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Misha Larkins [42]
3 years ago
10

Human saliva has a pH of about 6.50. Which term BEST describes this solution?

Chemistry
1 answer:
zaharov [31]3 years ago
3 0
6.5 is slightly acidic - so the answer is B.
This is due to 7 being neutral
7-14 is basic
0-7 is acidic
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What is it called when an enzyme changes shape
7nadin3 [17]

Answer: Induced Fit

Explanation: The process wherein the enzymes change their shape is called as induced fit. It is the precision aligning of enzymes essential for catalytic activity which is caused by the binding of the substrate as enzymes possess active sites. Hence, as the substrate approaches the enzymes, the enzyme alters its shape.

4 0
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If an object absorbs all colors but blue, what color would it appear to be?
denis-greek [22]
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5 0
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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

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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
PLZ HELP
nika2105 [10]
Mjdksksksnsjdkjdjsksksjdndnd
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3. Explain the relationship between power, energy and time.
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Hope this helps :)
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