Mgso4 how many of each atom exists in a molecule of epsom salts

Storms in the South Pacific can create waves that travel all the way to the California coast, which are 12,000 km away. How long does it take them if they travel at 15.0 m/s?

Quantum number of boron

An unknown radioactive substance has a half-life of 3.20 hours. If 16.5 g of the substance is currently present, what mass A0 was present 8.00 hours ago

If 0.545J of heat leads to a 0.892 degree C change, what mass of water is present?

In order to prepare a standard 1.00 m solution of oxalic acid from h2c2o4 · 2h2o (126.07 g/mol), 7.564 g of oxalic acid dihydrate should be dissolved in

2. What is the name of the system of measurement used by the United States?

A compound is 12.7% Al, 19.7% N, and 67.6% O. Determine its emperical formula.

What can you conclude about the importance of marine ecosystems to global food webs and the biosphere?

The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year-1. what fraction of the tritium initially in a sample is still present 30 years later?

Fusion and radioactive decay are both types of nuclear processes. What does nuclear mean in this context