You can find the oxidation number of a certain element in a compound if you add up their oxidation numbers to the net charge. This is just a simple algebraic equation. Let x be the oxidation number of Cr. Since the compound is neutral, the net charge is 0. Thus,
oxidation number for Li: +1
Oxidation number of O: -2
0 = 2(+1) + x + 4(-2)
Solving for x,
x = +6
<em>Thus, the oxidation number of Cr is +6.</em>
Answer:
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Explanation:
can you help me Complete the following sentence: After we explained why we needed her in the play, she and joined our rehearsal A quaffed B. acquiesced C vengeance D. wreaked
Carbohydrates & Lipids.
Carbs are organic compounds (examples are sugars & starches). They provide energy and form structures such as cell walls.
Lipids are organic compounds (examples are fats & oils). They store energy and help form cell membranes in addition to having other functions in organisms
His work foreshadowed the periodic table. He tried organizing elements into triads, a set of 3 elements with similar properties. In each triad the mean of the lightest and heaviest atomic weight equaled to approximately the atomic weight of the middle element.