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3 years ago

Skin cells _____.

1 answer:

5 0

Hey, the two answers that would best fit in the blank would be B.) reproduce by mitosis & D.) Have 46 chromosome pairs.

Sentence form: Skin cells reproduce by mitosis and have 46 chromosome pairs.

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In lewis structures, a solid line is used to represent...

sashaice [31]

Answer:

in lewis structure, a solid line is usually used to represent a bond between the atoms

Explanation:

the dots that are shown around the atom represent the valence electrons on the outer shell

when there are multiple atoms, either a pair of dots circled (one dot from each atom) or a solid line is used to show the bonds between those atoms

5 0

3 years ago

Determine which of the following contains the greatest mass of aluminium: 122 g of AlPO4, 266 g of A12C16, or 225 g of

pav-90 [236]

Answer : The $Al_2S_3$ contains the greatest mass of aluminum.

Explanation :

For $AlPO_4$ :

Molar mass of $AlPO_4$ = 122 g/mole

Molar mass of aluminium = 27 g/mole

As, 122 g of $AlPO_4$ contains 27 g of Al

So, 122 g of $AlPO_4$ contains $\frac{122}{122}\times 27=27g$ of Al

The mass of 'Al' in $AlPO_4$ is, 27 grams.

For $Al_2Cl_6$ :

Molar mass of $Al_2Cl_6$ = 266.7 g/mole

Molar mass of aluminium = 27 g/mole

As, 266.7 g of $Al_2Cl_6$ contains $2\times 27g$ of Al

So, 266 g of $Al_2Cl_6$ contains $\frac{266}{266.7}\times 2\times 27=54g$ of Al

The mass of 'Al' in $Al_2Cl_6$ is, 54 grams.

For $Al_2S_3$ :

Molar mass of $Al_2S_3$ = 150 g/mole

Molar mass of aluminium = 27 g/mole

As, 150 g of $Al_2S_3$ contains $2\times 27g$ of Al

So, 225 g of $Al_2S_3$ contains $\frac{225}{150}\times 2\times 27=81g$ of Al

The mass of 'Al' in $Al_2S_3$ is, 81 grams.

Hence, from this we conclude that $Al_2S_3$ contains the greatest mass of aluminum.

5 0

3 years ago

Explain why kerosene is used to remove stains from clothes

yarga [219]

Answer:

White spirits (used in lighter fluid), turpentine and Kerosene can cope with fat/oil stains, tar/asphalt and some adhesives. Many pre-wash spot treatments contain solvents. Mild Acids - such as white vinegar, cream of tartar or lemon juice help remove rust and some food stains.

Hope This Helps This Is All I Know!!

5 0

4 years ago

Kinetic energy and potential energy are often considered to be forms of mechanical energy. List three other forms of energy and

mafiozo [28]

Solar Energy: source Sun
Nuclear Energy: source:fission of Uranium nucleus

Sound Energy: source: Loudspeakers

6 0

3 years ago

Which describes the state at which products form at the same rate as reactants?

swat32

Chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time.
Or, we can say that in chemical equilibrium the ratio between the concentration of the reactants and the products is constant.
Chemical equilibrium is a result state when the forward reaction proceeds at the same rate as the reverse reaction.
Different reactions have different equilibrium.

8 0

3 years ago

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