A sample of sand has a mass of 50.1 g and a volume of 32.7 cm'. Calculate its density in grams per cubic centimeter (g/cm²).

10. according to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants?

In this reaction n2o4(g)→2no2(g) what changes in color would you expect as pressure is increased at a constant temperature

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?