Regents Chemistry 68/68

What is the chemical formula of sodium sulfate?

What is the chemical formula of sodium sulfate? (1) Na2SO4 (2) Na2SO3 (3) NaSO4 (4) NaSO3 Answer and Explanation: Too write a...

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Which molecular formula is also an empirical formula?

Which molecular formula is also an empirical formula? Answer and Explanation: An empirical formula is a formula where the subscripts of...

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Compared to a potassium atom, a potassium ion has

Compared to a potassium atom, a potassium ion has (1) a smaller radius (2) a larger radius (3) fewer protons (4) more protons

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Which substance has nonpolar covalent bonds?

Which substance has nonpolar covalent bonds? Answer and Explanation: Covalent bonds are formed between two or more nonmetals (nonmetals...

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What is the charge of the nucleus of a copper atom?

What is the charge of the nucleus of a copper atom? (1) +1 (2) +2 (3) +29 (4) +64 Answer and explanation: What particles are inside the...

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Which atom has the greatest attraction for the electrons in a chemical bond?

Which atom has the greatest attraction for the electrons in a chemical bond? (1) hydrogen (2) oxygen (3) silicon (4) sulfur

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Which two elements have the most similar chemical properties?

Which two elements have the most similar chemical properties? (1) beryllium and magnesium (2) hydrogen and helium (3) phosphorus and sulfur

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