If you start with 5 molecules of o2 in the reaction how much mg will you need?

a. 4

c. 8

b. 5

d. 10

How is electronegative related to covalent bonding?

Describe the best way Ryan can increase the rate of dissolving of lead (II) chloride in a solution. A) Increase the temperature of the water. B) Increase the concentration of the salt. C) Increase the particle size of the solute.

A chemist reported that 100 gallons of gas were available in a laboratory which property of the gas to the chemist report? A. Length B. Mass C. Temperature D. Volume

A mixture was found to contain 1.05g of sio2, 0.69g of cellulose, and 1.82g of calcium carbonate, what percentage of calcium carbonate is in the mixture

86.1 g of nitrogen reacts with lithium, how many grams of lithium will react?

If you start with 4 moles of iron and 3 moles of oxygen to produce iron oxide, what is the limiting reagent? (You will need to balance the equation first.) Fe + O2 - > Fe2O3

Is burning wood a physical change

A gas is located inside a closed container. if the gas is allowed to occupy more volume inside the container, what will happen to the pressure? (note: there is no gas added to the container.)

An open-end manometer containing mercury was connected to a vessel holding a gas at a pressure of 767 torr. The atmospheric pressure was 724 torr. What is the difference in the heights of the mercury, expressed in cm?

When does raising the temperature of a gas increase its pressure? A. temperature B. volume C. number of particles D. pressure