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Serjik [45]
3 years ago
10

You decided you want to make spaghetti for supper. You first light the gas stove because you need to cook the meat. When the mea

t is cooked, you add sauce to it. Then you put a pot of water on the stove to get it boiling. The next step is putting the spaghetti noodles in to boil. Finally, you drain the spaghetti noodles and add the sauce. Which of the following describes the chemical changes happening?
A Cooking the meat and boiling the water are both chemical changes.
B Lighting the stove and cooking the meat are both chemical changes.
C Light the stove with a match and boiling the noodles are both chemical changes.
D Mixing the pasta sauce with the meat and boiling the noodles are both chemical changes.
Chemistry
2 answers:
zloy xaker [14]3 years ago
7 0

Answer:

C

Explanation:

Brainliest

777dan777 [17]3 years ago
6 0
C Light the stove with a match and boiling the noodles are both chemical changes
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klio [65]

Answer:

Kp=3.07x10^6

Explanation:

Hello,

In this case, by knowing the given reference reactions, one could rearrange them as follows:

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N_2(g) + 2O_2(g) \leftrightarrow 2NO_2(g);Kp_3=(8.4x10^{-7})^2=7.056x10^{-13}

Subsequently, to obtain the main reaction, we add the aforementioned reference rearranged reactions as shown below (just as reference):

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Consequently, the equilibrium constant is computed as:

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