C1.2.3 - Chemical Formulae Flashcards Preview

SHHS - Science - C1.2 - Elements, atoms and compounds - Year 7 > C1.2.3 - Chemical Formulae > Flashcards

Flashcards in C1.2.3 - Chemical Formulae Deck (10)
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1
Q

Name the following compound:

CO2

A

Carbon dioxide

2
Q

What does a chemical formula tell us?

A

the relative number of atoms of each element in a compound.

3
Q

Name the following compound:

CO

A

Carbon monoxide

4
Q

Identify the ratio of elements in the following compound:

Al2O3

A

Aluminium atoms 2: Oxygen atoms 3

5
Q

What does the subscript tell us in a chemical formula? e.g. CO_2_

A

How many atoms of the element are present in a compound.

e.g. CO_2 _contains 2 oxygen atoms

6
Q

Identify the ratio of elements in the following compound:

H2O

A

2 Hydrogen atoms: 1 Oxygen atom

7
Q

Identify the ratio of elements in the following compound:

CO2

A

1 Carbon atom : 2 Oxygen atoms

8
Q

Name the following compound:

Al2O3

A

Aluminium oxide

Al2O3

9
Q

Name the following compound:

H2O

A

Water

10
Q

All of the chemical symbols are organised into a table called…

A

the periodic table