How many moles of water (H2O) are present in a beaker containing 45.9 g H2O? Give your answer to the correct number of significant figures.

(Molar mass of water = 18.02 g/mol) 45.9 g H2O = mol H2O

What chemical element did hennig brand discover and what was he boiling down when he discovered it

Which of the following is equal to the number of particles in 36 grams of carbon-12? B. 3 moles A. 3:1 molar mass C. 3:1 mole ratio D. 1:3 molar volume

What is the Lewis acid in the following reaction? NH3 + BI3 → I3BNH3

What information does the complete ionic equation give

Mintu wants to increase the heat transfer between a metal iron and another piece of metal he wants to shape.

How many valence electrons are in atom of sulfur?

My sister needs this answered! Donald is creating an experiment to determine if fertilizer affects plant color. He makes this statement: "If each plant receives a different amount of fertilizer, then the plant's color intensity will change.

What would happen to life if earth were in a different location within the solar system

Substance that undergoes a change in a chemical reaction is a. a product c. a reactant. b. a chemical. d. an enzyme.

List the number of protons, neutrons, and electrons in Iodine-127. (atomic number is 53)