2 years ago

If you have 66 pencils, how many dozen do you have

Chemistry

1 answer:

Marta_Voda [28]2 years ago

3 0

Answer:

5.5

Explanation:

You have to do 66 divided by 12 and you get that and if you want the proof then here it is...

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Can sombody pls help me with this

luda_lava [24]

Wouldn’t it be half of each? For 36 I guess is 18 and 54 will be 27, (NOT SURE)

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2 years ago

PLZ HELP I WILL GIVE U BRAINLEST PLZ HELP!!!!!!!!!!

sergeinik [125]

My answer is A. I'm probably wrong. in bad in this subject

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2 years ago

Read 2 more answers

Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The energy of one photon of this

Sedbober [7]

<u>Answer:</u> The energy of one photon of the given light is $3.79\times 10^{-19}J$

<u>Explanation:</u>

To calculate the energy of one photon, we use Planck's equation, which is:

$E=\frac{hc}{\lambda}$

where,

$\lambda$ = wavelength of light = $525nm=5.25\times 10^{-7}m$ (Conversion factor: $1m=10^9nm$ )

h = Planck's constant = $6.625\times 10^{-34}J.s$

c = speed of light = $3\times 10^8m/s$

Putting values in above equation, we get:

$E=\frac{6.625\times 10^{-34}J.s\times 3\times 10^8m/s}{5.25\times 10^{-7}mm}\\\\E=3.79\times 10^{-19}J$

Hence, the energy of one photon of the given light is $3.79\times 10^{-19}J$

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2 years ago

2. A 90 g bag of trail mix is contains 22% nuts, 35% granola, 18% dried fruit. The rest is chocolate chips.

elena-14-01-66 [18.8K]

There are:

19.8g of nuts (90x0.22=19.8)
31.5g of granola (90x0.35=31.5)
16.2g of dried fruit (90x0.18=16.2)
22.5g of chocolate chips (90x0.25=22.5)

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2 years ago

A physical change is a change to a sample of matter in which -

Readme [11.4K]

Answer:

its FALSE

Explanation:

FAKE ITS NOT REAL

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3 years ago