5. You encounter a material that is white, powdery, with a low melting point, and no luster. Is this material likely to be made of a metal or a nonmetal? Justify your answer. (5 pts)

2. you__turn left on a red light if you are in the left-most lane of a one-way street, you're turning into the left-most lane of a one-way street, and no nearby sign prohibits the turn.

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false