20. · Stars in the universe A
are solid like planets.
B.
generate some form of energy.
C.
are approximately the same temperature,
D.
were all formed at approximately the same
time.

ASAP

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

Find the mass in grams of 1.37x1020 particles of h3po4

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.