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Marizza181 [45]
2 years ago
13

IBNEED HELP ASAP NO BULL I NEED ACTUAL HELP

Chemistry
1 answer:
Alja [10]2 years ago
5 0

Answer:

god says dont use any assault language okay?

Explanation:

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Urgent! <br> which element do you think has a greater mass? cadmium or zinc?
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Answer:

zinc

Explanation:

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2 years ago
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A plasma membrane and a cell wall _____.
klemol [59]
<h3><u>Answer;</u></h3>

<em>D. Have different structures and different functions</em>

A plasma membrane and a cell wall <em><u>have different structures and different functions</u></em>.

<h3><u>Explanation;</u></h3>
  • <em><u>Plasma membrane</u></em> is a structure that is found in <u><em>both animal cell and plants cells</em></u>. It is made up of a <u><em>bi-layer consisting of lipid and proteins</em></u>. Plasma membrane are semi-permeable which means the<em><u> allow selective movement of materials in and out of the cell. </u></em>
  • <em><u>Cell wall</u></em>, on the other hand is a structure that is found on plant cells and lacks in animal cell. It <em><u>contains cellulose in its structure </u></em>which enables it to be rigid and enhances it <em><u>protect the cell from mechanical damage</u></em> from harsh conditions such as pressure in the outside environment.

5 0
3 years ago
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A sample of a chromium-containing alloy weighing 3.450 g was dissolved in acid, and all the chromium in the sample was oxidized
Zina [86]

Answer:

H_2O + 2CrO_4^2- + 3SO_3^2- -> 3SO_3^2- + 2CrO_2^- + 2OH^-

Explanation:

Reduction half reaction

2H_2O + CrO_4^2- + 3e -> CrO_2^- + 4OH^-

Oxidation half reaction

2OH^- + SO_3^2- -> SO_4^2- + H_2O + 2e

Balanced overall equation

H_2O + 2CrO_4^2- + 3SO_3^2- -> 3SO_3^2- + 2CrO_2^- + 2OH^-

 

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3 years ago
Balance the equation Al 2 O 3 + Cl 2 + C ----&gt; AlCl 3 + CO
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Al2O3 + 3Cl2 + 3 C → 2 AlCl3 + 3 CO

Explanation:

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Which of the following biological macromolecule is correctly paired with its main function in the body?
daser333 [38]
Answer is: Proteins-growth and repair of cellular structures.
Proteins are macromolecules made of amino acids (usually 20 amino acids) and they are main structure molecules of all living cells.
Lipids and sugars (glucose) are main source of energy in every living organism and they are used as the cell's energy reserves.
6 0
3 years ago
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