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Burka [1]
3 years ago
12

When a person is scared, the brain responds to the fear by directing the hormone adrenaline to be released. This is an example o

f the nervous system working with the -
Chemistry
1 answer:
tangare [24]3 years ago
3 0

Answer:

Adrenaline

Explanation:

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Describe how the molecular models you assembled are similar to real molecules.
mario62 [17]

Answer:

Atoms models are bigger but they don not match the true or positive way of atoms. to make them visible scientists make their models that resembled with the real ones.

Explanation:

Molecules are microscopic entities and only can be seen under a  microscope.

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Water has a density of 1.0 g/mL. Which of these objects will float in water
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Write an equation for the reaction of the Tollens reagent<br> withheptanal?
dangina [55]

Answer:

CH_3 CH_2 CH_2 CH_2 CH_2 CH_2 CHO + 2[Ag(NH_3)_2]+  3 H_2 O = CH_3 CH_2 CH_2 CH_2 CH_2 CH_2 COOH +2Ag + 4NH_3

Explanation:

Tollens test is carried out to perceive difference between aldehydes and ketones on the basis of their capability to oxidized easily.

when Tollens react with aldehyde (heptanal) , a silver mirror is form on inner side of container.

The reaction between tollens and heptanal is given as

CH_3 CH_2 CH_2 CH_2 CH_2 CH_2 CHO + 2[Ag(NH_3)_2]+ 3 H_2 O = CH_3 CH_2 CH_2 CH_2 CH_2 CH_2 COOH +2Ag + 4NH_3

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4 years ago
How many elements in C6H12O6
zysi [14]

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3

Explanation:

there are 3 different elements in sugar. just add up all the letters you see

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