Which statement shows how to correctly convert from the mass of a compound in grams to the amount of that compound in moles?
a.) molar mass (g/mol) x 1/mass (g) = amount (moles)
b.) molar mass (g/mol) x 6.022 x 10²³ = amount (moles)
c.) mass (grams0 x 1/molar mass (g/mol) = amount (moles)
d.) mass (grams) x molar mass (g/mol) = amount (moles)

Which statement best describes resistance? resistance is a. how well a current will flow in a material and is measured in volts. b. how well a material conducts an electrical charge and is measured in ohms. c. the ability of a material to attract a positive charge to create a current. d. the ability of a material to repel neutral charges and is measured in ohms.

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?