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ollegr [7]
3 years ago
11

The diagram above represents a reflex arc in a human. This pathway responds when someone touches something that causes pain, suc

h as a hot stove. Which of the following shows the correct order of the body systems involved in this response?
A) Integumentary, respiratory, digestive
B) Circulatory, respiratory, nervous
C) Integumentary, nervous, muscular
D) Circulatory, digestive, nervous
Chemistry
1 answer:
Vinil7 [7]3 years ago
4 0

Answer:

C) Integumentary, nervous, muscular

Explanation:

When a human body touches a hot stove , our sense organ which is integumen first of all receives the impulse of heat . The impulse is transformed into electrical signal which is transmitted to brain which is a part of nervous system . Then brain processes it and command signal is sent to muscle of hand to move it away from that place . Hence the order is

Integumentary, nervous, muscular .

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Marysya12 [62]
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4 0
2 years ago
The molar heat of vaporization of water is 40.7kJ/mol. How much heat must be absorbed to convert 50.0 grams of liquid water at 1
EleoNora [17]
During a phase change the temperature does not change since all of the heat is being absorbed in order to break the intermolecular forces.  Due to that, the formula will not need to have T in it and is actually q=nΔH(v).
n=the number of moles (in this case 2.778mol of water since you divide 50g by 18g/mol).
ΔH(v)=the molar heat of vaporization (in this case 40.7kJ/mol).
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q=113.1kJ
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I hope this helps.  Let me know if anything is unclear.

4 0
3 years ago
How many moles are there in 35.2g of Gold?
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Explanation:

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A chemist burns 0.8 g of iron in oxygen.
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Answer:

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7 0
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What type of reaction is this?—- Large Compound=Element A+Element B
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