Decreases going down the group due to having an extra electron shell so electrons are further away.
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Reactivity...
Increases going down the group it becomes easier to lose electrons so reactivity increases.
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Melting points...
Decreases going down the group due to the number of delocalised electrons remaining the same but the ions getting bigger and having a small charge ratio - more spread apart.
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Testing for sulfate ions?
Add Barium chloride and if a sulfate compound is present it will precipitate Barium Sulfate.
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Hydroxide and Sulfate solubilty?
Hydroxide - increase Sulfate - decrease
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Where is Calcium hydroxide used?
In agriculture - slaked lime to neutralise
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What Magnesium hydroxide used for?
In antacid tablets to neutralise them.
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What about Barium sulfate?
Barium meals for x-rays because it is insoluble so coats the tissues.
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Other cards in this set
Card 2
Front
Group 2 IE...
Back
Decreases going down the group due to having an extra electron shell so electrons are further away.
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