A bowl of water is heated by 250°C. The amount of energy used to heat the water was 11,000 joules of energy. The specific heat of water is 4.184 J/g°C. What was the mass of the water that was heated?

In 2002, the rare earth elements mine in mountain pass, california was closed because

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease