in the combustion of hydrogen gas, hydrogen reacts with oxygen from the air to form water vapor. if you brun 31.0 g of hydrogen and produce 277 g of water, how much oxygen reacted?

Due to lower atmospheric pressure at high altitudes, water boils at 92°C instead of 100°C. How will this difference affect cooking times?

Single-replacement reactions can take place with nonmetals. For this question, assume that A and C are nonmetals and B is a metal. Which general equation shows one nonmetal replacing another nonmetal in a compound?

In the space-filling model, what determines the relative sizes of the spheres?

Quantum number of boron

What life process can plant cells carry out that a cell from another kind of multi-cellular organism cannot?

To what chemical reaction class does this reaction belong? 2 mg (s) + o2 (g) 2 mgo (s)

Which best illustrates how particle arrangement changes when solids change into liquids

Express in scientific notation (6.0x10^4) (3.1x10^-1)

How do you measure the mass of a liquid?

Given the following information, calculate the mass for B-11. B-10 has a natural abundance of 19.9 percent, while B-11 has a natural abundance of 80.1 percent. The mass of B-10 is 10.013 amu.