A weather balloon is inflated to a volume of 2.2 x 103 L with 374 g of helium. What is the density of helium in grams per liter?

What is the relationship of air masses and the temperature of oceans?

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17