How many electrons are in an electrically neutral atom of boron? 3 5 6 8

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate