Given the reaction:
Ca (s) + 2H20(1) + Ca(OH)2(aq) + H2(g)
When 40.1 grams of Ca(s) reacts completely with
the water, what is the total volume, at STP, of
H2(g) produced?
A. 44.8 L
B. 2.00 L
C. 22.4 L
D. 1.00L

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n

Determine the number of moles of air present in 1.35 l at 750 torr and 17.0°c. which equation should you use? n=pv/rt what is the number of moles present? ⇒ 0.056 mol a sample of n2 gas occupying 800.0 ml at 20.0°c is chilled on ice to 0.00°c. if the pressure also drops from 1.50 atm to 1.20 atm, what is the final volume of the gas? which equation should you use? v2= p1v1t2/p2t1 what is the final volume of the gas? ⇒ 932 ml these are the answers

Plz a person walks 1 mile every day for exercise, leaving her front porch at 9 am and returning to her front porch at 9: 25 am what was the total displacement of her daily walk a. 1 mile b. 0 c. 25 min d. none of the above