Flashcards
Chemistry 2 Limestone and its uses Core GCSE
Flashcards do conjunto (10)
- 1—C1
2 - 2What is Limestones Main formulaCaCO3
- 3How is cement made?Limestone is mixed with clay and heated strongly in a kiln. The product is then grounded up to make a fine powder.
- 4Name the FOUR substances used to make concreteSand
Water
Small stones OR Crushed rock
Cement - 5What is meant by THERMAL DECOMPOSITION of a compoundType of reaction where a substance is broken down by heat
- 6Name the products formed when calcium carbonate is heated stronglyCalcium Oxide
Carbon Dioxide - 7What is the word equation for the reaction of calcium oxide with waterCalcium oxide + water = Calcium Hydroxide
- 8Why does limewater go cloudy when mixed with carbon dioxideThe lime and the carbon dioxide react to form calcium carbonate, meaning a solid in the particles is formed and this turns the lime water cloudy.
- 9Why does acid rain damage limestoneWhen acidic rainwater falls on limestone or chalk, a chemical reaction happens. New soluble substances are formed in the reaction. These are washed away and the rock is weathered.
- 10When Limestone is heated what happensIt Glows
(LIME light)
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- GCSE Chemistry FlashCards sobre Chemistry 2 Limestone and its uses Core GCSE, criado por Chloe Roberts em 21-04-2014.
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- Chloe Roberts
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