***URGENT PLEASE Select all of the bases listed * Bleach
NaOH
H2SO4
HCl
Ammonia
HF

(if you are confused COMMENT it please! I don't want to have to keep repeating because people are answering that they are confused.

Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products

What is another way to determine mass times acceleration?

The molar mass of iron(fe) is 55.8 g/mol. what is the mass in grams of 2.25 moles of iron?