O2 + ch4 co2 + h2o what would be the coefficient of the diatomic oxygen molecule in the balanced reaction?

a. 1

b. 2

c. 4

d. 6

Given the reactant side of the total ionic equation for the neutralization reaction of ammonium hydroxide (NH4OH) with hydrochloric acid (HCl), write the total ionic equation (also known as the complete ionic equation) by entering both the reactant

What is the specific heat of a substance if 1560 cal are required to raise the temperature of a 312-g sample by 5 degrees celsius? A) 0.033 cal/g*C B) 0.33 cal/g*C C) 0.99 cal/g*C D) 1.33 cal/g * C

Hydrogen bonds are A) individually strong, but collectively weak. B. individually stronger than a single covalent bond. C. individually weak, but collectively strong. D. individually stronger than a double covalent bond.

The element magnesium has significantly fewer protons and neutrons than gold. If you were to use MgMg in place of AuAu in the Rutherford experiment, how would you predict the results from the experiment to change?

Nitric acid in acid rain forms when gaseous nitrogen dioxide pollutant reacts with gaseous oxygen and liquid water to form aqueous nitric acid. Write a balanced chemical equation for this reaction. Express your answer as a chemical equation.

True or false: Chemical reactions can be detected by the formation of a gas.

List some common liquids that you think are acidic or basic. For example, do you think orange juice is acid or base? Why do you think each liquid is an acid or base?

Given the equation 4Al + 3O2 - -> 2Al2O3 if 325 grams of Al2O3 are to be formed, determine the mass of aluminum that must be reacted with excess oxygen. Question 4 options: 101.77g Al 26.9g Al 171.80g Al 6.38g Al

Which statement describes the redox reaction that occurs when an object is electroplated? A. It is spontaneous and requires an electric current. B. It is spontaneous and produces an electric current. C.

How many grams are in 0.21mol sample of ethyl alcohol?