Ask question

Ask question

All categories

3 years ago

9

Pleasseee help!! Got STUCK FOR A WHILE!! How does this equation help you to understand acids and bases: H+(aq) + OH-(aq)H2O(aq)?

1 answer:

Gekata [30.6K]3 years ago

7 0

Answer:

Odd answer choices, but I would put "It shows you that water is a reversible reaction, which contains hydrogen and hydroxide reactions."

Explanation:

The first choice is weird, although water can be written as HOH that doesn't help you understand acids and bases.

The third choice doesn't do that either, and there are more ways for water to be formed than that.

The second choice helps you understand acids and bases, specifically, in water's self-ionization process. It also shows you that it is neutral because it is formed from Hydrogen, which is usually present in acids, and a Hydroxide group, which is usually present in bases.

You might be interested in

Plzz help in this i have an exam today

Zielflug [23.3K]

Answer:

a and c are reduction

b and d are oxidation

8 0

3 years ago

If your mixing cement for the foundation of a building and it calls for 1.55 tons of sand, how many grams of a sand are you usin

Damm [24]

Answer:

1406136 grams

Explanation:

6 0

3 years ago

Which of the following best describes the material that makes us the mantle?

IgorLugansk [536]

Answer:

A- a rigid solid

Explanation:

The Earths mantle is mainly made up of rock and rocks are rigid and are solid.

8 0

3 years ago

What causes the electrons to move and form static electricity?

Effectus [21]

Answer:

friction

Explanation:

The rubbing of certain materials against one another can transfer negative charges, or electrons.

4 0

3 years ago

A compound is found to contain 13.65 % carbon and 86.35 % fluorine by mass. To answer the question, enter the elements in the or

Nimfa-mama [501]

Answer: The molecular formula will be $CF_4$

Explanation:

If percentage are given then we are taking total mass is 100 grams.

So, the mass of each element is equal to the percentage given.

Mass of C= 13.65 g

Mass of F = 86.35 g

Step 1 : convert given masses into moles.

Moles of C = $\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{13.65g}{12g/mole}=1.138moles$

Moles of F= $\frac{\text{ given mass of F}}{\text{ molar mass of F}}= \frac{86.35g}{19g/mole}=4.545moles$

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C = $\frac{1.138}{1.138}=1$

For F = $\frac{4.545}{1.138}=4$

The ratio of C : F= 1: 4

Hence the empirical formula is $CF_4$

The empirical weight of $CF$ = 1(12)+4(19)= 88g.

The molecular weight = 88.01 g/mole

Now we have to calculate the molecular formula.

$n=\frac{\text{Molecular weight }}{\text{Equivalent weight}}=\frac{88.01}{88}=$

The molecular formula will be= $1\times CF_4=CF_4$

5 0

4 years ago