4. If you place a solid in water, you can determine: * O a. If the solid is more or less dense than water.
b. If the solid is more or less toxic than water.
c. The flammability of the solid.
O d. The mass of the solid.

__can be defined as which velocity changes

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.

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.