If 2.0 moles of a substance are dissolved in 2.0 liters of solution, then the molarity of this solution is:

0.5 m

1.0 m

1.5 m

2.0 m

V1t2 = v2t1 is an expression of who’s law

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.

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.