Dalton's atomic model states that all atoms of a given element are identical in mass and properties. Is this a correct statement now? How is this postulate of Dalton's theory related to isotopes?

How many molecules of sucrose c12h22o11 are there in 454 grams of sucrose

Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.

The molar mass of cu is 63.55 g/mol. the number of grams of cu produced in this reaction is