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galina1969 [7]
2 years ago
9

What is the frequency of light that has an energy of 3.98 x 10-18 J

Chemistry
1 answer:
Dominik [7]2 years ago
8 0
This is what i have found i hope this helps

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tino4ka555 [31]
True- strong acids completely ionize
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3 years ago
Susan conducts an experiment five times and gets a solution concentration of 1.9M, 2.1M, 1.8M, 1.9M, and 2.2M. The known concent
4vir4ik [10]
D they are accurate but not preci
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3 years ago
Can someone please help and I will mark you as brainlist!!
padilas [110]
The answer for the first one is the second option.

The answer for the second one is the last option.

Hope this helped and have a nice day : )

5 0
3 years ago
What is a Siberian wood frogs habitat? <br> Pls help
AleksandrR [38]
Hello!

Here is your answer:

A Siberian wood frogs habitat is most likely INA forest were it can stay moist and have a surplus of insects to eat.

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6 0
3 years ago
Calculate the concentration of hydroxide ions (OH-) in a solution with a pOH of 2.52?
vodomira [7]

Answer:

The concentration of hydroxide ions is 3.02*10⁻³ M

Explanation:

The pOH (or OH potential) is a measure of the basicity or alkalinity of a contamination and is defined as the negative logarithm of the activity of the hydroxide ions. That is, the concentration of OH- ions:

pOH= -log [OH-]

The pOH has a value between 0 and 14 in aqueous solution, the solutions with pOH being greater than 7 being acidic, and those with pOH less than 7 being basic.

If pOH= 2.52 then

2.52= -log [OH-]

[OH-]= 3.02*10⁻³ M

<u><em>The concentration of hydroxide ions is 3.02*10⁻³ M</em></u>

<u><em></em></u>

3 0
3 years ago
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