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KatRina [158]
3 years ago
6

What is a kind of biochemical that does not dissolve in water and makes up cell walls fats oils and waxes?

Chemistry
1 answer:
posledela3 years ago
5 0
Lipids is a kind of biochemical that does not dissolve in water and makes up the cell walls fats oil and waxes
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Nnbvcvbnm,.,mnbvcxcvbjklkjhvbn
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This are letters of the alphabet some are periods and some are commas also they do not form any words or meaning
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3 0
3 years ago
2Pb(s) + O2(aq) + 4H+(aq) → 2H2O(l) + 2Pb2+(aq)
defon

Answer:

The answer to your question is 0.269 g of Pb

Explanation:

Data

Lead solution = 0.000013 M

Volume = 100 L

mass = 0.269 g

atomic mass Pb = 207.2 g

Chemical reaction

                        2Pb(s) + O₂(aq) + 4H⁺(aq) → 2H₂O(l) + 2Pb₂⁺(aq)

Process

1.- Calculate the mass of Pb in solution

Formula

Molarity = \frac{number of moles}{volume}

Solve for number of moles

Number of moles = Volume x Molarity

Substitution

Number of moles = 100 x 0.000013

Number of moles = 0.0013

2.- Calculate the mass of Pb formed.

                       207.2 g of Pb ----------------- 1 mol

                             x g             ----------------- 0.0013 moles

                        x = (0.0013 x 207.2) / 1

                        x = 0.269 g of Pb                                                                

8 0
3 years ago
Read 2 more answers
Many bacteria cannot reproduce and cooler temperatures in our destroyed at high temperatures. How do you humans take advantage o
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freezer and refrigerator too cold for most bacteria to grow .oven too hot for bacteria to survive

3 0
3 years ago
Please answer for brainliest and if your answer is correct I'll give extra points. screenshot of the question is below.
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Concentration - 3

Phase - 1

Catalyst - 4

Surface area - 2

8 0
2 years ago
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An aqueous solution of sodium
DochEvi [55]

Answer:

2.5×10^-7mol/dm^3

Explanation:

Firstly convert the cm^3 to dm^3

200×1000=200000dm^3

Calculate the g/dm^3

2/200000=0.00001g/dm^3

To calculate mol/dm^3

Mol/dm^3=mass given\molar mass

=0.00001/40

=2.5×10^-7mol/dm^3

8 0
3 years ago
Read 2 more answers
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