1. What is the first element on the periodic table?

What makes an effective collision

What are three things that would not dissolve in water

Name the ion produced in the solution when acids are added to water.

In order to obtain 17g of copper metal, how many grams of hydrogen gas must react

How do the isotopes of a given element differ from one another

Donald is making a model of a nitrogen atom. The box for nitrogen in the periodic table is shown. To represent a neutral atom, which of these must Donald include in his model?

What are the charges and relative masses of the 3 main subatomic particles

What three things happen in order for a chemical reaction to occur?

Before running other simulations, try to think of solutions to this global energy dilemma. Write a paragraph in response to the following questions: Should we invest more heavily in renewables at a high up-front financial cost, and/or should we

What is a sedimentary rock formed from the remains of tiny sea animals.