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Chemistry Exam GR 11 > Review > Flashcards

Review Flashcards

1
Q

Qualitative Observation

A

Observations based on information you get through your 5 senses.

Example: The liquid was light blue in colour

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2
Q

Quantitative Observation

A

Observations based on measurment or counting.

Example: At the end of the experiment there was 3g of precipitate.

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3
Q

Physical Change

A

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

Example: Ice melting to water (Solid to liquid).

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4
Q

What are the 5 Signs of 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

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5
Q

Ion

A

Charged atom that gains or looses electrons.

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6
Q

Polyatomic

A

More than one atom together.

Example: OH, SO4

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7
Q

Molecular

A

A compound made of two non-metals.

Example: CCl4

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8
Q

Ionic Compound

A

Compound made of a metal and a non-metal.

Example: NaCl

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9
Q

Homogeneous Mixture

A

A mixture in which you can only see one phase throughout.

Example: Milk

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10
Q

Heterogeneous Mixture

A

A mixture that you can see two or more phases throughout.

Example: Pizza with toppings

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11
Q

Compound

A

More than one element bonded together.

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12
Q

Atom

A

The smallest portion of an element.

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13
Q

Molecule

A

More than one atom bonded together.

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14
Q

Solution

A

A liquid mixture where the separate parts cannot be seen.

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15
Q

Mechanical Mixture

A

A mixture where each individual part can be visibly seen.

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16
Q

Where are metals and non-metals located on the periodic table?

A

Metals: The left of the staircase

Non-metals: The right of the staircase

17
Q

Matter

A

Anything that has a mass and takes up space.

18
Q

WHMIS

A

Workplace Hazardous Materials Information System

19
Q

Malleable

A

How easily a material is bent.

20
Q

Ductile

A

How easily a material is drawn into wires.

21
Q

Soluble

A

A substance that dissolves in water.

22
Q

Viscosity

A

How easily a substance flows.

23
Q

Cation

A

Looses electrons (+).

24
Q

Anion

A

Gains electrons (-).

25
Q

Do metals usually react to form cations?

A

Yes. they usually loose electrons.

26
Q

What colours does litmus paper turn when acidic and basic?

A

Acidic: Red

Basic: Blue

27
Q

When a base dissolves in water what is produced?

A

Hydroxide Ions (OH).

28
Q

What are the names, charges, locations, and sizes of the 3 subatomic particles?

A

1) Proton. (+), Nucleus, Small
2) Neutron, (Neutral), Nucleus, Small
3) Electron, (-), Very, Orbits, Small

29
Q

When drawing a Bohr- Rutherford diagram of an element, what can the period and column that element is in tell us about what the diagram will look like?

A

Period= # of shells

Column= # of electrons in valence

30
Q

What are the 4 steps to writing a chemical formula for an ionic compound?

A

Example: Oxygen and Barium

Step 1) Write both element symbols with their charge

O2- and Ba2+

Step 2) Switch the charges and write them at the bottom of the element symbol without their signs

Ba2 and O2

Step 3) Reduce if possible 2/2 and 2/2 =BaO

Step 4) Write the new compound name using an “ide” ending

Barium Oxide

31
Q

What are the 2 steps to naming ionic compounds?

A

Example: BaO

Step 1) Metal is always written first along with the non-metal to follow

Barium Oxygen

Step 2) Change the ending of the non-metal to “ide”

Barium Oxide

32
Q

What are the 4 types of chemical equations and a basic formula example of each?

A

1) Synthesis
ex: A + B = AB
2) Decomposition

ex: AB = A + B

3) Single Displacement

ex: AB + C = AC + B

4) Double Displacement

ex: AB + CD = AD + BC

5) Combustion ex: Any reaction involving Carbon, Oxygen, and Hydrogen (Burns)

ex: C3H8 + 5O2 = 3CO2+ 4 H2O

33
Q

Atomic Number

A

A number that determines the identity of an element and is equal to the number of protons in the nucleus

34
Q

Which subatomic particles are found in the nucleus?

A

Protons and Neutrons

35
Q

How to do you calculate the number of neutrons in an atom?

A

Atomic Mass- Atomic Number

36
Q

What is the most reactive metal and non-metal?

A

Metal: Cesium

Non-Metal: Fluorine

37
Q

Ionic Compound vs Molecular Compound

A

Ionic Compound: A compound made up of a metal and a non metal

Molecular Compound: A compound made up of a metal and a non-meal

38
Q

Polyatomic vs Diatomic

A

Polyatomic: 2 or more non-metals creating a compound with a charge (Back of periodic table)

Diatomic: the 7 elements that make up HOBrFINCl

Chemistry Exam GR 11 (6 decks)

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