A 1.20 gram sample of a hydrated salt is heated to a constant mass of. 80 gram. what is the percent of mass of water contained in the original sample

What subatomic particle is responsible for combining the atoms together to form a new substance?

Which statement about bases is incorrect? Select one: a. All bases contain hydroxide ions. b. All bases taste bitter. c. All bases turn red litmus paper blue. d. All bases feel slippery.

What is the molar mass of Cu3 (PO4) 2?

martha needs to determine the density of gasoline she has determined the mass to be 1250g and the volume to be 1500ml what is the density of the gasoline

Solve each problem give your answer to the correct number of significant figures and in scientific notation a. 8.73 meters • 2.22meters b. 8432 meters divided by 12.5 c. 35.2 seconds • 1minute/60seonds

Enter your answer in the provided box. A sample of an unknown gas effuses in 14.5 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.42 min. What is the molar mass of the unknown gas

What volume will 0.710 moles of nitrogen gas occupy at STP?

4) Acompound has an empirical formula of Na2co3, and a molar mass of 3.18g/mol. Find its molecular formula.

How many molecules of glucose, C6H12O6, can be "burned" biologically when 283.2 grams of oxygen is a available?

Why does acids that has been accidentally spilled on a book cause the colour of the book cover and the ink to change?