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Science > Chemistry 1 > Flashcards

Chemistry 1 Flashcards

0
Q

What are the 5 changes of state?

A 
Sublimation
Solidification(freezing)
Fusion(melting)
Condensation
Evaporation
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1
Q

What is matter?

A

That which has mass and takes up space.

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2
Q

What is the fourth state of matter?

A

Plasma

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3
Q

What is a physical change?

A

A change of state or form

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4
Q

What is an example of a change of form?

A

Cutting paper
Chopping wood
Grinding into powder
Mixing with water(dissolving)

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5
Q

What are the 5 indicators of a chemical change?

A 
Colour change
Gas is produced
Light is produced
Heat is released/absorbed
Precipitate is formed
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6
Q

What is precipitate?

A

A solid forms when mixing two liquids.

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7
Q

How many chemical factors are needed to prove it is a chemical change?

A

Two

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8
Q

What is the definition of a chemical change?

A

A transformation of a substance to make something new with different physical and chemical properties.

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9
Q

What is a qualitative property?

A

A physical property that is not measured. It uses our senses.

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10
Q

What is a quantitative property?

A

A physical property that can be measured. Number and unit

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11
Q

What is a chemical property?

A

Describes how a substance reacts in the presence of heat, light, electricity or other substances.

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12
Q

What is an example of a chemical property?

A 
Reacts
Burns
Flammable
Ignites
Explode
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13
Q

What are 3 examples of a physical property?

A 
State
Colour
Odour
Lustre
Malleable
Density
Viscosity
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14
Q

Iron rusts

P or c?

A

C

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15
Q

An egg is fried

P or c?

A

C

You can’t get the old egg back

16
Q

Iodine sublimes

P or c?

A

P

17
Q

Copper sulphate can kill bacteria, algae and fungi

P or c?

A

C

18
Q

Sodium chloride is highly soluble in water

P or c?

A

P

19
Q

Grass grows p or c?

A

C

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