Information that tells why or how something happens is (a) :

A sample of oxygen gas has a volume of 27.3 mL at 294 K. At what temperature would the gas have a volume of 40.0 mL

Consider the following unbalanced redox reaction: NO3 - → NO How many water molecules are needed for balancing?

Which is a non-polar molecule? A. Hydrogen Chloride (HCI) B. Oxygen Difluoride (OF2) C. Sulfur Hexachloride (SF6) D. Hydrogen Cyanide (HCN) E. Trifluoromethane (CHF3)

Calculate the density of a sample of 1.00 mole of NH3 at 793mmHg and - 9.00 C

Ethane and acetylene are two gaseous hydrocarbons. Chemical analyses show that in one sample of ethane, 2.65 g of carbon are combined with 0.665 g of hydrogen, and in one sample of acetylene, 4.56 g of carbon are combined with 0.383 g of hydrogen.

Which of the following statements about chemical formulas is FALSE? A) The subscripts represent the relative number each type of atom in the compound. B) The subscripts represent the relative mass of each type of atom in the compound.

The lowest possible concentration of free hydrogen ions is represented by a ph value of

Diseases that are inherited are caused by

Why do many metal ions produce acidic solutions when dissolved in water?

Which property of potential energy distinguishes it from kinetic energy? a. mass b. position c. force d. work and power