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3 years ago

Identify each of the following mixtures as either homogeneous or heterogeneous and as a solution, a suspension, or a colloid.

Chemistry

2 answers:

stiv31 [10]3 years ago

8 0

both are heterogenous and suspension. Yes they are the same.

Sergeeva-Olga [200]3 years ago

4 0

Blood.

Blood is heterogeneous because it has corpuscles (blood cells and platelets) physically suspended in blood plasma. Blood plasma and the corpuscles have different properties and can be separated by methods such as centrifugation. Also, blood is considered a colloid suspension because it has the properties of both a colloid and a suspension. This is because the blood plasma acts as a colloid. More so, if blood was left to settle,then the blood cells would collect at the bottom hence taking the characteristic of a suspension.

Salad dressing.

Depending on the type of salad, it can either be a heterogeneous or homogeneous mixture. If the salad dressing is only of vinegar or any other oil, then it is a homogenous mixture. However, if it involves a mixture of vinegar and other oils, pepper, herbs, and etcetera, then it is a heterogeneous mixture

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NEED THE ANSWER !!! NOW i have like an hour

ryzh [129]

Answer No 1:

The chemical model that is flawed is:

4 C2 + S8 → 4 CS2

In this reaction, there are more number of carbon atoms in the reactants but lesser number of cabon atoms in the products. For a reaction to be balanced, there should be the same number of atoms in the reactants and products. Hence, option A does not represent a balanced equation.

Answer No 2:

The correct option is B) The model shows an unbalanced number of carbon atoms.

Consider the equation:

4 C2 + S8 → 4 CS2

In the reactants side of the equation, there are 8 atoms of carbon. In the products side there are only four carbon atoms. This shows that this equation in not balanced because of the carbon atoms.

The number of sulfur atoms remains same before the reaction and after the reaction. There are eight sulfur atoms in the reactants as well as products.

7 0

3 years ago

How does concentration affect reaction rate

Scorpion4ik [409]

Answer:

A higher concentration of a catalyst will speed up the reaction rate.

4 0

3 years ago

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All cells in living organisms undergo cellular respiration. The chemical reaction for cellular respiration is stated below. (Glu

Ne4ueva [31]

Answer : The total mass of carbon dioxide and water produced will be, 65.7 grams.

Explanation :

Law of conservation of mass : It states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

The balanced chemical reaction will be,

$C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O$

According to the law of conservation of mass,

Total mass of reactant side = Total mass of product side

Total mass of $C_6H_{12}O_6+6O_2$ = Total mass of $6CO_2+6H_2O$

As we are given :

Total mass of $C_6H_{12}O_6+6O_2$ = 65.7 grams

So,

65.7 grams = Total mass of $6CO_2+6H_2O$

Therefore, the total mass of carbon dioxide and water produced will be, 65.7 grams.

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4 years ago

How are plate tectonics and the rock cycle connected

mote1985 [20]

Answer:

All igneous rocks the basis of the rock cycle are formed by plate tectonics. ... The heat from the mantle that fuels plate tectonics causes both igneous and sedimentary rocks to be turned into metamorphic rocks. The metamorphic rocks can be eroded into sedimentary rocks are remelted back into igneous.

Explanation:

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3 years ago

Why do crystals form during crystallisation

Mazyrski [523]

Answer: Crystallization is a technique which chemists use to purify solid compounds. Crystals often form in nature when liquids cool and start to harden. Certain molecules in the liquid gather together as they attempt to become stable. They do this in a uniform and repeating pattern that forms the crystal. The process is based on the principles of solubility: compounds (solutes) tend to be more soluble in hot liquids (solvents) than they are in cold liquids. If a saturated hot solution is allowed to cool, the solute is no longer soluble in the solvent and forms crystals of pure compound. Impurities are excluded from the growing crystals and the pure solid crystals can be separated from the dissolved impurities by filtration.
For an example the salt we get from seawater can have many impurities in it. Hence, the process of crystallization is in use to remove these impurities.

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3 0

2 years ago

Read 2 more answers