Using calories, calculate how much heat 32.0 g of water absorbs when it is heated from 25.0°C to 80.0°C.

A. 1.76 * 103 calories B. 1.08 * 104 calories C. 8.00 * 102 calories D. 2.56 * 104 calories

How many moles of MgCl2 are there in 343 g of the compound?

The model of the atom where the central core contains protons and neutrons surrounded by a cloud of electrons is best described as A) The Bohr model of the atom. B) The modern model of the atom. C) The plum pudding model of the atom.

A rock contains uranium 238 which has a half life of 4.5 billion years. if the rock is crushed and heated, the half life in urainium-238 will

How much ml of sulfur dioxide are in one cubic meter of air if the ppm (parts per million) of sulfur dioxide in one cubic meter of air is 0.010? I am not sure if what I did is right

Which of the following is NOT a subatomic particle contained in an atom? a. electron c. proton b. photon d. neutron

At what temperature will 2.40 moles of chlorine gas exert a pressure of 2.70 atm at a volume of 0.750 L?

A large sample of iron fillings has a mass of 102 grams. how many iron atoms are there

What is electron configuration

Is necessary in order for a hydrogen atom in a molecule to participate in a hydrogen bond?

A compound present in aft