Drag the correct labels to the images. Each label can be used more than once. Classify the materials based on their composition.
rock
clear liquids
peppercorns
Concrete
Salt
Oxygen
Birdseed
Plant
concrete
salt
oxygen
birdseed
plant

substance
homogeneous
mixture
heterogeneous
mixture

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains