how many milliliters of rubbing alcohol (isopropyl alcohol) weighs 500. grams? the density of isopropyl alcohol is 0.785g/mL

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

Can someone me with questions 15 to 17 plz.

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