Which symbol represents a salt?
O CaCl2
O C6H12O6
O C2H2
O 02

Can someone me with 3 and 4 plz. this is for masteries test.

If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml

Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?