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Zolol [24]
3 years ago
5

Which is one way to determine whether a reaction was a chemical reaction or a nuclear reaction?

Chemistry
2 answers:
Elena-2011 [213]3 years ago
7 0

Answer:

A. Check for a change in total mass during the reaction.

Roman55 [17]3 years ago
5 0
Answer: check for a change in total mass during a reaction.

According to the law of conservation of mass during a chemical change the total mass of the products remains equal to the total mass of the reactants: there is not change in the total mass.

During nuclear reactions the mass can change due to the huge release of energy which proceeds from mass change, as per the famous equation ΔE =Δm. c^2.
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2 years ago
If you mix cu2+ with? a. nacl, b. nano2, c. h2o , arrange the solutions based on their absorption from highest frequency to lowe
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The arrangement of the solutions based on their absorption from highest frequency to lowest frequency :

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<h3>What is absorption frequency?</h3>
  • The frequency of the molecular vibration that led to the absorption is the same as the absorption frequency of a basic IR absorption band.
  • In a way, an emission spectrum is the opposite of an absorption spectrum.
  • The discrepancies in the energy levels of each chemical element's orbitals correspond to absorption lines for each chemical element at various particular wavelengths.
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Learn more about Absorption frequency here:

brainly.com/question/5032775

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3 0
1 year ago
For an aqueous solution of sodium chloride (NaCl) .Determine the molarity of 3.45L of a solution that contains 145g of sodium
worty [1.4K]
Molar mass NaCl = 58.44 g/mol

number of moles:

mass NaCl / molar mass

145 / 58.44 => 2.4811 moles of NaCl

Volume = 3.45 L

Therefore :

M = moles / volume in liters:

M = 2.4811 / 3.45

M = 0.719 mol/L⁻¹

hope this helps!
6 0
3 years ago
How is light energy converted to chemical energy?
ipn [44]

Answer:

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Explanation:

3 0
2 years ago
Read 2 more answers
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