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Flashcards in Compounds Deck (37):
1

Chemical name for H20

Water

2

Chemical name for NH3

Ammonia

3

Chemical name for NaCl

Sodium Chloride

4

Chemical name for MgO

Magnesium Oxide

5

Chemical name for CaBr2

Calcium Bromide

6

The prefixes mono, di- and tri- tell us what?

How many atoms are in the molecule

7

Name the 5 Diatomic elements

Hydrogen
Helium
Chlorine
Nitrogen
Oxygen

8

What does diatomic mean

Consisting of 2 atoms

9

NaCl (Sodium Chloride) is also known as?

Salt

10

Differentiate between atomic numbers and atomic mass

The Atomic number tells us how many protons are inside the nucleus of that atom and the Mass number is the average number of protons + neutron's for that type of atom

11

When a metal reacts with oxygen they form?

Metal Oxide

12

When iron reacts with oxygen you get?

Iron Oxide

13

What is iron oxide

It is a reddish brown powder

14

When metal magnesium reacts with oxygen you get?

Magnesium Oxide

15

Magnesium oxide is a?

white powder

16

Iron Metal + Oxygen + Water will give you?

Rust

17

When iron reacts with water and oxygen you get?

Iron Hydroxide

18

Iron Oxide is also known as?

Rust

19

Name 2 ways to prevent rusting

Painting
Electroplating (coating in a thin layer of chromium or zinc)

20

Non metal + Oxygen --> ?

Non-metal oxide

21

Allotropes is another word for?

Different forms

22

Name the 4 allotropes of carbon

Coal
Graphite
Diamond
Buckminsterfullerene

23

Name the 3 different forms Of Sulfur

Orthorhombic
Moniclinic
Plastic

24

What colour does oxygen burn with

An orange glow

25

When sulfur is burnt in oxygen what colour is the flame burnt with?

Blue flame

26

If carbon dioxide and sulfur dioxide are in the atmosphere, what will form?

Acid Rain

27

Acids have a Ph in the range of ?

1-6

28

A neutral substance has a Ph level of?

7

29

What colour will a neutral substance change in an indicator?

Green

30

Bases have a Ph in the range of?

8-14

31

What is neutralisation reaction

When an acid and base react together

32

Acid + metal oxide --> ?

salt + water

33

Name 2 problems acid rain can cause in the world?

Can slowly corrode buildings
Can cause damage to historical bulidings or landmarks
Causes rivers to become more acidic

34

What can be used to make soil less acidic?

Limestone

35

acid + metal hydroxide --> ?

hydroxide salt + water

36

acid + metal carbonate -->

Salt + carbon dioxide + water

37

Acid + metal + salt -->

Hydrogen Gas