulfate contains 2 moles of Fe, 3 moles of S and 12 moles of O
Then, 1 mol of quinine contains 24 moles of H
So 1.8 moles of quinine, may contain (1.8 . 24) /1 = 43 moles of H
C. 1 mol of quinine contains 20 moles of C
5.4 moles of quinine may contain (5.4 . 20) /1 = 1.0×10²
<u>(As the answer must be in 2 significant figures and the real answer is 108, I had to use scientific notation)</u>
Answer:
I believe its A
Explanation:
A molecule that has a symmetrical shape will be a nonpolar molecule.
Enzymatic reactions are usually reversible reactions, that is, the reaction can go forward and backward. In this kind of situation, the reactants and the products are not fully consumed and both the forward and the backward reactions are occurring simultaneously, thus the reaction can never reach equlibrum.
Answer:
the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
Explanation:
I'm thinking a hypothesis theory, form a guess and proceed to experiment your hypothesis, leading to a definate theory....
