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Minchanka [31]
2 years ago
11

When a substance dissociates into OH- ions, they are classified as ________ ?

Chemistry
1 answer:
djyliett [7]2 years ago
4 0
When a substance dissociates into OH- ions, they are classified as bases.
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1) When elements combine to form compounds:
vodomira [7]

Answer:

B

Explanation:

when elements reacts to form a compound the elements properties changes completely. This happens due to the fact that a chemical reaction has taken place. In a chemical change new substances are formed and the properties of the products differ entirely from that of the reactant.

for example if hydrogen combines with oxygen to form water, the property of hydrogen differs from oxygen and also both differs chemically when compared to water.

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3 years ago
List down some examples of matters based on its physical state (Solid,
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Answer:

Examples of Solids

1. Brick

2. coin

3. Iron bar

4. rock

5. wood

Examples of Liquids

1. Blood

2. Honey

3. Wine

4. Water

5. oil

Examples of Gases

A gas does not have a defined shape or volume, so it can expand to fill any size or shape of a container. Particles in gases are widely separated, compared to those in liquids and solids.

Explanation:

5 0
2 years ago
The most common physical state of the elements is
Ratling [72]

Answer:

Solids.

Explanation: Most elements are solids, only 11 are gases and 2 are liquids.

3 0
3 years ago
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The simplest structures that can carry out all of the activities characteristics of life are?
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Cells
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4 0
3 years ago
Predict the effect of removing chloride ions Now remove some of the free chloride ions by adding some silver nitrate (Hint: add
mixer [17]

The addition of silver nitrate will favor the forward reaction which is the precipitation of AgCl.

The addition of HCl will favor the formation of free chloride ions.

The given reaction is exothermic.

<h3>What is the effect in equilibrium when free chloride ions are removed from the precipitation reaction of silver chloride?</h3>

A precipitation reaction is a reaction in which an insoluble compound is obtained when two solutions of salt are mixed together.

In the given precipitation reaction, the equilibrium equation is given as follows:

AgNO₃ (aq)  ⇄ Ag⁺ (aq) + NO₃⁻ (aq)

Ag⁺ (aq) + Cl⁻ (aq) ⇄ AgCl

AgNO₃ (aq) + Cl⁻ (aq) ⇄ AgCl (s) + NO₃⁻ (aq)

From the equation above, the removal of the free chloride ions will favor the formation of the product, silver chloride, AgCl, and the dissociation of more AgNO₃ (aq).

The reaction is an endothermic reaction.

Now when HCl is added to the reaction, there are more the reaction will favor the dissociation of HCl to form free chloride ions as seen in the equation below:

HCl (aq) ⇄ H⁺ (aq) + Cl⁻ (aq)

The reaction is an exothermic reaction.

Learn more about endothermic and exothermic reactions at: brainly.com/question/6357350

#SPJ1

7 0
10 months ago
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