You combine 212.56 grams of hydrogen gas with 600.086 grams of oxygen. What would be the mass of the resulting material after the chemical reaction has taken place?

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

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.