Which tool would you use to measure how long it takes a toy car to go down a ramp

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Find the ratio of the effusion rate of hydrogen gas to the effusion rate of krypton gas.

What is the Ka of a 1.5 M solution of HA that has a pH of 1.61

Why is strong bonds in reactant molecules associated with relatively slow rates of chemical reaction?

Two samples of sodium chloride were decomposed into their constituent elements. one sample produced 4.65 g of sodium and 7.16 g of chlorine, and the other sample produced 7.45 g of sodium and 11.5 g of chlorine.

Barium-131 is a radioactive isotope of the element barium used for gastrointestinal tract scans in doctors offices. Barium-131 has a half-life of 10 days.

The name for Na2 O in chemistry

What is the simplest alkane

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What are some reasons why the research should be put through a peer-review process?