Enter a balanced equation for the reaction between solid copper(ii) oxide and carbon monoxide gas that produces solid copper and carbon dioxide gas.
express your answer as a chemical equation. identify all of the phases in your answer.

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2