3 years ago

Which activity demonstrates chemical weathering?

Chemistry

1 answer:

valina [46]3 years ago

6 0

The answer is A, to my brain power ig B)

You might be interested in

What life process can plant cells carry out that a cell from another kind of multi-cellular organism cannot?

creativ13 [48]

Photosynthesis. animal cells can't carry out photosynthesis since they don't have chloroplasts.

3 0

3 years ago

Which of the following are building blocks of elements A. Atoms B. Protons C. Ions 2. Atoms are made up of A. Air,water,soil B.

Serjik [45]

1. A - atoms

2. B - protons electrons and neutrons

6 0

3 years ago

Use the periodic table to predict which element has the LEAST metallic character--- silicon sodium krypton or potassium ??????

Andru [333]

krypton is the answer blah blah blah is this enough letters

4 0

3 years ago

Read 2 more answers

(b) Ozone absorbs radiation of wavelengths 2200–2900 Å, thus protecting organisms from this radiation. Find the frequency and en

GrogVix [38]

The frequency and energy of most energetic of these photons is $1.36*10^{15}$ Hz and $9.04*10^{-19}$ J respectively.

The high energy photons will have least wavelength. Taking the given less wavelength for calculation of frequency and energy of photons.

λ = 2200 Å

Also, we know, 1 Å = $10^{-10}$ m

So, λ = $2200*10^{-10}$

λ = $2.2*10^{-7}$ <em> </em>m

Now, calculating frequency using the formula -

c = fλ, where c is speed of light, f is frequency and λ is wavelength.

We know, c = $3*10^{8}$ m/s

f = c/λ

f = $\frac{3*10^{8} }{2.2*10^{-7} }$

frequency = $1.36*10^{15}$ Hz

Now, calculating Energy through the formula -

E = hf, where E is energy, h is planck's constant and f is frequency

Value of planck's constant = $6.63*10^{-34}$ Js

E = $6.63*10^{-34}$ * $1.36*10^{15}$

Energy = $9.04*10^{-19}$ J

Thus, frequency and energy of photons is $1.36*10^{15}$ Hz and $9.04*10^{-19}$ J respectively.

Learn more about energy of photon -

brainly.com/question/15946945

#SPJ4

3 0

1 year ago

Using the balanced equation: 2 KCIO3 -> 2 KCI + 3 O2 How many moles of

blagie [28]

I think 4.5 mole may be

3 0

3 years ago