Chemical Character Flashcards

1
Q

The simplest chemicals are called what

A

Elements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

All elements are made up of tiny particles called what

A

Atoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Two metals found in or extracted from the ground

A

Gold & Copper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

In general most metals are solids except

A

Mercury

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Some non metallic elements are gases while some are solids; name one which is a liquid

A

Bromine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

An element is a substance that consists of only ONE type of atom

A

An element is a substance that consists of only ONE type of atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a molecule

A

A particle that consists of two or more atoms chemically bonded together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a compound

A

A substance that consists of two or more elements chemically joined together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the test for hydrogen

A

If you apply a wood splint, it will burn with a squeaky pop

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Hydrogen is what in colour

A

Colourless

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Hydrogen is what in smell

A

Odourless

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

When hydrogen burns what do you hear

A

A squeaky pop

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

When hydrogen burns you hear and see what

A

You hear a squeaky pop and you see condensation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When hydrogen burns, you hear a squeaky pop and on the sides of a dry container you see condensation. We can summarise the reaction by writing

A

hydrogen + oxygen from the air = water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Most non metallic elements are dull

A

Most non metallic elements are dull

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Non metallic elements which are solids are easily broken when you attempt to change the shape

A

Non metallic elements which are solids are easily broken when you attempt to change the shape

17
Q

Non metallic elements are not sonorous

A

Non metallic elements are not sonorous

18
Q

Non metallic elements are poor conductors of heat and electricity

A

Non metallic elements are poor conductors of heat and electricity

19
Q

Metallic elements are hard and dense

A

Metallic elements are hard and dense

20
Q

Metallic elements are good conductors of heat and electricity, they are shiny when freshly cut can be hammered into sheets and can be drawn into wires

A

Metallic elements are good conductors of heat and electricity, they are shiny when freshly cut can be hammered into sheets and can be drawn into wires