Topic 10 - acids, bases and salts
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22 Terms
The colour litmus goes in acid
Red
The colour litmus goes in alkali
Blue
The colour litmus goes in neutral
Purple
The colour methyl orange goes in acid
Red
The colour methyl orange goes in alkaline
Yellow
The colour methyl orange goes in neutral
Yellow
The colour phenolphthalein goes in acid
Colourless
The colour phenolphthalein goes in alkaline
Bright pink
The colour phenolphthalein goes in neutral
Colourless
On the pH scale, what is the most acidic number
1
On the pH scale, what is the most alkaline number
14
What is a base?
The opposite of an acid, proton acceptors
What is an acid
The opposite of a base, they are proton donors
What is an alkaline
A subgroup of a base, it dissolves in water
When making salts, what does acid + alkali make
Salt + water
When making salts, what does acid + metal make
Salt + hydrogen
When making salts, what does acid + metal carbonate make
Salt + water + carbon dioxide
When making salts, what does acid + metal oxide make
Salt + water
Are nitrate salts soluble or insoluble
Soluble
Are salts containing alkali metals soluble or insoluble
Soluble
Are chloride, bromide and iodide salts soluble or insoluble
Soluble
Are sulfate salts soluble or insoluble