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Questions and Answers
How many protons does the element Calcium (Ca) have?
How many protons does the element Calcium (Ca) have?
- 59
- 6
- 20 (correct)
- 27
What is the total number of electrons in the element Copper (Cu)?
What is the total number of electrons in the element Copper (Cu)?
- 20
- 6
- 59
- 27 (correct)
Which molecule is composed of two oxygen atoms?
Which molecule is composed of two oxygen atoms?
- Nitrogen gas (N2)
- Water (H2O)
- Carbon dioxide (CO2) (correct)
- Sulfuric acid (H2SO4)
How many neutrons does the element Carbon (C) have?
How many neutrons does the element Carbon (C) have?
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Which compound is represented by the chemical formula NaOH?
Which compound is represented by the chemical formula NaOH?
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What is the element symbol for Copper?
What is the element symbol for Copper?
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