A mixture of methane (CH4) and ethane (C2H6) of mass 13.43g is completely burned in oxygen. If the total mass of CO2 and H2O produced is 64.84g, calculate the fraction of CH4 in the mixture.

How many grams of Al were reacted with excess HCl if 2.34 L of hydrogen gas were collected at STP in the following reaction2Al + 6HCl - -> 2AlCl3 + 3H2

Lance Armstrong can ride his bicycle at speeds of 15m/s. If he is traveling at this speed, how long will it take him to travel 81.9 mmeters?

What major appliances uses the most energy? A dishwasher B refrigerator C dryer

A weak base is added to water. Which information is required to find the strength of its conjugate acid?

What is the kinetic energy of a 2,000kg boat moving at 5 meters per second?

The main source of phosphorous is in: rocks water plants the atmosphe

To what part of a plant does the stem sliver water and nutrients

You place a balloon in a closed chamber at STP. When the balloon doubles in size, what happens to the chamber pressure? A.) The pressure stays the same B.) The pressure doubles C.) The pressure reduced by one half

2K3N + 3CaCrO4 → Ca3N2 + 3K, CrO Give the formula for the second reactant: How many potassium atoms on the reactant side: How many oxygen atoms on the product side?

Why does aluminum most often have an oxidation state of + 3