Question 1
A student has 58.5 g of NaCl. Using a molar mass of 58.5 g/mol, how many moles of NaCl are present?
Correct Answer:
1.00 mol
Question 2
What is the approximate mass percentage of hydrogen in H2O? Use H = 1 and O = 16.
Correct Answer:
11.1%
Question 3
For the balanced reaction 2H2 + O2 -> 2H2O, what mole ratio of H2 to O2 is required?
Correct Answer:
2:1
Question 4
The atomic number of an element is equal to the number of which particles in each neutral atom?
Correct Answer:
Protons
Question 5
How many neutrons are in a carbon-14 atom? Carbon has atomic number 6.
Correct Answer:
8
Question 1
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About this Exam

Prepare with the Gaokao Chemistry Practice Questions - China National College Entrance Examination Chemistry Exam practice quiz. This question bank includes 100 questions covering nacl, reaction, mass, number, and water. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Gaokao Chemistry Practice Questions - China National College Entrance Examination Chemistry Exam

This practice set contains 100 questions from the matching question bank and focuses on nacl, reaction, mass, number, and water. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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