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melisa1 [442]
3 years ago
8

molecules that resemble fats but contain phosphate functional groups are called: a. steroids. b. polypeptides. c. phospholipids.

d. nucleic acid.
Chemistry
2 answers:
Rom4ik [11]3 years ago
8 0
The answer is C. Phospholipids because Lipids mean "Fat"
Rasek [7]3 years ago
3 0

Answer:

Phospholipids. (Ans. C)

Explanation:

Phospholipids are known as lipid molecules which containing waxes, fats, and some vitamins. Each molecule of phospholipid is made up of a phosphate group head, two fatty acids tails and a glycerol molecule. Phospholipid is main component of the cell membrane.

Fatty acid tails are made up of carbon and hydrogen where phosphate group head is made up of phosphorus molecule attached with four oxygen molecules. Glycerol is helping them to attached with each other.

Some function of phospholipids are:

1) Phospholipid is selectively permeable means semipermeable in nature.

2) Molecules which are dissolved in water can not pass through the membrane and molecules which are dissolved in fat can pass through the membrane.

3) Oxygen, urea, carbon dioxide and some molecules can easily pass through the cell membrane.

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Write the Lewis structure for the product that forms when boron trifluoride combines with ammonia. Remember to show all non-zero
horrorfan [7]

Answer:

To draw or sketch a Lewis structure, formula or diagram, the chemical formula of the compound is essential. Without it you can not even know what are the atoms that make it up, in our case it is the one observed in the reaction shown:

BF_{3} + :NH_{3} ⇒ F3F_{3} BNH_{3}

In the structure obtained (see the Lewis structure in the drawing) the black dots correspond to the electrons of the non-shared pairs.  Because hydrogen has a single electron and a single orbital available to fill, it forms only a covalent bond represented by a long dash.   The same goes for boron and fluorine but in this case the fluorine has pairs of free electrons.

Explanation:

Lewis's structure is all that representation of covalent bonds within a molecule or an ion. In it, said bonds and electrons are represented by long dots or dashes, although most of the times the dots correspond to non-shared electrons and dashes to covalent bonds.

All existing compounds can be represented by Lewis structures, giving a first approximation of how the molecule or ions could be.

8 0
3 years ago
How many moles of carbon dioxide are present in 14g of co2
Tomtit [17]

0.32 moles

You just do 14/ 44.01 (the atomic mass of carbon + oxygen's atomic massX2)

8 0
3 years ago
How many moles of iron is needed to react completely with 5.00 moles of sulfur to form iron
Ghella [55]

Answer:

5 moles of Fe(II) are required to react completely with the 5 moles of Sulphur

Explanation:

The balanced equation in this question is

Iron + Sulfur = Iron(II) Sulfide

Fe (II) + S --> Fe(II)S

Thus one mole of sulfur reacts with one mole of Fe(II)

Hence, 5 moles of Fe(II) are required to react completely with the 5 moles of Sulphur

3 0
3 years ago
Why does magnesium have a larger atomic radius that chlorine
sesenic [268]

Magnesium AR: 150 pm

Chlorine AR: 100 pm


8 0
4 years ago
Oceanic crust
ludmilkaskok [199]

Answer: It would be C

7 0
3 years ago
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