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TERM 2 > Chemistry SA > Flashcards

Chemistry SA Flashcards

1
Q

Goggles

A

Googles are the most important lab equipment, used to protect eyes from broken glass, chemicals, and flames.

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2
Q

Stirring Rod

A

A stirring rod is used to stir chemicals in the lab.

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3
Q

Beaker

A

A beaker is used to measure liquids (not very accurately), hold chemicals, mix chemicals, and may be heated.

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4
Q

Erlenmeyer Flask

A

An Erlenmeyer flask is used to measure liquids (not very accurately), mix chemicals, and may be heated. It is also used in titration.

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5
Q

Test Tube

A

A test tube is used to hold small amounts of chemicals, mix chemicals, and may be heated.

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6
Q

Graduated Cylinder

A

A graduated cylinder is used to measure volume of liquids very accurately.

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7
Q

How To Read The Volume Of A Liquid In A Graduated Cylinder

A
  1. Always measure volume in a graduated cylinder at the bottom of the meniscus.
  2. Always look straight from the side of the meniscus at the graduated cylinder to measure the volume.
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8
Q

Bunsen Burner

A

A bunsen burner is an important piece of lab equipment used for heating in the lab.

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9
Q

Parts of a Bunsen Burner

A
  1. Barrel
  2. Collar
  3. Air Hole
  4. Gas Valve
  5. Base
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10
Q

Barrel

A

A barrel is the part where the flame comes out.

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11
Q

Collar

A

A collar is the part to open or close the air hole.

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12
Q

Air Hole

A

An air hole is the part that allows air to enter the bunsen burner.

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13
Q

Gas Valve

A

A gas valve is the part to control the height of the flame.

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14
Q

Base

A

A base is the part to support the burner if you need to carry/move it.

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15
Q

Yellow Flame

A
  1. Safety Flame
  2. Relatively cool
  3. Highly Visible
  4. Air holes closed
  5. Dirty Flame
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16
Q

Blue Flame

A
  1. Heating Flame
  2. Relatively hot
  3. Hard to see
  4. Air holes open
  5. Clean Flame
17
Q

How To Light A Bunsen Burner

A
  1. Put on safety glasses
  2. Place Bunsen Burner in Heatproof Mat
  3. Check Rubber Hose for cracks and splits
  4. Twist rubber hose onto the gas outlet
  5. Make sure the Bunsen burner hole on the collar is closed.
  6. Get Matches and light one, hold match over the top
    of the Bunsen Burner while you turn the gas on.
  7. Now the Bunsen Burner should be going.
18
Q

Matter

A

Something that has mass and takes up space.

19
Q

States of Matter

A

A physical form of matter, which includes solid, liquid, and gas.

20
Q

Change of State

A

Change of substance from one physical state to another.

21
Q

Solid

A

Solid is a state of matter that has its own fixed shape, and its particles vibrate in its place and has a fixed shape.

22
Q

Liquid

A

Liquid is a state of matter that doesn’t have its own shape, and its particles are irregular and can slide past each other.

23
Q

Gas

A

Gas is a state of matter that doesn’t have its own shape, and its particles are irregular and move freely in all directions.

24
Q

Particle Theory of Matter

A
  1. All matter is made up of tiny particles.
  2. The particles have spaces between them
  3. The particles of matter are always moving
    (attracted each other).
  4. Adding heat to matter makes the particles move faster.
25
Q

Materials

A

Materials are the different types of matter things are made of, like wood, plastic, cotton, glass, rubber, and metal.

26
Q

Element

A

An element is a substance that cannot be split into anything simpler. There are 92 types of elements found naturally on Earth.

27
Q

Location of Elements in the Periodic Table

A

In the Periodic Table, metals are on the left and non-metals are on the right.

28
Q

Physical Properties of Metal

A

State and appearance, sonority, conduction of heat and electricity, strength, hardness, high density, flexibility, malleability, and ductility.

29
Q

Gold

A

Gold is a shiny, yellow metal. It is malleable and ductile, and stays shiny in air and water.

30
Q

Iron

A

Iron is a shiny, grey metal. Worldwide, we use more iron than any other metal. Iron is used because when mixed with small amounts of other elements, it’s strong and malleable. It’s also cheap compared to other metals.

31
Q

Physical Properties of Non-Metal

A

Low melting and boiling point, not shiny, brittle.

32
Q

Alloy

A

A mixture of metals, that sometimes include a non-metal element.

33
Q

Material Properties

A

Strength, stiffness, flexibility, brittleness, hardness, conducting heat and electricity, and water absorption.

34
Q

Polymers

A

Polymers are substances that have very long particles. Synthetic polymers include Polyethene, Poly(propene), and PVC. Natural polymers are made by plants and animals, like cotton, silk, wool, and wood.

TERM 2 (8 decks)

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