12. Which of the following is a combustion reaction?

A. CH4 + 202

+ CO2 + 2H2O

B. 2Fe + 3Cl2 → 2FeCl3

C. Ag + KNO3 → AgNO3 + K

D. 2H20 → 2H2 + O2

An unsaturated solution is formed when 80 grams of a salt is dissolved in 100 grams of water at 40. This salt could be?

What happens to electrons during an oxidation reduction reaction

15. How are molecules and moles different from mass?

To obtain 890 liters of a production line solution that contains 2 percent of chemical a a sample of a solution containing 12 percent of chemical a and another containing 1 percent of chemical a are mixed how many liters of the 12 percent sample are

The decayed organic material that gives soil its dark brown or black color is called A) clay. B) humus. Eliminate C) loam. D) silt.

Will an object with a density of 0.97 g/ml float or sink in water

Which subatomic particle contributes least to the mass of the atom? which subatomic particle contributes least to the mass of the atom? neutron electron proton all of these contribute equally?

2H2S (g) 2H2 (g) + S2 (g) Kc = 1.67 * 10 ^-7 at 800 C A 0.500 L reaction vessel initially contains 0.0125 mol of H2S at 800 C. Find the equilibrium concentrations of H2 and S2.

An atom has an atomic number of 9 a mass number of 19 and an electron configuration of 2-6-1 explain why the number of electrons in the second and third shells shows that this is in an excited state

How can a chemical reaction be sped up? Pack in more of the reactant to increase the_.