Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is one indicator of a chemical reaction?
💡 Hint: Think of visual changes during reactions.
Question 2
Easy
What does gas formation indicate?
💡 Hint: Recall examples like fizzing.
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 an observable sign of a chemical reaction?
- Color Change
- Same Color
- No Odor
💡 Hint: Consider visible changes when substances react.
Question 2
True or False: Gas formation always indicates a chemical reaction.
- True
- False
💡 Hint: Think about fizzing in reactions.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an experiment to demonstrate gas formation. What materials will you use, and what observations will you make?
💡 Hint: Think about what household items you can mix together.
Question 2
Investigate a real-world scenario where you observe precipitate formation. Describe the reaction and the solids produced.
💡 Hint: Look for experiments in your lab sessions or at home!
Challenge and get performance evaluation