quiz on chemistry bar
This is a timed quiz. You will be given 15 seconds per question. Are you ready?
15
What type of bond is formed when electrons are shared between atoms?
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Wrong!
What is the pH of pure water at 25°C?
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Which element is most abundant in the Earth's crust?
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Wrong!
What is the atomic number of Carbon?
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Wrong!
Which subatomic particle has a negative charge?
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Wrong!
What is the chemical formula for sulfuric acid?
Correct!
Wrong!
Which of the following is an alkali metal?
Correct!
Wrong!
Which gas is released during photosynthesis?
Correct!
Wrong!
quiz on chemistry bar
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