reactions Flashcards

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1
Q

What is a precipitation reaction?

A

When 2 aqueous solutions react together to form an insoluble solid.

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2
Q

Give an example of a precipitation reaction.

A

Lead nitrate + Sodium iodide → Lead iodide (precipitate) + Sodium nitrate.

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3
Q

What are soluble salts?

A

Soluble salts are salts that dissolve in water.

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4
Q

What are insoluble salts?

A

Insoluble salts are salts that do not dissolve in water and form a precipitate in a reaction.

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5
Q

How can precipitation reactions be used in industry?

A

They can be used to clean up waste effluent from factories by removing harmful substances.

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6
Q

What is a precipitate?

A

A precipitate is an insoluble solid that forms during a chemical reaction in solution.

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7
Q

What is a decomposition reaction?

A

A chemical reaction where a single substance is broken down into simpler compounds or elements.

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8
Q

How many reacting substances are involved in a decomposition reaction?

A

One reacting substance, which produces two or more product substance

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9
Q

Give an example of a decomposition reaction.

A

Copper carbonate → Copper oxide + Carbon dioxide.

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10
Q

What happens when an acid reacts with a carbonate?

A

The reaction produces a salt, water, and carbon dioxide gas.

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11
Q

What is the general product for metal oxides and carbon dioxide?

A

Metal oxides + Carbon dioxide → Metal carbonates.

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12
Q

What is the significance of decomposition reactions in chemistry?

A

They are important for breaking down compounds into their basic components for further use or analysis.

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13
Q

Can you give another example of a decomposition reaction?

A

Calcium carbonate → Calcium oxide + Carbon dioxide.

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14
Q

What is a neutralization reaction?

A

A chemical reaction where equal amounts of an acid and a base react with each other.

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15
Q

What are the products of a neutralization reaction?

A

The products are typically a salt and water.

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16
Q

How can acids and bases affect color in certain compounds?

A

Acids and bases can react with indicators (like litmus) to change their color, indicating a change in pH.

17
Q

Give an example of a neutralization reaction.

A

Hydrochloric acid + Sodium hydroxide → Sodium chloride (salt) + Water.

18
Q

Why are neutralization reactions important in everyday life?

A

They are used in various applications, such as treating acid spills and in antacids to neutralize stomach acid.

19
Q

what are combustion reactions?

A

a chemical reaction where a substance burns in oxygen gas to produce light and heat. therefore, its exothermic

20
Q

what are hydrocarbons

A

hydrocarbons are substances made of only hydrogen and carbon atoms.

21
Q

what is the combustion of hydrocarbon

A

carbon dioxide and water

22
Q

what is respiration

A

a chemical reaction that goes on inside the cells of all living things.

23
Q

what is corrosion

A

metals + oxygen gas = metal oxides like rusting of iron and its alloy steel

24
Q

what is thermal decomposition?

A

a substance is only broken down into components when heated

25
Q

how do we name ionic compounds?

A

name of cation followed by name of anion. e.g.g barium sulfate = barium cation +sulfate anion

26
Q

what are properties of acids and bases?

A

acids are highly corrosive and release hydrogen ions when dissolved in water. bases are caustic produce hydroxide ions.

27
Q

How can you test if hydrogen gas is produced in a reaction

A

The pop test

28
Q

How can u test if carbon dioxide gas is produced

A

The limewater experiment

29
Q

What do the following mean? S L G AQ

A

Solid liquid gas aqueous

30
Q

What is combustion reaction

A

Hydrocarbon and oxygen releases heat and light