Answer:
D
Explanation:
Oxygen is the 8th element in the periodic table. This means that oxygen has 8 protons and 8 electrons. In order to get the number of neutrons you take the atomic weight in this case 15.9999~16 and you subtract it by the number of protons (16-8).
Answer:
C
Explanation:
75 mile shallow flat area just off coastlines
(3.5mol)(24.106 g/1mol c6h6) =84.371 g C6H6
Answer:
B is a precipitation reaction.
Explanation:
This is because a precipitation reaction is when a solid is made from the combination of cations and anions in a solution to create a solid.
0s to 15s: constant speed/zero acceleration
15s to 40s: constant gradient, therefore constant deceleration