A student measured another sample that was aluminum and found it had a mass of 8.1 g and a volume of 3 mL. What is the density of aluminum?

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )