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1
Q

Q2.What indicator is limited?

A

Q2.Litmus is a limited indicator.

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2
Q

Q3.How is acid Rain formed?

A

Q3.Acid rain is formed when carbon dioxide dissolves into rain?

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3
Q

Q4.What is the negative affects of acid rain?

A

Q4.Acid rain is bad because it causes limestone structures to decay,pollution and deforestation

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4
Q

Q5.what is the limitations of litmus?

A

Q5.It cannot tell us how strong/weak the acid is.

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5
Q

Q6.What is the advantage of danger signs on the side of chemicals?

A

Q6.Because they can be identified by any language and any place.

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6
Q

Q7.Explain 4 ways of neutralisation

A

Q6. 1.indigestion tablets

    2. tooth paste
   3. vinegar for bee stings  
   4. Adding a acid and alkali together
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7
Q

Q8.What would be the colour of a strong alkali?

A

Q8.The colour of a strong alkali would be blue.

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8
Q

Q9.What is the ph of a strong acid?

A

Q9.1-2 ph

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9
Q

Q10.What would be the ph of a strong alkali?

A

Q10.13-14ph

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10
Q

Q11.What are the advantages of universal indicator?

A

Q11.It tells us how strong/weak the acid is?

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11
Q

Q1. Are all acids harmful? Explain why?

A

Q1.No not all acids are harmful because some are in the food and drinks that we eat.

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12
Q

Q12.What acid is in our stomach?

A

Q12.hydrocloric acid

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13
Q

Q13.What acids are in fruits?

A

Q13.citric acid

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14
Q

Q14.What would you do if a strong acid spilt on your hand?

A

Q14.pour water over the acid to dilute/weaken the acid?

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15
Q

Q15.What do you think the danger symbol harmful means?

A

Q15.It can do serious harm to yourself/others.

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16
Q

Q16.What happens if we add an alkali and acid together?

A

Q16.The substance turns green so neutralisation is done.

17
Q

Q18.Are all indigestion tablets successful?

A

Q18.No some don’t work because the don’t neutralise the acid.

18
Q

Q19.If you had tooth ache what would you do?

A

Q19.Rub a little bit of toothpaste on the tooth to neutralise the acid.

19
Q

Q20.What is ethanoic acid in?

A

Q20.vinegar

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