Identify each number that is given in scientific notation.

2.5 * 105 mL =

-1.8 * 1010 =

4.7 * 10-3 =

Barium can be analyzed by precipitating it as BaS04 and weighing the precipitate. When a 0.713-g sample of a barium compound was treated with excess H2S04, 0.5331 g of BaSO4 formed.

A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec2. What is the mass of the object? A) 5 m/sec2 B) 50 kg C) 1250 N D) 0.02 kg

How many moles of O2 will be formed from 1.65 moles of KCIO3? (2KClO3->2KCl + 3O2)

What do acids and bases have in common? A. They are both found in many foods. B. They are both commonly used as cleaners. C. They are both corrosive and can burn skin. D. They both have pH values lower than 7.

A scientific law is the explanation of multiple scientific theories. True False

What is the molar mass, in grams, of a mole of an element equal to?

Isopropyl alcohol (C3H8O) is a common solvent used for cleaning and disinfectant purposes. Its mass spectrum is shown below.

How is an unsaturated fat converted to into a saturated fat?

Is hydrofluoric acid stronger than acetic acid?

How much energy does an electric hair dryer use if it draws 8.3 amps of current when using 120 volts for 5.0 minutes?