How many photons are produced in a laser pulse of 0.682 J at 649 nm?

onsider the following cyclic process carried out in two steps on a gas: Step 1: 42 J of heat is added to the gas, and 14 J of expansion work is performed.

What is the molality of sodium chloride in solution that is 13.0% by mass sodium chloride and that has a density of 1.10 g/ml?

What type of bonds are these? 1) Calcium Carbonate 2) Aspirin 3) Acetic Acid 4) TNT 5) Pyrite 6) Magnesium hydroxide 7) Sucrose

What do we call atoms of the same elements with different mass numbers?

Why doesn't light get absorbed

If i burn steel wool inside a closed jar or bottle will the oxygen be completly gone

700 grams of glucose reacted fully with oxygen How many moles of gas will be created

The uranium used for nuclear fuel exists in nature in several minerals. Calculate how many moles of uranium are in 8.00 moles of the following: 1. carnotite, K2 (UO2) 2 (VO4) 2 • 3H2O 2. uranophane, CaU2Si2O11 • 7H2O 3.

What is the chemical formula of a compound that is composed of the ions Ca2 + and br-

What element is likely to form an ionic compound with chlorine?