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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Write the formula for sodium chloride.
💡 Hint: Consider the charges of sodium and chloride ions.
Question 2
Easy
What is the formula for water?
💡 Hint: Count the number of hydrogen and oxygen atoms.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the formula for magnesium chloride?
- MgCl
- MgCl₂
- Mg₂Cl
💡 Hint: Pay attention to the charges!
Question 2
True or False: The formula for sodium sulfate is NaSO₄.
- True
- False
💡 Hint: Think of the charge balance!
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A compound consists of sodium and sulfate ions. If sodium has a valency of +1 and sulfate has a -2 charge, how do you write the correct formula?
💡 Hint: Think about how many sodium ions you need to balance the charge.
Question 2
If a compound contains magnesium and phosphate, where magnesium has a +2 valency and phosphate has a -3 charge, what is the formula?
💡 Hint: Use the criss-cross method to balance the charges.
Challenge and get performance evaluation