What two quantities are conserved in every chemical reaction?

a. moles and mass

c. volume and mass

b. mass and atoms

d. moles and atoms?

In which position would a person on earth see a full moon

What solute particules are present in an aqueous solution of this compound HCOOH

Tell how a voltaic cell works. Be sure to mention the various parts of the voltaic cell and what they have to do with how it works.

How much would the temperature of 275 g of water increase if 36.5 kj of heat were added?

You are playing tug of war. You pull the rope with a force of 85N to the left and your friend pulls the rope with a force of 85N to the right. What is the net force on the rope A. 200N to the right B. 200N to the left C. 0N D. 100N to the right

Iodine pentafluoride gas reacts with iodine fluoride gas producing iodine heptafluoride gas and iodine gas. What is the maximum number of grams of iodine gas that can be produced from a reaction of 10.0 g of iodine pentafluoride with 11.

What evidence of a chemical reaction might you see in dropping an Alka-Seltzer tablet into a glass of water?

State hess's law. how is it used

When the name of a molecule ends in - ose, the molecule is a

How many moles are in. 12 grams of gold.