Answer:
B
Step-by-step explanation:
-The balanced chemical reaction of oxygen and water is written as:

-You notice that 2 moles of hydrogen gas reacts with one mole of oxygen gas to form 2 moles of water
-Hence, the correct choice is B
Answer:
Its E c;
Step-by-step explanation:
Answer:
U CAN'T SOLVED IT BECAUSE IT HAS A VARIABLE AND A NUMBER U CANNOT COMBINED THEM
Answer:
(g o f)(x) =
(not simplified)
Step-by-step explanation:
(g o f)(x) = g(f(x))
g(x) =
f(x) = 
g(f(-5)) = g(
=
= 
g(-170) =
= 
Answer:
a: 12 cm
b: I think it's 2.5 cm but someone might have to double check that
Step-by-step explanation: