How many moles are in 458 grams of Na2SO4

A cylinder, with a piston pressing down with a constant pressure, is filled with 2.00 moles of a gas (n1), and its volume is 50.0 L (V1). If 0.

What is the concentration of hydronium and hydroxide ions in pure water?

What is the mass in grams of one mole of many of any substance known as

Which conclusion could be made from Ernest Rutherford's gold foil experiment? a. Atoms are made up of mostly empty space. b. Atoms are mainly solid and block alpha particles. c. The volume of the nucleus is large compared to the rest of the atom. d.

A plant grows three inches in a month. Why is this a physical change?

Which of the following is NOT a chemical reaction? a. ice melts from water b. ammonia breaks up into nitrogen and hydrogen c. hydrogen and oxygen combine to make water

Which type of atom is expected in the products of this chemical reaction? C6H12O6 + 6O2? A. boron (B) B. lithium (Li) C. oxygen (O) D. helium (He)

How many moles of caco3 are there in an antacid tablet containing 0.515 g caco3?

Consider a sample of helium and a sample of neon, both at 30.0°C and 1.5 atm. Both samples have a volume of 5.0 liters. Which statement concerning these samples is not true? Consider a sample of helium and a sample of neon, both at 30.0°C and 1.

Select all the statements that are true about electron configurations: A) The electron configuration of an atom describes the energy of electrons in the atom.