16.0 grams of molecular oxygen gas is equal to A)
0.500 moles of oxygen molecules.
B)
1.00 mole of oxygen molecules.
C)
6.02 x 1016 of oxygen molecules.
D)
6.02 x 1032 of oxygen molecules.

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

What is the most important factor in determining climates.