A chemist is using a solution of HNO3 that has a pH of 3.75. What is [OH - ] for the solution?

The floor of heavier rock under the oceans is composed of

A chemist is looking at an electrically neutral atom that has three valence electrons. If she knows the element is a metalloid, which one (or ones) is it?

The molar mass of oxygen gas (O2) is 32.00 g/mol. The molar mass of C3H8 is 44.1 g/mol. What mass of O2, in grams, is required to completely react with 0.025 g C3H8? 0.018 0.034 0.045 0.091

Electric charge is what? A. Kinetic Energy B. Radiation C. Discovery D. Electricity

Compare the formation of nacl from sodium and chlorine to the formation of co2

Explain why a balloon filled with O2 at room temperature collapses when cooled in liquid nitrogen where as balloon filled with He does not

The type of energy present in the bonds between atoms is

A mixture contains cobalt metal, copper metal, and tin metal. This mixture is mixed with nickel nitrate. Which metals, if any, will react? A. Cobalt only B. Copper only C. Tin only D. All 3

What are the common elements in a canyon?

How many carbons atoms are in propane?