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tankabanditka [31]
2 years ago
9

Is mass conserved when 40 g of sodium hydroxide undergoes a chemical change during an interaction with 37g of hydrogen chloride?

Use complete sentences to support your answer by explaining how this can be demonstrated. (10 points)​
Chemistry
1 answer:
DENIUS [597]2 years ago
7 0

Answer:

Mass is conserverd

Explanation:

Any chemical reaction must follow the law of conservation of mass. Meaning that mass cannot be created nor destroyed. Since all chemical reactions must follow this law, no matter what reaction happens, mass is conserved.

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Write the chemical equation for hbro reacting with water. what are the products? do you expect to have any hbro molecules left i
Vinil7 [7]
1) HOBr stands for hypobromous acid. On reacting with water, products formed are OBr- and H3O+. Following reaction occurs during this process.

<span>                                     HOBr + H2O </span>⇄<span> OBr- + H3O+

2) HOBr is a weak acid and have a lower value of dissociation constant (Ka ~ </span><span>2.3 X 10^–9). Hence, </span><span> large number of undissociated HOBr molecules are left in solution, when the reaction is completed/reaches equilibrium.</span>


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Answer:

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Explanation:

Hope this helps! :)

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<span>Which of the following is NOT true about "yield"? a. The value of the actual yield must be given in order for the percent yield to be calculated. b. The percent yield is the ratio of the actual yield to the theoretical yield. c. The actual yield may be different from the theoretical yield because reactions do not always go to completion. d. The actual yield may be different from the theoretical yield because insufficient limiting reagent was used.

The correct answer is:
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Determine the number of protons, electron and neutrons present in an atom of magnesium
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5 0
3 years ago
Please help me I want to be sure I will mark you
defon

Answer:

Probably A.

Explanation:

Its either A or C. A is more probable imo

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