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Flashcards in Unit 1 Deck (30)
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1

Where are protons found?

• In the nucleus

2

What is the mass of a proton and it’s charge?

• Positive charge and a mass of 1

3

Where are neutrons found?

• In the nucleus

4

What is the mass of a neutron and it’s charge?

• Neutral charge and a mass of 1

5

Where are electrons found?

• Outside of the nucleus in the electron shells

6

What is the mass of an electron and it’s charge?

• Negative charge and a mass of 0

7

Why are atoms neutral?

• Atoms are neutral because the number of positively charged protons equals the number of negatively charged electrons.

8

What is an isotope?

• Isotopes are atoms with the same atomic number (same element) but different mass number.

9

What is ionic bonding?

• Usually between metals and non-metals
• Only found in compounds

10

What is covalent bonding?

• Usually between non-metals
• Found in both elements and compounds

11

What is metallic bonding?

• Between metals
• Found only in elements

12

What’s are ions?

• Ions are charged particles

13

Shape of molecules

• Linear
• Angular
• Trigonal pyramidal
• Tetrahedral

14

When does Ionic Molecules conduct?

•only in solution or molten


15

Ionic Molecules are only attracted between....

•Positive and negative ions

16

What is oxidation?

•Is the term given to the process of losing electrons

17

What is Reduction?

•Is the term given to the process of gaining electrons

18

What is a Redox Reduction?

•Is when both a reduction and an oxidation reaction take place

19

What is OIL RIG?

•Oxidation it loss Reduction is gain

20

Acid contain more _____ ions

H+

21

Alkali contain more _____ ions

OH-

22

What’s the formula for Hydrochloric Acid?

HCl

23

What’s the formula for Sulfuric Acid?

H SO
2 4

24

lWhat’s the formula for Nitric Acid?

HNO
3

25

Alkali equation for Neutralisation?

• Acid + Alkali
=
Salt + Water

26

Metal Oxide equation for Neutralisation?

•Acid + Metal oxide
=
Salt + Water

27

Metal Carbonate equation for Neutralisation?

• Acid + Metal Carbonate
=
Salt + Water +
Carbon Dioxide

28

Metal equation for Neutralisation?

•Acid + Metal
=
Salt+Hydrogen Gas

29

What does a Neutraliser do?

•Moves the pH of an acid or an alkali towards pH7

30

What is a base?

•Is a substance that neutralises an acid.