3 Questions
Which of the following is a correct statement about isotopes?
Isotopes have the same number of neutrons
What is the formula for calculating the number of moles of a substance?
n = m/V
What is the difference between an exothermic and endothermic reaction?
Endothermic reactions absorb energy from the surroundings
Test your knowledge of basic chemistry concepts with this quiz for class 9 students. From understanding isotopes to calculating the number of moles of a substance, this quiz covers a range of topics. You'll also be challenged to differentiate between exothermic and endothermic reactions. Sharpen your chemistry skills and see how well you do!
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