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Questions tagged 'Chemistry'

452 questions

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Anonymous

Dec 18, 2024

Which of the following characterizes an ionic bond? PLEASE?

Which of the following statements accurately characterizes an ionic bond? The electrons involved in the bond are shared between two atoms. The electrons involved in the bond are transferred between...

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Anonymous

Dec 18, 2024

– Acids generally release H2 gas when they react with

Acids typically release hydrogen gas (H2) when they react with which of the following? a. Nonmetals b. Semimetals c. Active metals d. Inactive metals

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Anonymous

Dec 18, 2024

Which is most likely a covalent compound?

Which of the following is most likely a covalent compound? a. LiF b. MgS c. NH3 d. CaCl2 I apologize for the previous post; I messed up on the formatting. Thank you for your understanding!

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Anonymous

Dec 18, 2024

What is the name of the polyatomic ion in the compound Na2O2?

What is the name of the polyatomic ion present in the compound Na2O2? Please choose from the following options: 1. Hydroxide 2. Oxalate 3. Oxide 4. Peroxide

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Anonymous

Dec 18, 2024

At STP, 1.0 liter of helium contains the same total number of atoms as?

At standard temperature and pressure (STP), 1.0 liter of helium contains the same total number of atoms as which of the following options? 1. 1.0 L of neon (Ne) 2. 2.0 L of krypton (Kr) 3. 0.5 L of ra...

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Anonymous

Dec 17, 2024

4.Why did the NaCl and the KCl conduct electricity in water and not when dry?

Why do sodium chloride (NaCl) and potassium chloride (KCl) conduct electricity when dissolved in water, but not in their dry, solid forms? Could you explain the underlying mechanisms that allow ionic...

help please? How many grams of ethyl alcohol will result? and How many grams of ethyl alcohol will result?

Ethylene gas (C2H4) reacts with water at high temperatures to yield ethyl alcohol (C2H6O). I need assistance with the following questions: How many grams of ethylene are required to react with 0.130...

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Anonymous

Dec 17, 2024

An ion of which element has a larger radius than an atom of the same element? (Multiple-choice)

Hello, I'm preparing to retake a state exam and was practicing with an older version. I came across a question that really stumped me: An ion of which element has a larger radius than an atom of the...

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Anonymous

Dec 17, 2024

in the most acceptable electron-dot (Lewis) structure for carbonyl flouride, COF2 the central atom is?

In the most acceptable electron-dot (Lewis) structure for carbonyl fluoride (COF2), which atom serves as the central atom? a) Carbon (C), which is singly bonded to oxygen (O) b) Oxygen (O), which is...