The shape of a molecule is tetrahedral. How many lone pairs are most likely on the central atom?

zero

two

three

four

Which properties does the composition of atoms determine about a mineral? A. physical properties only B. chemical properties only C. both organic and inorganic properties D. both physical and chemical properties

C6h12o6 + 6o2 → 6h2o + 6co2 when you respire, your cells are undergoing a chemical reaction. glucose, one of the reactants, is being broken down or decomposed. what is one of the products of cellular respiration? a. c6h12o6 b. co2 c. h2 d. o2

What mass of silver chloride can be produced from 1.65 l of a 0.240 m solution of silver nitrate?

When a mixture of PH3, P2, and H2 comes to equilibrium at 873 K according to the reaction 2PH3 (g) ←-→P2 (g) + 3H2 (g) Kp = 398 at 873 K, where Pp2 = 0.414 atm and PH2 = 0.827 atm.

Calculate the solubility of o2 in water at a partial pressure of o2 of 120 torr at 25 ̊c. the henry's law constant for o2 at 25 ̊c is 1.3 x 10-3 mol/l atm. how do you expect the solubility to change if the temperature were decreased?

A group of the same species makes up a?

When the nonelectrolyte glucose is dissolved in water, the solution contains___.

Pure substance definition is?

What is the net ionic equation for the reaction ofFeCl3 and KOH in water?

How many total orbitals are within the 3s, 3p, and energy level?