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Gala2k [10]
3 years ago
7

Erica is working in the lab. She wants to remove the fine dust particles suspended in a sample of oil. Which method is she most

likely to use?
A reverse osmosis
B osmosis
C filtration
D dilution
Chemistry
2 answers:
BARSIC [14]3 years ago
7 0
Option a is right answer that is reverse osmosis.
Veseljchak [2.6K]3 years ago
4 0

The correct option is A.

Reverse osmosis is a special type of filtration, which involves the passing of a solvent through a semi permeable membrane in the direction that is opposite to that of natural osmosis. Pressure is always used in this process to enforce separation. The method is usually used to remove ions, fine dust particles, molecules and larger particles from solvents. The method is especially popular in water treatment and purification.

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The secondary structure of a protein is distinct from the tertiary structure of a protein mainly because the secondary structure
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Answer:

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Explanation:

The primary structure of a protein refer to the amino acid sequence. The secondary structure of a protein refer to the alpha helices, beta sheets and turns, while the tertiary structure refer to folding of the sheets due to hydrogen bonding or other bonding interaction between them.

4 0
3 years ago
What are the four symbols for physical states of reactants and products?
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Solid -(s)
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What is the formula for calcium fluoride​
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Answer:

CaF_{2}

Explanation:

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7 0
3 years ago
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9.31g is the same mass as ?
Dmitry_Shevchenko [17]

Answer:

9.31 g = 0.00931 kg

Explanation:

We need to tell that 9.31 gram is same as what. There are many units that measure the meass of an object like milligram, kilogram, centigram etc.

The relation between kilogram and gram is as follows :

1 kg = 1000 g

or

1 g = 0.001 kg

If we change 9.31 gram to kg, we get :

9.31 g = (9.31 × 0.001) kg

or

9.31\ g=9.31\times 10^{-3}\ kg\\\\=0.00931\ kg

Hence, 9.31 g is the same mass as 0.00931 kg.

7 0
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What number completes the missing part of this nuclear equation?:
hammer [34]

Answer:

hi

Explanation:

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