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Elan Coil [88]
3 years ago
15

A pH of 2 indicates a(n) _____.

Chemistry
1 answer:
solniwko [45]3 years ago
6 0
A pH of 2 indicates a acid
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How would I Determine the number of moles in 3.51 x 10^23 formula units of CaCl2
Andrej [43]

Answer:

by using this formula you will get it

Explanation:

number of mole = number of particles÷ Avogadro's number

n=3.51×10^23÷ 6.02×10^23

n = 0.58 moles

8 0
3 years ago
Do you expect the O---O bond in H2O2 to be longer or shorter than the O---O bond in O2?
melomori [17]

Answer : The O-O bond in H_2O_2 will be longer than the O-O bond in O_2.

Explanation :

In the H_2O_2, the two oxygen atoms are bonded by the single bond and in O_2, the two oxygen atoms are bonded by the double bond.

As we know, the bond strength of double bond is greater than the single bond.

And the relation between the bond strength and bond length is,

\text{ Bond strength}\propto \frac{1}{\text{ Bond length}}

That means the higher the strength, the shorter will be the bond length.

Hence, the bond length of single bond will be longer than the double bond.

The structure of given molecule is shown below.

8 0
3 years ago
Which of following reactions shows the formation of a hydronium ion? H+ + H2O H3O+ H2O + CO2 H2CO3 NaOH Na+ + OH− H2O + NH3 OHâˆ
lesantik [10]
It can be formed by H+ ion and an H20 molecule also the chemical formula is H30+ or in other and easier way thus formula
H+ + H20=H30+
7 0
3 years ago
Read 2 more answers
In the quantum mechanical model, what two words do they use to describe<br> particles?
miskamm [114]

Answer:

This question is incomplete

Explanation:

This question is incomplete but one can assume the answer from the definition of quantum mechanics. Quantum mechanics is the science that describes particles in nature at the atomic and subatomic particle (electron, proton and neutron) level. Thus it can be assumed that atoms and subatomic particles are used to broadly describe particles.

5 0
3 years ago
What percentage of the naphthalene molecules emitted a photon?
bulgar [2K]
If I'm correct buy all the formula and the work I did I'm coming up with 3.7%
5 0
3 years ago
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