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S2 Chemistry > Module 1 > Flashcards

Module 1 Flashcards

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1
Q

What is the smallest particle of matter?

A

An atom

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2
Q

How many elements are on the periodic table?

A

Around 118

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3
Q

How many types atoms does an element have?

A

An element has only 1 type of atom

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4
Q

Elements can be…

A

Natural or man made

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5
Q

What 2 elements are liquid at room temperature?

A

Mercury (Hg) and Bromine (Br)

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6
Q

What is a period on the periodic table?

A

A period is the elements organised in rows

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7
Q

What is a group on the periodic table?

A

A group is the arrangement of columns on the table

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8
Q

What is group 1 on the periodic table?

A

The Alkali Metals

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9
Q

What are groups 2 and 3 on the periodic table called?

A

Transition Metals

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10
Q

What is group 7 on the periodic table called?

A

The Halogens

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11
Q

What is group 8 on the periodic table called?

A

The Noble Gases

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12
Q

What are all elements given?

A

A symbol Ex/ Hydrogen= H

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13
Q

What side of the periodic table are metals on?

A

Left hand side

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14
Q

What side of the periodic table are non metals on?

A

The right hand side

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15
Q

What are the properties of metals?

A

Metals are shiny and electrical conductors

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16
Q

What are the properties of non metals?

A

Non metals are dull and don’t conduct electricity expert Carbon! (In the form of graphite)

17
Q

When are compounds formed?

A

When elements react together

18
Q

Why do the properties of a compound vary?

A

Compounds have different properties based on the elements they are made from

19
Q

How are the elements in a compound held together?

A

The elements in a compound are chemically bonded together and can’t be separated easily

20
Q

What do most compound that end in -IDE contain

A

The 2 elements indicated in the name

21
Q

What do compounds that end in -ITE and -ATE contain?

A

The elements in the name and the additional element oxygen

22
Q

What process can be used to break a compound into its elements?

A

Electrolysis

23
Q

In a physical change what is formed?

A

No new substances are formed!!!

24
Q

Are physical changes easy or hard to reverse?

A

Easy

25
Q

A change of state it what?

A

A physical change

26
Q

What are the changes of state?

A

Melting, boiling, condensation, solidification, sublimation

27
Q

All chemical reactions involve what?

A

The formation of one (or more) new substances

28
Q

Are chemical changes easy or hard to reverse?

A

Hard

29
Q

How can chemical reactions be identified?

A

Colour change, gas given off and precipitate formed

30
Q

How else can chemical reactions be identified?

A

Chemical reactions can be identified by energy changes

31
Q

What is ans EXOTHERMIC reaction?

A

And exothermic reaction releases heat into the surroundings so the products have less chemical energy than the reactnats

32
Q

What is an ENDOTHERMIC reaction?

A

An endothermic reaction takes in heat energy from the surroundings so the products have more chemical energy than the reactants

33
Q

What is a reactant?

A

A reactant is a substance that reacts with something else to form something new

34
Q

What is a product?

A

A product is the result of two reactants reacting with each other and forming something new

35
Q

What is the state symbol for solids?

A

s

36
Q

What is the state symbol for liquids?

A

l

37
Q

What is the state symbol for gasses?

A

g

38
Q

What is the state symbol for solutions?

A

aq (aqueous)

S2 Chemistry (3 decks)

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