2. what is the formula weight of (nh4) 2so4? 118 amu 116 amu 100 amu 132 amu

An elephant eats about 500 pounds of grass and leaves every day. there are 2 african elephants and 3 asian elephants living in the city zoo.

What is the transfer of energy by electro magnetic waves?

The atomic radius of main group elements generally increases down a group because

Write the common names of trichloromethane and one of their uses?

What volume (in L) of a 4.13M lithium nitrate solution would be needed to make 195mL of a 1.05M solution by dilution?

The energy needed to get a reaction started is the a. enzyme energy. b. activation energy. c. catalyst energy. d. chemical energy.

A solution is made by dissolving 8.2 g of NaOH in approximately 450 mL of water in a volumetric flask. The solution becomes quite warm, but after it is allowed to return to room temperature, water is added to total 500 mL of solution.

What is the molarity of an aqueous solution containing 40.0 g of glucose (C6H12O6) in 1.5 L of solution?

List at least 3 factors that can influence a body's temperature after death.

The mass of a 2.0 centimeter3 sample of a substance is 3.2 grams. Calculate the density of the substance. Type the correct answer in the box.