What is the percent by mass of a solution in which 60, of are dissolved in sufficient water to make 100 g of solution?

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.