Which one of the following is a pure substance? 1. milk2. Concrete3. Wood 4. Salt water5. Elemental copper

Convert 36509 int scientific notation

Why airbags always fill evenly?

A fixed, single pulley that is used to lift a block does which one of the following? a. doubles the force required to lift the block b. decreases the force required to lift the block c.

Will soapy water evaporate faster than water

What is the poh of a solution with oh - = 9.0 x 10-7?

How was helium first discovered?

When is alpha particle emission most likely to occur? A. When the nucleus has more than 83 protons. B. When the ratio of neutrons to protons in the nucleus is too high to be stable. C. When the nucleus has a mass of more than 83 amu. D.

Researchers used a combustion method to analyze a compound used as an antiknock additive in gasoline. A 9.394 mg sample of the compound yielded 31.154 mg of carbon dioxide and 7.977 mg of water in the combustion.

The formula for binary ionic compound formed between cesium and fluorine

If the mass of a material is 76 grams and the volume of the material is 16 cm3, what would the density of the material be? g/cm3