Hot lead with a mass of 200.0 g of (Specific heat of Pb = 0.129 Jig'C) at 176.4°C was dropped into
a calorimeter containing an unknown volume of
water. The temperature of the water increased
from 21.7°C to 56.4°C. What volume of water is
in the calorimeter?
a. 11. 32 mL
b. 21.32 mL
C. 12.23 mL
d. 31.21 mL

A48 g piece of ice at 0.0 ∘c is added to a sample of water at 7.4 ∘c. all of the ice melts and the temperature of the water decreases to 0.0 ∘c. how many grams of water were in the sample?

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?