If you burn 42.5 g of hydrogen and produce 3.80 * 102 g of water, how much oxygen reacted?

How do you find the charge of an ion

The decomposition of in solution in carbon tetrachloride is a first-order reaction: The rate constant at a given temperature is found to be. If the initial concentration of is 0.200 M, what is its concentration after exactly 10 minutes have passed?

Which of the following is not a metal? A) Ca B) Se C) Zn D) Mn

What is the mass of an ink pen on a triple beam balance

A sealed container contains 0.10 moles of nitrogen gas and 0.20 moles of oxygen gas. If Temperature of the mixture is constant, which of the followimg is true a Molecular Masses of 2 gases are the same.

How many hydrogen atoms are in a cycloalkane with 8 carbon atoms?

How can a chemical reaction be slowed down?

The atomic number of an element is always the same as ___ A. The number of electrons B. The number of protons C. The number of neutrons D. The number of protons plus neutrons

Covalent bonds are formed when electrons are

Complete the chart. (Remember to enter a "0" if necessary.) Atomic Number: 3 1s: 2s: 2p: 3s: 3p: 4s: 3d: 4p: 5s: