1. Determine the molecular formula for the following hydrocarbons:

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

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

If blood contains 150g of hemoglobin per liter of blood, how much hemoglobin would be contained in 10 ml of blood