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Chemistry X > Reactions > Flashcards

Reactions Flashcards

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0
Q

What is the respiration word equation?

A

Sugar + oxygen -> carbon dioxide + water + (energy)

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1
Q

How much oxygen is in the air?
How much nitrogen is in the air?
How much argon is in the air?
How much carbon dioxide is in the air?

A

21%
78%
0.9%
0.037%

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2
Q

What is the rusting word equation?

A

Iron + water + oxygen -> hydrated iron (iii) oxide

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3
Q

What is the equation for burning a fuel?

A

Fuel + oxygen -> carbon dioxide + water + (energy)

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4
Q

What is the chemical test for water?

A

Anhydrous copper sulphate turns water blue

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5
Q

What is combustion?

A

When a fuel reacts with oxygen & releases energy

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6
Q

What is the equation for oxygen?
What are the chemicals needed to make oxygen?
What is the test for oxygen?
(((Diagram of making oxygen)))

A

Hydrogen peroxide -> water + oxygen
Hydrogen peroxide + (catalyst) manganese dioxide
Relights a glowing splint

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7
Q

What is a catalyst?

Examples?

A

Chemical that speeds up reaction without being used up

Enzymes, iron & manganese dioxide

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8
Q

What are the uses for oxygen?

A

Breathing apparatus
Welding
Rocket fuel

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9
Q 
What is the equation for carbon dioxide?
What is the test for carbon dioxide?
What are the uses of carbon dioxide?
What are the chemicals for making it?
(((Diagram of making carbon dioxide)))
A

Calcium carbonate + hydrochloric acid -> calcium chloride + water + carbon dioxide
Turns limewater milky/cloudy white
Fizzy drinks, fire extinguisher, dry ice
Hydrochloric acid & marble chips

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10
Q 
What is the equation for hydrogen?
What are the chemicals for hydrogen?
What is the test for hydrogen?
What are the uses for hydrogen?
(((Diagram of making it)))
A

Magnesium + hydrochloric acid -> magnesium chloride + hydrogen
Magnesium & hydrochloric acid
Burning splint gives squeaky pop
Making margarine, rocket fuel, clean fuel

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11
Q

What is an Exothermic reaction?

A

Reaction that gives out heat

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12
Q

What is an endothermic reaction?

A

Reaction that takes in heat

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13
Q

What is oxidation?
What is reduction?
What is a redox reaction?

A

Adding oxygen
Taking away oxygen
Reduction & oxidation occurring in same reaction

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Chemistry X (28 decks)

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