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3 years ago

Why do we crush solids before putting them into a solvent?

2 answers:

7 0

The answer is to increase the surface area of the solute.
You see it dissolves faster because there is a lot more water touching it when it is has a higher surface area.This can be achieved by crushing

Arisa [49]3 years ago

5 0

Answer: Option (c) is the correct answer.

Explanation:

When we crush a solute then there will be increase in number of solute particles. This means that there is increase in surface area of solute particles.

Hence, more is the surface area of solute particles more will be the collisions between solute and solvent particles. Therefore, more will be rate of reaction.

Thus, we can conclude that we crush solids before putting them into a solvent to increase the surface area of the solute.

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10.Using the below valency chart, write chemical formula for aluminum oxide and

sweet [91]

The chemical formula of aluminum chloride is AlCl₃ and the chemical formula of aluminum oxide is Al₂O₃.

<h3>Aluminum chloride</h3>

The chemical formula of aluminum chloride is written as;

Al³⁺ + Cl⁻ → AlCl₃

<h3>Aluminum oxide</h3>

The chemical formula of aluminum oxide is written as;

Al³⁺ + O²⁻ → Al₂O₃

Thus, the chemical formula of aluminum chloride is AlCl₃ and the chemical formula of aluminum oxide is Al₂O₃.

Learn more about chemical formula here: brainly.com/question/26388921

#SPJ1

5 0

1 year ago

Explain why Cl, is an element and NOT a compound.

GarryVolchara [31]

Answer:

Cl is not a compound because compounds are made up of atoms from MORE than one element. Since Cl is a singular element is cannot be a compound

Explanation:

Just think of it as Compounds are always more than one elements are always Single

4 0

2 years ago

Read 2 more answers

From the Henderson-Hasselbalch equation, explain how the ratio [Al/[HA] changes with changing pH

Kryger [21]

Answer:

The ratio [A-]/[HA] increase when the pH increase and the ratio decrease when the pH decrease.

Explanation:

Every weak acid or base is at equilibrium with its conjugate base or acid respectively when it is dissolved in water.

$HA + H_{2}O$ ⇄ $A^{-} + H_{3}O^{+}$

This equilibrium depends on the molecule and it acidic constant (Ka). The Henderson-Hasselbalch equation,

$pH = pKa + Log \frac{[A^{-}]}{[HA]}$

shows the dependency between the pH of the solution, the pKa and the concentration of the species. If the pH decreases the concentration of protons will increase and the ratio between A- and AH will decrease. Instead, if the pH increases the concentration of protons will decreases and the ratio between A- and AH will increase.

5 0

3 years ago

If salt is dissolved in water, water serves as the:

NemiM [27]

B. solvent

solute is the substance being dissolved

5 0

3 years ago

Can someone help me thank you. I have to look at each picture and determine if the circuits shown are series circuits or paralle

rodikova [14]

Answer:

I believe it may be-

1. Series

2. Parallel

3. Parallel

4. Series

Explanation:

In a series circuit, electricity only has one path to follow while a parallel circuit has more than one path to follow.

7 0

2 years ago