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4 years ago

How does acetylcholine influence chemical and physical digestion?

2 answers:

6 0

How does acetylcholine influence chemical and physical digestion?

1.Chemical—triggers release of pancreatic enzyme; Physical—triggers stomach muscle contraction

Tems11 [23]4 years ago

5 0

<span>The answer seems to be: 1.Chemical—triggers release of pancreatic enzyme; Physical—triggers stomach muscle contraction. The second choice is wrong since </span>acetylcholine does not directly influence tongue contraction. The third choice is wrong because of the part "<span>Physical—triggers release of pancreatic enzyme" </span>

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Students find the pH of Substance A to be 2.1 and Substance B to be 4.4. They are told Substance C is less acidic than Substance

Slav-nsk [51]

Answer:

the range should be 2.2 to 4.3

Explanation:

I think so because the numbers at the left side of the scale from 1 are more acidic so as it increases it's still acidic but lesser so 1 is more acidic than 2 so I used 2.2 as the beginning of the range because it's less acidic than A even though its a greater number and 4.3 is lesser than 4.4 but its still greater on the scale. frankly speaking I don't feel so correct because it's in decimal so try and compare facts thank you

8 0

3 years ago

Write a balanced equation for the complete oxidation reaction that occurs when ethane burns in air

damaskus [11]

<h3>Balanced equation : 2C₂H₆ (g) + 7O₂ (g) ⟶ 4CO₂ (g) + 6H₂O (ℓ)</h3><h3>Further explanation</h3>

Alkanes are saturated hydrocarbons that have single bonds in chains

General formula for alkanes :

$\tt \large{\bold{C_nH_{2n+2}}$

Hydrocarbon combustion reactions (specifically alkanes)

$\large {\box {\bold{C_nH _ (_2_n _ + _ 2_) + \dfrac {3n + 1} {2} O_2 \Rightarrow nCO_2 + (n + 1) H_2O}}}$

So that the burning of ethane with air (oxygen):

$\tt C_2H_6+\dfrac{7}{2}O_2\rightarrow 2CO_2+3H_2O$

2C₂H₆ (g) + 7O₂ (g) ⟶ 4CO₂ (g) + 6H₂O (ℓ)

or we can use mathematical equations to solve equilibrium chemical equations by giving the coefficients for each compound involved in the reaction

C₂H₆ (g) + aO₂ (g) ⟶ bCO₂ (g) + cH₂O (ℓ)

C : left 2, right b ⇒ b=2

H: left 6, right 2c⇒ 2c=6⇒ c= 3

O : left 2a, right 2b+c⇒ 2a=2b+c⇒2a=2.2+3⇒2a=7⇒a=7/2

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4 years ago

PLEASEEE HELPPP MEEE

andrezito [222]

Answer:

yes the one that is circled is correct

Explanation:

4 0

3 years ago

Read 2 more answers

What group is the element NITROGEN in? 1 Group 4<br> 2 Group 5<br> 3 Group 2<br> 4 Group 8

Butoxors [25]

Answer:

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3 0

3 years ago

Read 2 more answers

the most likely explanation for the increase in average beak size of the medium ground finch is that the

Romashka-Z-Leto [24]

Answer:

Well according to the Law of Evolution, depending on where the Finch lives and what it eats depends on it's beak size. For example, if a Finch lives on the coast and eats small fruits it will have a short and stubby beak to peck at the fruits, but if the Finch ate crabs it's beak would be long to swoop down and pluck up crabs.

Hope this helps!

7 0

3 years ago