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dolphi86 [110]
2 years ago
10

Food chains always begin with what type of organism? Why?

Chemistry
1 answer:
Inessa05 [86]2 years ago
6 0
The food chain always begins with a sun without it there would be no food chain... hope this helped!
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2) carbon and hydrogen only.
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If a carbohydrate, like xylulose, has five carbon atoms and a carbonyl group on the second carbon, it is called a(n)?
vekshin1

If a carbohydrate, like xylulose, has five carbon atoms and a carbonyl group on the second carbon, it is called a(n) keto pentose.

These consist of glycogen, cellulose, as well as starch. Benedict's reagent can be used as a test to see if there are lots of simple carbohydrates present. When it interacts with lowering sugars, it changes from turquoise to yellow or orange. These contain unbound aldehyde but rather ketone groups in simple carbohydrates.

Sugars and starches are examples of carbohydrates. They contain carbon, hydrogen, and oxygen, which appear in the ratio 1:2:1. Size-based categories for carbohydrates include monosaccharides, disaccharides, or polysaccharides. Carbohydrates act as sources of power as their main purpose.

Therefore, If a carbohydrate, like xylulose, has five carbon atoms and a carbonyl group on the second carbon, it is called a(n) keto pentose.

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1 year ago
Parts of Dalton’s atomic theory were disproved. Do you think that this should be taken as a criticism of Dalton as a scientist?
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No because he did have a small idea allowing later more educated scientist in more modern times to review and find mistakes. This allowed scientist in more modern times to also have develop theories. Every idea needs fixing and this is one. Since he was first to know about such atoms and making the "plum pudding model", he gave scientists some thoughts or possible ideas as to what a substance would be like after its last piece.

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Could an ionic bond form between two cations
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No cations are both positive. An ionic bond has to have a positive and negative to form. Or a metal and a nonmetal if that helps.
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