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Zigmanuir [339]
3 years ago
14

!!!!HELP PLEASE!!!!!Which of the following molecules has a trigonal pyramidal shape?

Chemistry
2 answers:
aksik [14]3 years ago
8 0

Answer:

No.D is the molecules that has trigonal pyramidal sape

BartSMP [9]3 years ago
3 0

Answer:it’s actually A

Explanation:u welcome I got this wrong rip

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False

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The researcher performed a follow-up experiment to measure the rate of oxygen consumption by muscle and brain cells. Predict the
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0 0
3 years ago
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The lattice structure in a metal is _____ than the lattice structure of an ionic compound.
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8 0
3 years ago
Are pure substances chemically combined​
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Pure substances can or can not be chemically combined.

Pure substances can be either elements or compounds, but not mixture. Mixture are different substances mixing together without being chemically combined, such as air, which is a mixture of oxygen, carbon dioxide, water etc. Mixture can be separated by physical methods, like filtration or decantation.

Meanwhile, elements are the substances that cannot be further separated by any means. No matter physical or chemical methods. Examples of elements are oxygen, hydrogen, neon and all the other ones from the periodic table. Compounds are basically elements joining together, but they’re chemically combined which means their electrons (kind of subatomic particle) are either shared or given away. These elements can only be separated by chemical methods like electrolysis or heating.

Therefore, as long as the substance cannot be separated by physical methods, it can be considered as a pure substance. We can now conclude that pure substance can be (element) or can not be (compound) chemically combined.

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3 years ago
Plz help this is due today...
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Both i belive Health class

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2 years ago
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