GCSE SCIENCE CHEMISTRY HIGH SCHOOL - Revision Questions - Water - Solubility - Tests for Ions

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Water
1	Give two uses of Water.	Answer
2	How is Water made Safe to Drink?	Answer
3	How can you show that Water is Hard?	Answer
4	Which Ions make Water Hard?	Answer
5	What is Temporary Hardness?	Answer
6	What is an Ion Exchange Column?	Answer
7	Give one Advantage of Hard Water.	Answer
8	Give one Disadvantage of Hard Water.	Answer

The Sea
9	Why is the Sea Salty?	Answer
10	How is Sea Salt made?	Answer
11	Give one use of Sea Salt.	Answer
12	Which Element is used to Extract Bromine?	Answer
13	Give the Ionic Equation for the Extraction of Bromine.	Answer

Water - Solubility
14	What is Solubility?	Answer
15	When is a Solution called Saturated?	Answer
16	Will an Increase in Temperature allow More Solid to Dissolve?	Answer
17	Will an Increase in Temperature allow More Gas to Dissolve?	Answer
18	Will an Increase in Pressure allow More Gas to Dissolve?	Answer
19	Give two Compounds which are Soluble in Water.	Answer
20	Give two Compounds which are Insoluble in Water.	Answer
21	Which Gas is used to make Fizzy Drinks?	Answer

Tests for Ions
22	Are Non-Metal Ions Negative or Positive?	Answer
23	How do you do a Flame Test?	Answer
24	What is the Flame Colour for Calcium?	Answer
25	What is the Flame Colour for Potassium?	Answer
26	What is the Test for Aluminium?	Answer
27	Give the Ionic Equation for the Test for Aluminium.	Answer
28	What is the Test for Iron?	Answer
29	Give the Symbol Equation for the Test for Iron(II) Ions.	Answer
30	What is the Test for Zinc Carbonate?	Answer
31	What is the Test for a Sulfate?	Answer
32	What is the Test for a Chloride?	Answer
33	What is the Test for a Nitrate?	Answer

Instrumental Methods
34	Give one Instrumental Method which is used to Identify Elements.	Answer
35	Give one Instrumental Method which is used to Identify Compounds.	Answer
36	What is an Absorption Spectrum?	Answer
37	How does a Spectrum show Concentration?	Answer
38	How is a Computer used to Identify a Compound?	Answer
39	What is an Emission Spectrum?	Answer
40	What is Retention Time?	Answer
41	What Instrument can give you the Relative Molecular Mass?	Answer