4.) D
10.) C
12.) D
13.) D
14.) D
15.) D
Answer:
[H_3 O^+] = 1.0 ×10^-13
Explanation:
If we multiply the left side we get, 1e - 13. We add 13 to the right side while subtracting the remaining value from the left side (H3O+) than combine like terms. As you will get pH = 13.00
Answer:
Herbivores only eat plants . Remember HERBS are PLANTS.
Carnivores only eat meat. Remember CARNE = MEAT in Spanish.
Omnivores eat MEAT & PLANTS.
Explanation:
Differences are what they eat, similarities omnivores eat both.
Answer: There are 
atoms in 24 moles of Fe.
Explanation:
According to the mole concept, 1 mole of a substance contains 
atoms.
Therefore, atoms present in 24 moles of Fe are calculated as follows.
Thus, we can conclude that there are atoms in 24 moles of Fe.
Its C
a catalyst speeds up a reaction by offering the reaction an alternative reaction pathway with a lower activation energy
hope that helps
