If a student measured an object’s density to be 2.70 g/mL, 2.32 g/mL, 2.12 g/mL and 3.88 g/mL then his results would considered The object’s actual density is 3.50 g/mL A. Accurate and precise

B. precise but not accurate

C. Neither accurate nor precise

D. Accurate but precise

What is the mass of phosphorous in a 51-kg person

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.