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sweet-ann [11.9K]
3 years ago
12

HELP ME PLEASE!! ASAP

Chemistry
1 answer:
cestrela7 [59]3 years ago
4 0

(4) 3- ethyl -2,5 dimethyl -1,4 -hexadiene

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Calculate the wavelength of a photon of light having a frequency of 3.50 x 1015 Hz.
Aliun [14]

Answer:

Wavelength, \lambda=8.57\times 10^{-8}\ m

Explanation:

Given that,

Frequency, f=3.5\times 10^{15}\ Hz

We need to find the wavelength of a photon of light. The relation between frequency and wavelength is as follows :

c=f\lambda\\\\\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{3.5\times 10^{15}}\\\\\lambda=8.57\times 10^{-8}\ m

So, the wavelength of the light is 8.57\times 10^{-8}\ m.

4 0
3 years ago
An atom in the ground state has seven valence electrons. This atom could be an atom of which element?
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The valence electrons of an element is usually determined by its atomic number. The valence elctrons are the electrons that have the highest energy level. 

Fluorine has 7 valence electrons in the ground state. 
3 0
3 years ago
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Is cis 4-tert-butylcyclohexanol more polar than trans? I recently did a reduction reaction of 4-tert-butylcyclohexanol with sodi
natima [27]

Cis is more polar than trans. Cis would be \_/ and trans is /-/. I am hoping that this answer has satisfied your query about and it will be able to help you, and if you’d like, feel free to ask another question.

7 0
3 years ago
How many protons does the biggest element of the periodic table have?
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Cesium is the biggest, atom wise.It has 55 protons.
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3 years ago
To titrate 50.00 milliliters of an unknown HC2H3O2 sample, use 43.00 milliliters of a standard 0.1000 M NaOH titrant. What is th
rewona [7]
The molarity of the acid is 0.086 00 mol/L.

HC₂H₃O₂ + NaOH → NaC₂H₃O₂ + H₂O

Since 1 mol of acid reacts with 1 mol of base, we can use the formula

M₁V₁ = M₂V₂

M₁ = ?; V₁ = 50.00 mL
M₂ = 0.1000 mol/L; V₂ = 43.00 mL

M₁ = M₂ × \frac{ V_{2}}{ V_{1}} = 0.1000 mol/L × \frac{43.00 mL}{50.00 mL} = 0.086 00 mol/L
7 0
4 years ago
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