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3 years ago

A neutralization reaction between an acid and a metal hydroxide produces ________.

2 answers:

5 0

A neutralization reaction between an acid and a metal hydroxide will produce water and a salt. Consider the reaction between sodium hydroxide and hydrochloric acid. This would be:
NaOH + HCl --> NaCl + H2O
The resulting products are table salt (NaCl) and water (H2O)

irina [24]3 years ago

5 0

Answer : The correct option is, (a) water and a salt

Explanation :

Neutralization reaction : It is a type of chemical reaction in which an acid react with a base or metal hydroxide to give salt and water as a product that means it reacts to give a neutral solution.

For example :

When sodium hydroxide base react with hydrochloric acid then it react to gives sodium chloride and water as a product.

The balanced chemical reaction will be:

$HCl+NaOH\rightarrow NaCl+H_2O$

Hence, the correct option is, (a) water and a salt

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How does the law of conservation of mass apply to this reaction: C2H4 + O2 → H2O + CO2?

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3 years ago

How much energy is released when 0.40 mol C6H6(g) completely reacts with oxygen?

Vsevolod [243]

This question asksyou to apply Hess's law.
You have to look for how to add up all the reaction so that you get the net equation as the combustion for benzene. The net reaction should look something like C6H6(l)+ O2 (g)-->CO2(g) +H2O(l). So, you need to add up the reaction in a way so that you can cancel H2 and C.
multiply 2 H2(g) + O2 (g) --> 2H2O(l) delta H= -572 kJ by 3
multiply C(s) + O2(g) --> CO2(g) delta H= -394 kJ by 12
multiply 6C(s) + 3 H2(g) --> C6H6(l) delta H= +49 kJ by 2 after reversing the equation.
Then,
6 H2(g) + 3O2 (g) --> 6H2O(l) delta H= -1716 kJ
12C(s) + 12O2(g) --> 12CO2(g) delta H= -4728 kJ
2C6H6(l) --> 12 C(s) + 6 H2(g) delta H= - 98 kJ
______________________________________...
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I hope this helps and my answer is right.

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3 years ago

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The most important ore of aluminum is _____ show the chemical formula .

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Answer:

The most important ore of aluminum is Bauxite.

And its chemical formula is $Al_2O_3.2H_2O$ .

Explanation:

Bauxite is the most important ore of Aluminium from which Aluminium is extracted. Bauxite is a rock and composed of Aluminium bearing mineral.

And its chemical formula is $Al_2O_3.2H_2O$ .

It contains Gibbsite, Bohmite and Diaspore along with iron.

It is a soft material with somewhat white to grey to reddish brown in colour.

It has an earthy lustre and low specific gravity.

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4 years ago