What is a scientific theory?

Which element provides strength to the exoskeleton of clams and oysters

In some plants, pointed leaves (p) are dominant over rounded leaves (p). a plant with a genotype of pp

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.