A substance that forms a vapor is generally in what physical state at room temperature?

Which one has more weight a rusted iron or a pure iron.

Which statement best describes the conditions created by El Niño? Winds that normally blow to the west get stronger, waters off the coast of South America cool down, and upwelling increases, improving the nutrients in the water.

The behavior of real gases most closely resembles that of ideal gases under conditions of

In a similar analysis, a student determined that the percent of water in the hydrate was 25.3%. the instructor informed the student that the formula of the anhydrous compound was cuso4. calculate the formula for the hydrated compound.

a compound is found to have 46.67% nitrogen, 6.70% hydrogen, 19.98% carbon and 26.65% oxygen, what is the empirical formula?

1000ml of a gas is cooled from 500 K to 250 K, what is it's final volume? A. 250 ml B. 1000 ml C. 500 ml D. 750 ml E. 2000 ml

A reacton has a theoretical yield of 22.8g. When the reaction was carried out, 15.1g of the product was obtained. What is the percent yield?

Which of Newtons law's is sometimes expressed as "for every action there is equal and opposite reaction"

Provide a general comparison of the empty space in a solid with that in a liquid as well as

Which of the following are chemicals? A. clothing B. food C. fuels D. all of the above