In a lava lamp, a waxy substance rises and falls repeatedly. What causes the waxy substance to rise? Check all that apply.

Why is density considered a physical property rather than a chemical property of matter?

How many atoms and ions does lead nitrate have?

Which particle has the least mass? (1) alpha particle (3) neutron (2) beta partic1e (4) proton

Sulfur has an atomic number of 16 what is the ground-state electron configuration of sulfur

In humans, having freckles is dominant over not having freckles. Neither George nor Ruth has freckles. What percentage of their children will have freckles?

Which of the following will most likely happen if you apply unbalanced forces to an object? It will change position. It will become charged. It will change mass. It will change size.

Magnetism easily separates what mixture? A). Sand and glass B). Sand and iron C). Sand and clay D). Sand and aluminum

Match the science with the best description?

Can magnetism be used to identify a substance

Nitrogen dioxide dimerizes to give dinitrogen tetroxide: 2NO2 (g) → N2O4 (g). At 298 K, 12.55 g of an NO2/N2O4 mixture exerts a pressure of 0.963 atm in a volume of 6.92 L. What are the mole fractions of the two gases in the mixture?