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Science Exam GR 9 > Chemistry > Flashcards

Chemistry Flashcards

1
Q

*REVEIW HOW TO COUNT ATOMS IN COMPOUNDS AND MOLECULES*

A
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2
Q

*REVIEW HOW TO BULID IONS*

A
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3
Q

*REVIEW HOW TO DRAW BOHR-RUTHERFORD DIAGRAMS*

A

.

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3
Q

*REVIEW HOW TO DRAW MOLECULAR AND IONIC COMPOUNDS*

A
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4
Q

*REVIEW HOW TO DRAW STRUCTURAL DIAGRAMS*

A
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5
Q

*REVIEW HOW TO RENAME COMPOUNDS USING THE “CRISS CROSS RULE”*

A

.

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6
Q

Anion

A

Negative Ion

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7
Q

Atom

A

Smallest particle of matter

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8
Q

Atomic Mass

A

Tells the mass of an element. Equal to the sum of the protons and neutrons

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9
Q

Atomic number

A

Equal to the number of protons and electrons in one atom of that element

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10
Q

Cation

A

Positive Ion

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11
Q

Chemical Change

A

When the original substance is changed into a new one

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12
Q

Chemical Property

A

Characteristic behaviors that occur when two substances react to form a new one

Example: Hydrogen and Oxygen react to from water

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13
Q

Coeffcient

A

The number in-front of the formula

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14
Q

What are the equations to calculate volume, density and mass? (Triangle)

A

Density: Mass/ Volume

Volume: Mass/ Density

Mass: Density x Volume

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14
Q

Compound

A

Pure substances containing two or more types of atoms chemically bonded together

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15
Q

Element

A

A pure substance, found on the periodic table

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16
Q

Group

A

The columns on the periodic table

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17
Q

Heterogeneous Mixture

A

A mixture that you can see two or more phases throughout

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18
Q

Homogeneous Mixture

A

A mixture in which you can only see one phase throughout

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19
Q

How can u tell by what coloumn an element is in how many electrons are on its outer valence?

A

The group number. When it reaches the teens, it becomes the second number

Example: 17 has 7 electrons in the outer valence

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20
Q

If an atom gains 2 electrons to become stable it’s charge is…

A

-2

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21
Q

If an atom looses 6 electrons to become stable, it’s charge is…

A

+6

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22
Q

Ion

A

An atom that has gained or lost electrons to form a charged particle

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22
Q

Ionic Compound

A

A compound made of a metal and a non-metal

23
Q

Matter

A

Anything that takes up space and has a mass

24
Q

Mechanical Mixture

A

A heterogeneous mixture that can be seperated through mechanical means

25
Q

Mixture

A

Made up of two or more types of particles

27
Q

Molecular Element

A

A molecule that is made up of two atoms of the same element

HOBrFINCI

Example: Cl2, Br2

28
Q

Molecular/ Covalent Compound

A

A compound form by two or more non-metals

29
Q

Molecule

A

Two or more atoms joined together by a chemical bond

30
Q

Neutron

A

Uncharged subatomic particle

31
Q

What are the 5 rules of the Particle Theory?

A

1) Different substances are made up of different types of particles
2) Particles are in constant random motion
3) All matter is made up of tiny particles, with small spaces in between them
4) Particles move faster as temperature increases
5) Particles attract eachother

32
Q

Period

A

The rows on the periodic table

33
Q

Physical Change

A

A change in the form or state of a substance without forming a new one

33
Q

Physical Property

A

Chacteristics that help to identify a substance

Example: 5 Senses

34
Q

Polymer

A

A type of plastic

35
Q

Proton

A

Positive subatomic particle

36
Q

Pure Substance

A

Made up of only one type of particle

37
Q

Stable Atom

A

The valence shell of the atom is full

38
Q

Subscript

A

The small number that indicated how many there are of that element

39
Q

Valence

A

The outer most shell of an atom

40
Q

What are 3 physical properties common to all metals?

A

1) Shiny, silver or grey
2) Malleable and ductile
3) Solid at room temperature ( Except Mercury)

42
Q

What are the 2 rules to remember when finding the number of protons, neutrons and electrons?

A

1) The atomic number of the element, protons and electrons are all the same
2) Neutrons are found by subtracting the atomic number of the element from the atomic mass

42
Q

What are the 3 characteristics of chemical properties?

A

1) Combustibility
2) Reaction with acid
3) Corrosion

43
Q

What are the 3 states of matter?

A

Solid, liquid and gas

44
Q

What are the 3 subatomic particles?

A

Protons, Neutrons and Electrons

46
Q

What are the 6 changes of state?

A

1) Pure Substance
2) Mixture
3) Element
4) Compounds
5) Homogeneous Mixture
6) Heterogeneous Mixture

46
Q

*WORKSHEET*

Where are the 11 different groups of elements? What are they called?

47
Q

What are the 7 Characteristics of physical properties?

A

1) State of matter
2) Hardness
3) Malleability
4) Melting and boiling points
5) Crystal form
6) Solubility
7) Viscosity

48
Q

What are these groups ability to react with other elements? -Alkali Metals

  • Halogens
  • Noble Gases
A

Alkali Metals: Forms Compounds

Halogens: React With Alkali Metals

Nobel Gases: Don’t Form Compounds

50
Q

What does a standard notation contain?

A

The Atomic Mass and Atomic Number on Top of and Below The Element Symbol

50
Q

What do all the columns on the periodic table have in common?

A

The same number of electrons on the outer valence

51
Q

What particles make up most of the mass of an atom?

A

Protons and Neutrons (Nucleus)

52
Q

What size are Electrons?

A

Very small

53
Q

Where are electrons found in an atom?

A

On the atoms rings

55
Q

Where are neutrons found in an atom?

A

In the nucleus

57
Q

Where are protons found in an atom?

A

In the nucleus

59
Q

Which particles take up most of the space in the atom?

A

Protons and Neutrons

60
Q

Which subatomic particle is positive? Neutral? Negative?

A

Positive: Protons

Neutral: Neutrons

Negative: Electrons

61
Q

Who first arranged the table of elements? How?

A

Dimitri Mendeleev

By Chemical Properties

62
Q

What are the 5 clues of a chemical change?

A

1) New colour
2) Heat or light is given off
3) Bubbles or Gas form
4) Precipitate (Solid) is formed
5) The change is diffucult to reverse

Science Exam GR 9 (4 decks)

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