Emma and Benjamin are in a chemistry class. Their teacher, William, asks them to identify the type of compound sodium chloride is, which is commonly found in table salt. What type of compound is it?

Luna and Benjamin are in a chemistry lab. They found a compound labeled as 'CaO'. What is the correct name for this compound that they found?

James is studying chemistry and he learned about cations. He knows that a cation has a certain type of charge. What is the charge of the cation that James is studying about?

Samuel and Mia are in a chemistry lab. Samuel has a Cu (Copper) element and Mia has a Br (Bromine) element. If they combine these two elements, using electronegativities, what type of bond will be formed?

Mia, Evelyn, and Aria are working on a chemistry project. They found a compound with the formula Fe2O3. What is the correct name for this compound? (All numbers are subscripts)

Aria, Elijah, and Arjun are working on a chemistry project. They are trying to identify the type of compound NH4 (All numbers are subscripts) is. Can you help them?

Ethan is conducting a chemistry experiment and he needs to know the oxidation state for oxygen. Can you help him?

Benjamin, Avery, and Priya are in a chemistry lab. They are given a sample of a compound and told that it is chromium (III) bromide. They are asked to write down the correct chemical formula for this compound. (All numbers are subscripts). What formula do they write?

Oliver, Sophia, and Noah are in a chemistry lab. They are given a sample of a compound and told that it is iron (II) chloride. They are asked to write down the correct chemical formula for this compound. (All numbers are subscripts). What formula do they write?

Isabella is studying chemistry and she learned about anions. She knows that an anion has a certain type of charge. What is the charge of the anion that Isabella is studying about?

Lucas, Harper, and Ethan are working on a chemistry project. They need to create a compound using magnesium and oxygen. Can you help them figure out the correct chemical formula for magnesium oxide? (All numbers are subscripts)