Answer: b suspension
a suspension is a heterogeneous mixture that contains solid particles sufficiently large for sedimentation . The particles may be
visible to the naked eye, usually must be larger than one micrometer , and will eventually settle, although the mixture is only classified as a suspension when and while the particles have not settled out. A suspension is a heterogeneous mixture in which the solute particles do not dissolve , but get suspended throughout the bulk of the solvent , left floating around freely in the medium. [1] The internal phase (solid) is dispersed throughout the external phase (fluid) through mechanical agitation , with the use of certain excipients or suspending agents.
An example of a suspension would be sand in water. The suspended particles are visible under a
microscope and will settle over time if left undisturbed. This distinguishes a suspension from a colloid , in which the suspended particles are smaller and do not settle.
Colloids and suspensions are different from
solution , in which the dissolved substance (solute) does not exist as a solid, and solvent and solute are homogeneously mixed.
Answer:
Chemical energy
Explanation:
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Answer:
- <em><u>2I ⁻ → I₂ + 2e⁻</u></em> describes the <em><u>oxidation.</u></em>
- <u><em>Cl₂ + 2e⁻ → 2Cl ⁻</em></u> describes the <u><em>reduction</em></u>.
Explanation:
<em>Oxidation-reduction reaction</em> is the simulaneous oxidation and reduction of the substances and is represented by two half-reactions.
The <em>oxidation</em> half-reaction is the loss of electrons, with the consequent increase in the oxidation state by the oxidized substance.
In this case, the process that shows the loss of electrons is:
That reaction shows:
- Two I⁻ ions lose two electrons (one each) to be oxidized to I₂.
- The change in the oxidation number is from -1 to 0.
- Hence this half-reaction is the oxidation reaction.
On the other hand, the <em>reduction</em> half-reaction is the gain of electrons, with the consequent reduction of the oxidation state by the reduced substance.
In this case, the process that shows the gain of electrons is:
That reaction shows:
- Two Cl atoms gain two electrons (one each) to be reduced to Cl⁻.
- The change in the oxidation number is from 0 to - 1.
- Hence, this half-reaction is the reduction reaction.
<u>Summary:</u>
- <em>2I ⁻ → I₂</em> + 2e⁻ describes the oxidation.
- <em>Cl₂ + 2e⁻ → 2Cl ⁻</em> describes the reduction.
You are at risk of getting on fire
And all you will hear is fire
