19) A 0.079 g sample of an unknown metal is dropped into hydrochloric acid and reacts to produce
66.0 mL of hydrogen gas at 22°C and 750 mm Hg. The vapor pressure of water at this temperature
is 18 mmHg. What is the unknown metal (X)?
2 X(s) + 6 HCl(aq) → 2 XCl3(aq) + 3 H2(g)
A) SC
B) Co
C) Fe
D) Al
E) Ga
Zu
Hai

22

step-by-step explanation:

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

my answer got deleted but it's a

step-by-step explanation:

look at the picture i have filled out a table for it. hope this .