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Karolina [17]
3 years ago
13

Which is an example of an element?

Chemistry
2 answers:
strojnjashka [21]3 years ago
6 0
C.silver 
nacl is a compound of na and cl
h2o is a compound of 2h and o
electron is a particle in an atom

gavmur [86]3 years ago
3 0
The answer to this problem could be d-electron
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sesenic [268]

Answer:

91.2 nm

Explanation:

The Rydberg equation is given by the formula

     1/ λ  = Rh ( 1/ n₁² - 1/ n₂²)

where

λ is the wavelength

Rh is Rydberg constant

and n₁ and n₂ are the energy levels of the transion.

We can see from this equation that the wavelength is inversely proportional to the difference of the squares of the inverse of the quantum numbers n₁ and n₂. It follows then that the smallest wavelength will be given when the the transitions are between the greatest separation between n₁ and n₂ whicg occurs when n1= 1 and n₂= ∞ , that is the greater the separation in energy levels the shorter the wavelength.

Substituting for n₁ and n₂ and solving for λ :

  1/λ = 1.0974 x 10⁷ m⁻¹ x ( 1/1² -1/ ∞²)  =  1.0974 x 10⁷ m⁻¹ x ( 1/1² - 0) =

  λ = 1/1.0974 x 10⁷ m = 9.1 x 10⁻8 m = 91.2 nm

4 0
3 years ago
Write the chemical equation for the follow- ing: "carbon plus oxygen produces carbon dioxide." Label the parts of the equation.​
lozanna [386]
Carbon: C
Oxygen: O2

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Reactants Product
7 0
2 years ago
How are glucose and galactose epimers?
lisov135 [29]

Answer:

<em>hehe I needed some brianliest plz OK </em>

Explanation:

<em>Glucose and galactose are monosaccharides that differ from one another only at position C-4. Thus, they are epimers that have an identical configuration in all the positions except in position C-4. ... Glucose and galactose are epimers that do not differ in position C-5 but differ in position C-4.</em>

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3 years ago
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An object in motion has what type of energy?
Alisiya [41]

Answer:

B) Kinetic

Explanation:

Kinetic Energy is energy relating to or resulting from motion. Therefore, the answer to this question is B.

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3 years ago
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2.<br> Reflect polygon P using line l.<br> P
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There is no photo , so I can’t really tell you the answer .
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4 years ago
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