How would the pressure being exerted on a rock be different near the crust compared to near the core?

What three things determine the shape and size of a puddle when water is poured out onto a surface

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

3.09 lab: reaction of metals 1 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.