Find the mass of 0.89 moles of Silicon?

i think it is true since you can test the answer and can use observations to complete it.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.