How much heat is needed to raise the temperature of 7g of water by 19oC?

In one experiment, the reaction of 1.00 g mercury and an excess of sulfur yielded 1.16 g of a sulfide of mercury as the sole product. In a second experiment, the same sulfide was produced in the reaction of 1.56 g mercury and 1.02 g sulfur.

A light ray hits a hard, opaque object. the angle at which the light ray bounces off the object depends on the smoothness of the surface. the material the surface is made of. the angle at which the light hits the surface.

Which of the following is considered a nonrenewable energy resource? wind energy solar energy energy from moving water energy stored in coal

In general, what is the effect of increased temperature on the solubility of a gas?

Voltaic cells produce a positive overall cell potential. What does this indicate?

You are on an alien planet where the names for substances and the units of measures are very unfamiliar. Nonetheless, you obtain 19 quibs of substance called skvarnick.

How do you know if an element is an ion?

Which gas is not a greenhouse gas, A methane, B Water Vapor, C, Carbon dioxide, D, Nitrogen, E, Ozone

A very small equilibrium constant means ... a. an equal amount of reactants and products c. more products b. more reactants d. system isn't at equilibrium

What is in a banana? give me specifics?!