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astraxan [27]
3 years ago
14

Describe how mixtures relate to substances

Chemistry
1 answer:
Svetach [21]3 years ago
8 0
All Matter can be Classified into two Categories pure substances and mixtures a pure substance consists of a single element or compound a mixture however is made up of differ
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When working with food, personal items such as a cell phone should be
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prohibited because of germs that are on your phone.

Explanation:

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Which statement best explains why cells separate and expel waste?
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  1. I would say the 2nd one It helps growth and repair of cells of orgasms
  2. But your school would probably say the 3rd one It helps remove toxins from the body to maintain homeostasis

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2. Our cells produce a lot of waste that must be eliminated (excreted) from the body. These residues are called excreta. The residues formed from the chemical reactions that take place inside the cells can be eliminated through:

• of the respiratory system (carbon dioxide)

• skin (sweat)

urinary system (urine)

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3 years ago
A simple way to estimate whether a molecule is a strong electrolyte, a weak electrolyte, or a nonelectrolyte is to examine an eq
borishaifa [10]

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Explanation:

We classify the behaviours of electrolytes based on their electrolytic conduction. This is what makes them breaks down when in aqueous solutions with water.

A strong electrolyte is one that ionize completely when in aqueous solutions. Their ionization can be shown below using appropriate chemical notation:

   An example of a strong electrolyte is NaCl:

                NaCl _{aq} → Na⁺_{aq} + Cl⁻_{aq}

Such reactions have a single forward arrow. Since they ionize complete, they have a large amoung of ions present in their aqueous form and would readily conduct.

A weak electrolyte is made up of compounds that ionize partially or slightly in their aqueous solution. The amount of ions produced per mole of compounds is relatively small compared to those of strong electrolytes. Examples ae organic acids, weak bases, and water. This ionization is shown below for methanoic acid:

    HCOOH_{aq} ⇄ HCOO⁻_{aq} + H⁺_{aq}

This sort of reaction is an equilibrium reaction. This is why we have the double arrow.

None electrolytes do not ionize at all in aqueous solutions and they produce no ions.

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Proteins...
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All of the above (#4)
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Explain how growth in different from development
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In growth you can see a change. In developing it takes time.
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