Calculate the density of a substance that has a mass of 250 g and a volume of 50. ml.

A potassium atom can achieve a stable octet by A. gaining one electron. B. sharing one electron. C. losing one electron. D. losing seven electrons.

A car is traveling down the highway and is pulled over by the police officer, predict what changes must be made to the graph to reflect this situation

Which statements accurately describe soap? Select one or more: check_boxSoaps should be weakly alkaline in solution. check_box_outline_blankSoaps react with ions in hard water to create a precipitate.

5.080 x 1016 molecules of hydrogen (gas) to moles

What is the mole fraction of hcl in a 4.50 m aqueous hcl solution?

The ionic naming rules

What is the PH of a solution whose [H+] is 0.0007

What was concluded about the structure of the atom as the result of the gold foil experiment? (1) A positively charged nucleus is surrounded by positively charged particles. (2) A positively charged nucleus is surrounded by mostly empty space.

Andre is predicting the products of chemical reactions. In one reaction, a hydrocarbon is the only reactant. What is the best prediction and explanation of this reaction? Two new compounds form as the hydrocarbon undergoes a synthesis reaction.

What evidence is there that electrons move around in definite pathways around the nucleus? What evidence is there that electrons m