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vivado [14]
3 years ago
6

Hellooooooooooooooooooooo

Chemistry
1 answer:
AnnZ [28]3 years ago
6 0

Answer:

hiiiiiiiiiiiiiiiiiiiiiiiii THANK YOU SO MUCH FOR THE POINT

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13. What is the frequency of a wave that has a wavelength of 2.73 x 10-7m?​
ella [17]

Answer:

f = 1.09 × 10¹⁵ Hz

Explanation:

Given data:

Frequency of wave = ?

Wavelength of wave = 2.73 ×10⁻⁷ m

Solution:

Formula:

Speed of light = frequency × wavelength

speed of light = 3× 10⁸ m/s

by putting values,

3× 10⁸ m/s = f × 2.73 ×10⁻⁷ m

f = 3× 10⁸ m/s  / 2.73 ×10⁻⁷ m

f = 1.09 × 10¹⁵s⁻¹

s⁻¹ = Hz

f = 1.09 × 10¹⁵ Hz

4 0
3 years ago
If a notebook has a mass of 50 grams, a length of 12 cm, a width of 5 cm and a height of 1cm, what is the volume of the notebook
Wewaii [24]

Answer:

I'm pretty sure the answer is 60cm.

Explanation:

Volume = L×W×h

6 0
3 years ago
Which of the following is the correct sequence for the discovery of subatomic particles? a Electrons> Protons > Neutrons b
laila [671]

Answer:

C

Explanation;

Maybe is C

4 0
3 years ago
Read 2 more answers
In the investigation "Comparing the Effects of the Products of Cellular Respiration
Marianna [84]

The solution changed color because the substances are not neutral.

<h3>pH</h3>

Chemical substances have different concentrations of the hydrogen cation, called PH.

The higher the pH, the more basic the substance, and the lower the more acidic.

Bromothymol blue is a pH indicator that changes its color according to the pH of the substance, yellow for acid, blue for basic and green for neutral.

In the case of the reactions in question, we have the release of CO2 (acid) in combustion and in cellular respiration, changing the color of bromothymol blue to yellow.

Learn more about pH in: brainly.com/question/491373

3 0
2 years ago
In a laboratory investigation, an HCl(aq) solution with a pH value of 2 is used to determine the molarity of a KOH(aq) solution.
guapka [62]

Answer:

blue

Explanation:

KOH is a base therefore it's pH will be above seven. According to table M when tested with the indicator bromcreeol green The solution will turn blue

5 0
3 years ago
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