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Gnoma [55]
3 years ago
10

7) Cooking or baking food results in a _________________ change

Chemistry
1 answer:
Flauer [41]3 years ago
6 0
I think the answer is chemical change
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Why did the flame of the burning match or splint go out sodium carbonate and hcl?
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3 years ago
Please help me I will do anything can you please show your work
oee [108]

Answer:

(1) 720 seconds (2) 10800 seconds (3) 17 dozens (4) 1.45 x 10^{25} (5) 13.29 moles

Explanation:

(1) 720 seconds

1 minute = 60 seconds

12 minutes = 720 seconds   (12 x 60)

(2) 10800 seconds

1 hour = 60 minutes  1 minute = 60 seconds

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(3) 17 dozens

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8.00 moles CO2 x \frac{3 moles atoms}{1 moles CO2} = 24.0 moles atoms

24.0 moles x \frac{6.022 × 10^{23}  }{1 mole} } = 1.45 x 10^{25}

(5) 13.29 moles

sorry but I'm not fully sure if this one is correct

8 x 10^{24} x \frac{1 mole}{6.02 × 10^{23} } = 13.29 moles

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3 years ago
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irina [24]

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different elements have different number of electrons and shells/orbits thatswhy it have different atomic mass and size.

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