Alpha particles are most a. lithium atoms b. gold atoms c. helium atoms d. beta particles

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.

Rank substituents in order of their priority when assigning the e or z label to an alkene. i, ch2i , h, ch2ch2cl, f