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kolezko [41]
3 years ago
7

What causes the recognition of an element from its energy signature?

Chemistry
1 answer:
Helga [31]3 years ago
8 0

Answer:

I'm so sorry if this is wrong but I think its B

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The chemical equation for a reaction between K2Cr2O7 and HCl is shown. K2Cr2O7 + 14HCl → 2CrCl3 + 2KCl + 3Cl2 + 7H2O
guapka [62]

<u>Answer: </u>The correct answer is Option b.

<u>Explanation:</u>

Oxidizing agent is defined as the chemical reagent which helps the other chemical compound to get oxidized and itself gets reduced. The oxidation state for these species gets reduced because they are undergoing reduction reaction.

For the given chemical equation:

K_2Cr_2O_7+14HCl\rightarrow 2CrCl_3+2KCl+3Cl_2+7H_2O

Oxidation state of Chromium is getting reduced from +6 to +3 and oxidation state of chlorine getting increased from -1 to 0.

Hence, K_2Cr_2O_7 acts like and oxidizing agent because it is itself getting reduced to CrCl_3

Therefore, the correct answer is Option b.

4 0
3 years ago
Specialized proteins which function as catalysts for organic reactions are:
grigory [225]
Specialized proteins which function as catalysts for organic reactions are enzymes. 
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How can so many different substances in the world be made of so few elements?
Mrrafil [7]
Matematically speaking, maybe because:
The number of substances = number of elements + number of different combinations of those elements
7 0
4 years ago
1. The common name for the compound CH3-CH2-O-CH3 is ​
Ket [755]

Answer:

propane

Explanation:

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3 years ago
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How is the mass of 1 mole of an element determined
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One mole (abbreviated mol) is equal to 6.022×1023 molecular entities (Avogadro's number), and each element has a different molar mass depending on the weight of 6.022×1023 of its atoms (1 mole). The molar mass of any element can be determined by finding the atomic mass of the element on the periodic table.
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3 years ago
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