Which of the following substances can be used to neutralize HF?

Chemistry

1 answer:

Artemon [7]3 years ago

4 0

Answer:

option (D) NaOH is right answer

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Which of the following best explains why solids do not change

Lesechka [4]

Answer: The particles in a solid are packed very close to each other.

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4 years ago

If molten sodium chloride is split by electrolysis, which reaction occurs at the anode?

mariarad [96]

Answer: $2Cl^-(l)\rightarrow 2e^-+Cl_2(g)$

Explanation:

Electrolysis of a subastance is breaking it into its constituents by the action of electrical current.

In the electrolysis of molten sodium chloride, sodium metal is produced at the cathode which is a negative electrode and chlorine gas produces as the anode which is a positive electrode.

$2NaCl(l)\rightarrow 2Na^++2Cl^-$

At anode : $2Cl^-(l)\rightarrow 2e^-+Cl_2(g)$

At cathode : $2Na^+(l)+2e^-\rightarrow 2Na(l)$

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3 years ago

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What is the mass of ice that is melted by 755 J of heat melt a piece of ice?

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755,000 joules

Explanation:

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4 years ago

If the relative errors of three quantities to be multiplied together are 0.009, 0.006 and 0.003, what is the relative error of t

Dima020 [189]

Answer: The relative error of the resulting quantity is 0.018.

Explanation: Relative error of the quantities when are multiplied together is usually less than or equal to the sum of each relative error. Mathematically, it is represented as

$\delta x=\frac{\Delta x}{x}$