Chemical Formulas

Grace, Avery, and Evelyn are having a debate. Grace says the formula for potassium chloride is KCl, Avery thinks it's PCl, and Evelyn is sure it's KClO₂. Who is correct?

• Grace (KCl)

• Avery (PCl)

• Evelyn (KClO₂)

• None of them

Chemistry whiz Avery is challenging Olivia and Julio to a quick quiz! Can you help them figure out the formula for calcium acetate?

• CaC₂H₃O₂

• Ca₂C₂H₃O₂

• Ca(C₂H₃O₂)₂

• Ca(C₂H₃O₂)₃

• None of These

Scarlett, Abigail, and Aria are in a chemistry class. Their teacher challenges them with a question, 'Can you tell me the formula for iron(III) oxide?'

• Fe₃O₂

• Fe₃O

• FeO

• Fe₂O₃

• None of These

Arjun, Oliver, and Zoe are on a chemistry adventure! They've discovered a bright blue compound in their lab and need to identify it. What is the formula for copper(II) hydroxide, the compound they suspect it to be?

• Cu₂OH

• Cu(OH)₂

• CuOH₂

• Cu₂O₂H₂

• None of These

Drew, Patrick, and James are on a treasure hunt. They stumble upon a riddle that says, 'To unlock the treasure, you must identify the formula for hydrochloric acid.' Can you help them solve the riddle?

• HClO₄

• HClO₃

• HClO₂

• HClO

• HCl

During a fun science quiz, Ethan, Zoe, and Hannah are trying to remember the formula for chloric acid for the winning point! Can you help them out?

• HClO₄

• HClO₃

• HClO₂

• HClO

• HCl