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Rom4ik [11]
3 years ago
5

Rita was sitting in the garden and reading a book a sudden breeze went by her and she sneezed this reaction is a type of __ ? ac

tion (involuntary,voluntary)
In this case Rita’s response was controlled by her___?(brain heart or nerves)
Chemistry
2 answers:
julsineya [31]3 years ago
6 0
Involuntary and the brain, because the stem controls involuntary reactions
yawa3891 [41]3 years ago
5 0

Answer:

Involuntary, brain

Explanation:

Involuntary functions are not within our control such as heart beat, digestion of food, breathing and more.  

All involuntary actions are controlled by the medulla oblongata which is located in the brain stem.  

On the other hand all voluntary actions performed by the skeletal muscle is controlled by the somatic nervous system.

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what is the boiling point of the solution resulted from the dissolving of 32.5g of NaCl in 250.0g of water?
suter [353]

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The boiling point of this solution is 102.28 °C

Explanation:

<u>Step 1:</u> Data given

Mass of Nacl = 32.5 grams

Molar mass of NaCl = 58.45 g/mol

Mass of Water = 250 grams

Boiling point of water = 100°C

<u>Step 2: </u>Calculate number of moles

Number of moles = mass of NaCl / Molar mass of NaCl

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<u>Step 3:</u> Calculate molality

Molality = Number of moles / mass of water

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Step 4: Calculate boiling point

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