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Bezzdna [24]
2 years ago
13

What ive learned about heat,sound and light​

Chemistry
1 answer:
steposvetlana [31]2 years ago
8 0

Answer:

they are all in parts of our life and we need them each for surviving.

Explanation:

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Which is the strongest acid listed in the table?
andrew11 [14]

Answer:

Hydrofluoric acid.

Explanation:

To know which of the acid is the strongest, let us determine the pka of each acid. This is illustrated below:

1. Acetic acid

Ka = 1.8x10^-5

pKa =..?

pKa = –logKa

pKa = –Log 1.8x10^-5

pKa = 4.74

2. Benzoic acid

Ka = 6.5x10^-5

pKa =..?

pKa = –logKa

pKa = –Log 6.5x10^-5

pKa = 4.18

3. Hydrofluoric acid.

Ka = 6.8x10^-4

pKa =..?

pKa = –logKa

pKa = –Log 6.8x10^-4

pKa = 3.17

4. Hypochlorous acid

Ka = 3.0x10^-8

pKa =..?

pKa = –logKa

pKa = –Log 3.0x10^-8

pKa = 7.52

Note: the smaller the pKa value, the stronger the acid.

The pka of the various acids as calculated above is given below:

Acid >>>>>>>>>>>>>>>>>> pKa

1. Acetic acid >>>>>>>>>> 4.74

2. Benzoic acid >>>>>>>> 4.18

3. Hydrofluoric acid >>>> 3.17

4. Hypochlorous acid >> 7.52

From the above illustration, we can see that hydrofluoric acid has the lowest pKa value. Therefore, hydrofluoric acid is the strongest among them.

6 0
3 years ago
Large crystals are made from the slow cooling of magma. <br> a. True<br> b. False
Step2247 [10]
I would have to say the answer is a. True.
5 0
3 years ago
Read 2 more answers
How many molecules are there in 2.30g of NH3
Vinil7 [7]

Answer:

8.13x10^22 molecules

Explanation:

We can use the Avogadro's number(6.022 x 10^23 units / mole)

2.30 g NH3 (1 mol / 17.03 g ) (6.022 x 10^23 molecules / 1 mol ) = 8.13x10^22 molecules

Hope this helps! Feel free to ask any questions!

6 0
2 years ago
The enthalpy of neutralization for the reaction of a strong acid with a strong base is −56 kJ/mol of water produced. How much en
denis23 [38]

Answer:

mxmxmxmxmxmxmxnxnsjjsjsjsjs

kskskw

Explanation:

msmsjsjdjdj

make

wokskwkwkwkwjjejesjsjjsjwjwj

6 0
2 years ago
Do you think that humans are more likely to visit another
Darina [25.2K]

Answer:

terrestrial planets have a higher density than Jovian planets

7 0
2 years ago
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