lime stone Flashcards
1
Q
what is limestone?
A
sea shells - layers of sedimentary rock
2
Q
what is limestones chemical name?
A
calcium carbonate
3
Q
what is the equation for limestone?
A
Ca2+ + CO*3 ^2-
- subscript
- above
4
Q
9 uses of line stone?
A
- building materials eg. limestone
- marble statues
- cement
- mortar
- concrete
- neutralising agent
- products for pharmacies
- glass
- making iron
5
Q
equation for cement?
A
Limestone + clay -heat-> cement
6
Q
equation for mortar?
A
cement + sand + water —> mortar
7
Q
neutralising agent example
A
anti-acid tablets neutralise stomach acid (hydrochloride acid)
8
Q
equation for glass?
A
sand + limestone -heat-> glass
9
Q
how does acid rain effect limestone?
A
acid rain corrodes limestone
10
Q
General formulae for metal and acid reaction?
A
“metal” carbonate + acid –> “metal” salt + water + carbon dioxide
11
Q
why is lime stone useful for neutralising without excess alkaline?
A
because limestone is soluble
12
Q
what 2 b’s does carbon dioxide cause?
A
Burping and Bubbling
