Jamal wants to make a model of a hill near his house to test the way the slope affects how rain runs down the hill. Which type of model would be best for what he needs?

just as iron rusts, copper also reacts with oxygen in the air in the process of corrosion. design an experiment to study how factor affects the rate at which copper corrodes

What do chemists use to describe a chemical reaction

How many Valence electrons does Li have?

Compare two cells. One has a surface area to volume ratio of 3:1 and the other has a ratio of 6:1. Which one will have a better ability to get materials across its membrane?

Convert 4.50 moles of Fe to atoms of Fe

Which of the following correctly compares the radii of Cl and Cl-? Cl has a larger radius than Cl - because Cl has an additional energy shell. Cl has a smaller radius than Cl - because Cl has an expanded electron cloud.

When a stretched string is vibrated up and down with a particular frequency, it causes a standing wave to be produced.

Find the concentration of a solution with 30 grams of solute in 250 grams of solution.

What unit is used to measure cell potential? A. electron Kelvin oxidation number OD. volt

What term is used to describe a testable modle