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shepuryov [24]
3 years ago
7

Complex chemical catalysts produced by living cells are called enzymes. true false

Chemistry
2 answers:
SIZIF [17.4K]3 years ago
7 0
True 
Enzymes help the body in digestion and other bodily functions which involve chemicals.
Grace [21]3 years ago
5 0
This statement is true. Complex chemical catalysts produced by living cells are enzymes. 
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Sound waves transfer energy by the motion of particles

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2 years ago
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How many CaH2 formula units are present in 8.294 g of CaH2?
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Draw an ether that contains exactly five carbon atoms and only single bonds
Eddi Din [679]

<em>Answer:</em>

  •                                       H3CH2COCH2CH2CH3

<em>Ether:</em>

Ether are organic compounds that contain ether functional group , in which oxygen atom is connected with two alkyl or aryl group.

They have general formula as follow

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            while  R = Alkyl

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2 years ago
In order to dry wet clothes, we spread them on a clothline. This is because (i) spreading increases surface area (ii) clothes be
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3 0
3 years ago
Consider the perbromate anion. What is the central atom? Enter its chemical symbol. How many lone pairs are around the central a
Yanka [14]

Answer:

See explanation

Explanation:

The central atom in the perbromate ion is bromine. The chemical symbol of bromine is Br. There are no lone pairs around the central bromine atom. The ion is tetrahedral in shape hence we expect a bond angle of 109°. 27 which is the ideal tetrahedral bond angle. The actual bond angle of the prebromate ion is 109.5°. The perbromate ion is BrO4^-

The observed bond angle is very close to the ideal value because of the absence of lone pairs of electrons from the central atom in the ion.

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3 years ago
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