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Setler79 [48]
3 years ago
15

Is cotton a synthetic material or a natural material? and why not​

Chemistry
1 answer:
Svet_ta [14]3 years ago
6 0

Answer:

Natural

Explanation:

Because synthetics are man made but cotton is plant based

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Which statements describe how heat flows in foil? Check all that apply. Heat flows in all directions. Heat flows from left to ri
docker41 [41]

Answer:

A D F

Explanation:

Its right but its not in order But its A D and F

3 0
2 years ago
1. The most useful ore of aluminum is bauxite, in which Al is present as hydrated oxides, Al2O3⋅xH2O The number of kilowatt-hour
lianna [129]

*Answer:

Option A: 59.6

Explanation:

Step 1: Data given

Mass of aluminium = 4.00 kg

The applied emf = 5.00 V

watts = volts * amperes

Step 2: Calculate amperes

equivalent mass of aluminum = 27 / 3 = 9  

mass of deposit = (equivalent mass x amperes x seconds) / 96500

4000 grams = (9* amperes * seconds) / 96500

amperes * seconds = 42888888.9

1 hour = 3600 seconds

amperes * hours = 42888888.9 / 3600 = 11913.6

amperes = 11913.6 / hours

Step 3: Calculate kilowatts

watts = 5 * 11913.6 / hours

watts = 59568 (per hour)

kilowatts = 59.6 (per hour)

The number of kilowatt-hours of electricity required to produce 4.00kg of aluminum from electrolysis of compounds from bauxite is 59.6 kWh when the applied emf is 5.00V

5 0
2 years ago
The name of Earth's single, huge continent from over 250 million years ago is (1 point)
babunello [35]
The answer is pangea.
5 0
3 years ago
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Why the partial charge on H in HF is more positive than the partial charge on H in HBr
erik [133]
Because fluorine has a higher electronegativity
8 0
3 years ago
Prove how the Law Conservation of Mass and Enery apply to Cellular Respiration​
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Answer:

mass and energy is reused when those things happen

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3 years ago
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