How many moles are there in 2.35 grams of H2O?

What is the molar mass of H3PO4? (Molar mass of H = 1.0079 g/mol; P = 30.974 g/mol; O = 15.999 g/mol)

Protein in foods are broken down into amino acids through what process? Explain your answer. a. adsorption b. elimination c. chemical digestion d. mechanical digestion

You need 2.5 moles of aluminum for an experiment. How many atoms of aluminum is this?

physical changes don't change chemical identity, but chemical reactions do change the chemical identity of something: true or false

A sampling of 30 million particles coming from an exhaust vent contained 60 sulfur dioxide molecules. What is another way of expressing this concentration of sulfur dioxide using this information?

Identify each statement as true or false. Rewrite false statements to make them correct. Sedimentary rock can be formed from changes in igneous rock, but igneous rock cannot be formed from changes in sedimentary rock.

What is the total number of atoms in this formula? NaHCO3

Which of the following are electrostatic interactions of permanent dipoles in polar molecules? A. Ion-dipole forces B. Hydrogen bonding C. Dipole-dipole forces D. London dispersion forces

Assuming the octet rule is obeyed, how many bonds and how many lone pairs will atoms of oxygen (o) and nitrogen (n) have in order to have formal charges of + 1?

The ksp of cobalt (ii) carbonate, coco3, is 1.0 * 10-10. calculate the solubility of this compound in g/l.