Answer:
B.
Explanation:
This is physical change as the popcorn has expanded in size.
Answer:
Welding and computer chips
<span>The rate of a chemical reaction can be increased by raising the temperature. </span>
Lowest is Hydrogen highest is <span>Beryllium
-HOPE THIS HELPED </span>
Answer:
A. (CH3)3C-I reacts by SN1 mechanism whose rate is independent of nucleophile reactivity.
Explanation:
We must recall that (CH3)3C-I is a tertiary alkyl halide. Tertiary alkyl halides preferentially undergo substitution reaction via SN1 mechanism.
In SN1 mechanism, the rate of reaction depends solely on the concentration of the alkyl halide (unimolecular mechanism) and is independent of the concentration of the nucleophile. As a result of this, both Br^- and Cl^- react at the same rate.
