If a 3 kg moon rock is moved from the moon to the earth does the mass of the rock change

If your front lawn is 15.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1150 new snow flakes every minute, how much snow (in kilograms) accumulates on your lawn per hour? Assume an average snow flake has a mass of 2.20 mg.

How many grams of CO2 will be produced from 2.5 g of C3H8 in the following reaction?

Water can dissolve other substances. which factoer best contributes to this property of water

A sample of seawater contains 1.3g of calcium ions in 3,100kg of solution. what is the calcium ion concentration of this solution in units of ppm?

The analysis of a compound gives the following percent composition by mass: C: 52.14 percent; H: 9.946 percent; S: 12.66 percent; O: 25.26 percent. What is its molecular formula given that its molar mass is 253.4 g?

For the reaction a+2b→c under a given set of conditions, the initial rate is 0.180 m/s. part a what is δ[b]/δt under the same conditions?

What is the number of oxygen atoms in the ring portion of the haworth structure of glucose?

Explain what it means by a balanced chemical equation

Which of the following compounds is not ionic? a. nai b. cacl2 c. co2 d. na2o

Why does sugar mix more in hot water than in cold water?