Chemistry Quiz

What is the atomic number of Carbon?

Which of the following is a chemical change?

What is the pH level of pure water at 25 degrees Celsius?

Which of the following elements is a noble gas?

What type of bond is formed when electrons are shared between atoms?

Which of the following represents a balanced chemical equation?

What is the term for a substance that increases the rate of a chemical reaction?

In the reaction 2H2 + O2 → 2H2O, what is the role of O2?

What is the main gas produced during cellular respiration?

What is the chemical formula for table salt?