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ANEK [815]
4 years ago
7

The replacement of hydrogen from water by sodium is an example of

Chemistry
1 answer:
skelet666 [1.2K]4 years ago
6 0
The replacement of hydrogen from water by sodium is an example of a single-displacement reaction.

A single-displacement reaction is a reaction in which an element in a compound is replaced by a different element.  In this case, hydrogen is replaced by sodium.
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Atomic number.

The atomic number is what defines the element.
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3 years ago
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At the equivalence point of a titration of the [H+] concentration is equal to:
icang [17]

B. At the equivalence point of a titration of the [H+] concentration is equal to 7.

<h3>What is equivalence point of a titration?</h3>

The equivalence point of a titration is a point in titration at which the amount of titrant added is just enough to completely neutralize the analyte solution.

At the equivalence point in an acid-base titration, moles of base equals moles of acid and the solution only contains salt and water.

At the equivalence point, equal amounts of H+ and OH- ions combines as shown below;

H⁺ + OH⁻  → H₂O

The pH of resulting solution is 7.0 (neutral).

Thus, the pH at the equivalence point for this titration will always be 7.0.

Learn more about equivalence point here: brainly.com/question/23502649

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5 0
2 years ago
When solving an equation using Gay-Lussac's law, which of the following steps do not apply? A. List your knowns and unknowns. B.
suter [353]

Answer:

C. Plug the unknowns into the ideal gas law formula.

Explanation:

Gay-Lussac's law states that:

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Mathematically, it can be written as:

\frac{p_1}{T_1}=\frac{p_2}{T_2}

where

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T1 is the initial temperature (in Kelvin)

p2 is the final pressure

T2 is the final temperature (in Kelvin)

Therefore, in order to solve for one of the 4 variables, the following steps must be adopted:

A. List your knowns and unknowns.

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While the following step is not needed:

C. Plug the unknowns into the ideal gas law formula.

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3 years ago
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Answer:

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Identify the control group the experimental group the independent variable and the dependent variable
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