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Yakvenalex [24]
3 years ago
5

List out the major factors affecting rate of a chemical reaction

Chemistry
1 answer:
gtnhenbr [62]3 years ago
7 0

The factors that affect reaction rates are:

  1. surface area of a solid reactant.
  2. concentration or pressure of a reactant.
  3. temperature.
  4. nature of the reactants.
  5. presence/absence of a catalyst.

Hope this helps! Stay safe :))))

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Acid rain.

Explanation:

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It is often necessary to prepare a dilute solution from a more concentrated solution rather than starting from a solid and just
valina [46]

Answer:

Take 10.0mL of your original solution and dilute it to 100.0mL and then, take 5.0mL of this solution and dilute it in another flask to 100.0mL

Explanation:

The initial solution of 0.3g of Red dye in 100mL has a concentration of:

0.3g Red dye × (1mol / 869g) = 3.4x10⁻⁴ mol Red Dye in 100mL = 0.100L:

3.4x10⁻⁴ mol / 0.1L = 3.4x10⁻³M

As you want a 1.7x10⁻⁵M solution, you need to dilute your solution:

3.4x10⁻³M / 1.7x10⁻⁵M = 200 times

Having this in mind, you must find the dilutions you must make to achieve the 200 of dilution factor (<em>Dilution factor is how many times you dilute a solution from a concetrated form).</em>

If you dilute the original solution taking 10.0mL to 100.0mL you dilute the solution: 100.0mL / 10.0mL = <em>10 times.</em>

Now, you need to dilute this solution another 20 times to achieve the 10*20 = 200 times of dilution.

If you take 5.0mL of the last solution and dilute it to 100.0mL you are diluting the solution 100.0mL / 5.0mL = <em>20 times.</em>

The dilution is:

3.4x10⁻³M × (10.0mL / 100.0mL) × (5.0mL / 100.0mL) = 1.7x10⁻⁵M

Thus, to obtain the 1.7x10⁻⁵M solutionyou need to:

<h3>Take 10.0mL of your original solution and dilute it to 100.0mL and then, take 5.0mL of this solution and dilute it in another flask to 100.0mL</h3>
8 0
3 years ago
What is the formula for calcium chloride?<br><br><br> Ca2Cl<br><br> CaCl<br><br> CaCl2<br><br> CaCl3
djyliett [7]
<em>Hello there, and thank you for asking your question here on brainly.

The answer to this is Answer choice C: CaCl2

</em>Hope this helped you! ♥<em>
</em>
8 0
3 years ago
Read 2 more answers
PH
Orlov [11]

Explanation:

A chemical property is defined as the property that brings changes in chemical composition of a substance.

For example, flammability, combustion, reactivity, electronegativity etc are allchemical properties.

On the other hand, a property that does not bring any change in chemical composition of a substance is known as a physical property.

For example, shape, size, mass, density etc are all physical properties.

Thus, we can conclude that these may all be classified as chemical properties of a substance.

5 0
3 years ago
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