Jiya and Teena performed the following experiment. Jiya placed an iron nail in copper sulphate solution in test tube (a) whereas Teena placed a copper nail in iron sulphate solution in test tube (b). Write the observations of the two experiments. Represent both the reactions by means of chemical equations

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt

Which statement best describes isomers? a. isomers are alcohols that have the same functional group. b. isomers have at least one carbon-carbon double bond. c. isomers have the same molecular formula but different structural properties.

Drag each pressure unit with the corresponding number to describe standard atmospheric pressure