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3 years ago

Antifreeze is added to a car's radiator to protect it. Which of the following

Chemistry

1 answer:

zhenek [66]3 years ago

5 0

Answer:

the correct answer is b antifreeze protects the radiator during summer in winter.

Explanation:

Antifreeze is (typically mixed with water) to help manage the engine during extreme temperatures. As the temperature fluctuates between hot and cold coolant is distributed throughout the engine block to sustain even operating temperature.

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How many molecules are there in 5.0g of C2H5OH?

Vilka [71]

About 6.5x10^22 molecules. (5g C2H5OH)x(1 mol C2H5OH/46g C2H5OH)x(6.02x10^23 molecules C2H5OH/1 mol C2H5OH)=(3.01E24)/46=6.5x10^22. Let me know if this helped!

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3 years ago

Which of the following is a chemical property? a

laiz [17]

The answer is A (The ability to react with oxygen)

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2 years ago

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14. Which of the following is produced when propane (C3H8) is combusted completely? (2 points)

Ymorist [56]

The following is produced when propane (C₃H₈) is combusted completely : H₂O

<h3>Further explanation </h3>

Complete combustion of Hydrocarbons with Oxygen will be obtained by CO₂ and H₂O compounds.

If O₂ is insufficient there will be incomplete combustion produced by CO and H and O

Hydrocarbon combustion reactions (especially alkanes) $\large {\boxed {\bold {C_nH _ (_2_n _ + _ 2_) + \frac {3n + 1} {2} O_2 \Rightarrow nCO_2 + (n + 1) H_2O}}}$

For combustion of propane C₃H₈ (n = 3) ⇒ completely(excess O₂) :

C₃H₈+5O₂⇒3CO₂+4H₂O

The products of combustion : CO₂ and H₂O

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2 years ago

Please help answer this 6 min left in class

vova2212 [387]

Answer:

not sure but i think is B

Explanation:

hope this help.

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2 years ago

In support of the Thirteenth Amendment, President Lincoln argued that

Zolol [24]

Answer:

Should be made illegal

Explanation:

Answer on Edge2020

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2 years ago

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