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Sedaia [141]
3 years ago
11

Which are made of matter?

Chemistry
1 answer:
finlep [7]3 years ago
3 0

Yo sup??

The correct answer is option B ie

both living and non living things.

Hope this helps

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Which structural formula represents an unsaturated hydrocarbon?
bija089 [108]

Answer:

4

Explanation:

your chosen answer is right as unsaturated mean contains double bond and 1st and 3rd is Wrong as Carbon only can have 4 bonds and 2nd is Wrong as it is saturated.

hope this helps :)

5 0
2 years ago
What is the wavelength of a photon with an energy of 3.38 x 10-19 J?
irina1246 [14]

Answer:

C. 588 nm

Explanation:

Given parameters:

Energy of the photon  = 3.38 x 10⁻¹⁹J

Unknown:

Wavelength of the photon   = ?

Solution:

The energy of a photon can be expressed as;

     E = \frac{hc}{wavelength}

    hc  = E x wavelength

     Wavelength  = \frac{hc }{E}  

  h is the Planck's constant = 6.63 x 10⁻³⁴m²kg/s

  c is the speed of light  = 3 x 10⁸m/s

  E is the energy  

   Wavelength = \frac{6.63 x 10^{-34} x 3 x 10^{8} }{3.38 x 10^{-19} }    = 5.89 x 10⁻⁷m

4 0
3 years ago
Read 2 more answers
This is how krypton appears in the periodic table. Rounded to the nearest whole number, how many protons are in an atom of krypt
Ierofanga [76]

36 is the answer hope it helps


8 0
2 years ago
Read 2 more answers
If an atom has 2 electrons outside of its nucleus, which combination of protons and neutrons would result in a neutral atom?
Dahasolnce [82]
It would be a llllllllllll
8 0
3 years ago
Which is an example of mechanical weathering?
d1i1m1o1n [39]

Answer:

D

Explanation:

mechanical weathering is the breaking down of a larger rock into smaller ones. A and B are chemical weathering and C is irrelevant.

3 0
3 years ago
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