Identify the mole ratio that can be derived from the following balanced chemical reaction: 4 Fe + 3 O2 - - > 2 Fe2O3 a. 4 mol Fe/3 mol O2 b. 3 mol Fe/2 mol Fe2O3 c. 3 mol O2/3 mol Fe2O3 d. 2 mol O2/3 mol Fe2O3

Towards what are the alpha particles being directed?

What is going to happen to the volume of a gas that is put under MORE pressure while keeping the temperature constant? A) The volume will increase. B) The volume will decrease. C) The volume will fluctuate. D) The volume will remain constant.

Given [OH-] = 5.5 x 10-10M Find: [H3O+] and pH Is this acidic, basic or neutral?

A 2.06g sample of agno3•xh2o is dissolved in an aqueous solution of excess nacl. The resulting agcl precipitate is filtered off and is found to have a mass of 1.32 g. What is the value of x in agno3•xh2o?

The elementary reaction 2 H 2 O (g) - ⇀ ↽ - 2 H 2 (g) + O 2 (g) 2H2O (g) ↽--⇀2H2 (g) + O2 (g) proceeds at a certain temperature until the partial pressures of H 2 O, H2O, H 2, H2, and O 2 O2 reach 0.0500 atm, 0.0500 atm, 0.00150 atm, 0.

Classify each substance as a pure substance or a mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogeneous or heterogeneous. a. Sweat b. Carbon dioxide c. Aluminum d. Vegetable soup

Which describes energy changes during nuclear fission? A very large amount of energy is produced from a tremendous mass. EEUU A very large amount of energy is produced from a very small mass. G .

For 2H2 + O2 → 2H2O: 4 moles of H2 will react with moles of O2 to produce moles of H2O

Rutherford's experiment showed that subatomic particles a. are the same size and shape as the atom. b. don't take up most of the space in an atom. c. all have similar sizes and characteristics. d. do not influence the behavior of an atom.

Why are electrolytes important in your body? Do you need to drink Gatorade to get them?