Which is a pure substance? a. mixture b. solution c. molecule plz me asap plz i need withis question so plz n i will make brainiest n i will rate 5 stars

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

What are the two major rules associated with polarity

Which is true about metals used for jewelry, such as platinum and gold? a. they have low flammability. b. they have low reactivity. c. they have high flammability. d. they have high reactivity.