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3 years ago

Which of the following describes a strong acid?

Chemistry

1 answer:

zlopas [31]3 years ago

7 0

I remember learning this last y’all i jus don’t remember it might be A or C

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Write a chemical equation for the following decomposition reaction.

Aneli [31]

<span>the chemical equation will be Ni(OH)2(s)------>heat---> NiO(s) + H2O(g)
</span><span>we know that the heat supplied to decompose the compound.In the result the product H2O is assumed to be in the vapor state so that is gas.

hope it helps
</span>

7 0

3 years ago

What is the molarity of 4 qof NaCl (MM=58.45) in 3,800 mL of solution?

tiny-mole [99]

Answer:

.018 M

Explanation:

grams/MM=ans./volume(L) = M

4/58.45=ans./3.8=.018 M

8 0

3 years ago

Using the formula M1V1 = M2V2 , how many milliliters of a 2. 50 M hydrochloric acid solution is required to make 100. 0 mL of a

gladu [14]

Dilution of the solution can be calculated by the formula of the molarity and volume. The initial volume of 2.50 M solution was 30 mL.

<h3>What is the relationship between molar concentration and dilution?</h3>

Molar concentration or the dilution factor is in an inverse relationship and with an increase in the dilution, the molarity of the solution decreases.

Given,

Initial molarity = 2.50 M

initial volume = ?

Final molarity = 0.750 M

Final volume = 100.0 ml

Substituting values in the formula:

$\begin{aligned}\rm V_{1} &= \rm \dfrac{M_{2}V_{2}}{M_{1}}\\\\&= \dfrac{0.750 \times 100}{2.50}\\\\&= 30 \;\rm mL\end{aligned}$

Therefore, 30 mL was the initial volume of the solution before it was diluted.

Learn more about dilution here:

brainly.com/question/26896011

3 0

2 years ago

Which catalyzed reaction breaks up ozone? 2H2O2(l) right arrow with upper M n upper O subscript 2 above it. 2H2O(l) + O2 O3 + O

anyanavicka [17]

Answer: B

Explanation: The answer is B

6 0

3 years ago

Read 2 more answers

Ice floats on water. For most other substances, however, the solid sinks in the liquid.

svetoff [14.1K]

Answer:The solid is less dense than the liquid

Explanation:

Ice is less dense than water because of the crevices or spaces in the lattice structure of ice. Liquid water has a much greater density than solid water because its molecules are more compactly packed than in ice. Ice has large spaces between the hydrogen bonded water molecules hence less density than the liquid. Being less dense than !liquid water, it floats on water.

7 0

3 years ago