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guajiro [1.7K]
3 years ago
12

How many kilometers are in a 7.21. mm

Chemistry
1 answer:
Readme [11.4K]3 years ago
6 0

Answer:

0.00000721 Kilometer

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When a tip of a plant is cut it doesn't grow well​
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Explanation:

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In the compound aluminum oxide, which is the cation?
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-Aluminum Oxide: The cation is Al3+ and the anion is O2-. The sum of the charges for aluminum oxide is 2(3+) + 3(2-) = 0. Thus, the formula is Al2O3. An ionic compound is named using the name of the cation followed by the name of the anion, eliminating the word ion from each.

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2 years ago
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PbH4 will be formed as a result of a polar covalent bond between the H and the Pb.

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PbH4 would be expected to <span>have polar covalent bonds with a partial negative charges on the H atoms. </span>
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3 years ago
Help me please it’s all due soon
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