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Biblioteka

Year 8 reactions of acids

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Posljednje ažuriranje about 1 year ago
15
Napomena autora:

https://docs.google.com/presentation/d/1Upn1EzdTF3yxVFd0ufeJ5cRYftLITXTE/edit?usp=sharing&ouid=103769073739175472406&rtpof=true&sd=true

https://docs.google.com/document/d/1Lk1BrT9arUKvvzYkdObRSDh47BoQ9yUk/edit?usp=sharing&ouid=103769073739175472406&rtpof=true&sd=true

https://docs.google.com/presentation/d/1Upn1EzdTF3yxVFd0ufeJ5cRYftLITXTE/edit?usp=sharing&ouid=103769073739175472406&rtpof=true&sd=true

https://docs.google.com/document/d/1Lk1BrT9arUKvvzYkdObRSDh47BoQ9yUk/edit?usp=sharing&ouid=103769073739175472406&rtpof=true&sd=true

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Pitanje 1
1.

Acid + metal oxide -> + water

Acid + metal hydroxide -> salt +

Acid + metal carbonate → salt + water +

Drugi mogući odgovor:
salt
carbon dioxide
water
hydrogen
Pitanje 2
2.

Acid + metal oxide -> salt +

Acid + metal hydroxide -> salt +

Acid + metal carbonate -> salt + water +

Drugi mogući odgovor:
salt
water
carbon dioxide
Pitanje 3
3.

+ metal oxide → salt + water

Acid + hydroxide → salt + water

Acid +metal → salt + + carbon dioxide

Drugi mogući odgovor:
carbonate
water
Acid
carbon dioxide
metal
hydrogen
Pitanje 4
4.

Sulfuric acid make

Nitric acid makes

Hydrochloric acid makes

Drugi mogući odgovor:
nitrates
sulfates
chlorides
Pitanje 5
5.

calcium + hydrochloric acid → chloride +

Magnesium + nitric acid → nitrate +

Iron + sulfuric acid →iron +

Copper + acid →

Zinc + hydrochloric acid →zinc + hydrogen

nickel + sulfuric acid →nickel +

Drugi mogući odgovor:
magnesium
iron
chloride
hydrogen
water
sulfate
calcium
No reaction
Pitanje 6
6.

Sodium oxide + hydrochloric acid → chloride +

Magnesium oxide + nitric acid → nitrate +

Iron + sulfuric acid →iron +

Copper + acid →

Zinc + hydrochloric acid →zinc + hydrogen

magnesium + sulfuric acid →magnesium +

Drugi mogući odgovor:
chloride
water
magnesium
sulfate
sodium
hydrogen
No reaction
Pitanje 7
7.

Sodium carbonate + hydrochloric acid → chloride + +

Magnesium carbonate + nitric acid → nitrate + +

Iron carbonate + sulfuric acid →iron + +

Copper + acid →

Zinc carbonate + hydrochloric acid →zinc + water +

calcium carbonate + sulfuric acid →calcium + +

Note when writing equations the reactants should be on the left hand side of the arrow and the products should be on the right hand side of the arrow but this is hard to do on this software.

Drugi mogući odgovor:
chloride
No reaction
carbon dioxide
magnesium
sulfate
hydrogen
water
sodium
Pitanje 8
8.
Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

magnesium + nitric acid

arrow_right_alt

magnesium chloride + hydrogen

magnesium oxide + sulfuric acid

arrow_right_alt

magnesium chloride + water

magnesium + sulfuric acid

arrow_right_alt

magnesium chloride + water + carbon dioxide

magnesium oxide + hydrochloric acid

arrow_right_alt

magnesium nitrate + hydrogen

magnesium carbonate + hydrochloric acid

arrow_right_alt

magnesium nitrate + water + carbon dioxide

magnesium + hydrochloric acid

arrow_right_alt

magnesium nitrate + water

magnesium carbonate + sulfuric acid

arrow_right_alt

magnesium sulfate + hydrogen

magnesium carbonate + nitric acid

arrow_right_alt

magnesium sulfate + water

magnesium oxide + nitric acid

arrow_right_alt

magnesium sulfate +water + carbon dioxide

Pitanje 9
9.
Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

zinc carbonate + hydrochloric acid

arrow_right_alt

zinc chloride + hydrogen

zinc oxide + nitric acid

arrow_right_alt

zinc chloride + water

zinc carbonate + nitric acid

arrow_right_alt

zinc chloride + water + carbon dioxide

zinc oxide + sulfuric acid

arrow_right_alt

zinc nitrate + water

zinc + nitric acid

arrow_right_alt

zinc nitrate + water + carbon dioxide

zinc + hydrochloric acid

arrow_right_alt

zinc nitrate + water

zinc oxide + hydrochloric acid

arrow_right_alt

zinc sulfate + hydrogen

zinc carbonate + sulfuric acid

arrow_right_alt

zinc sulfate + water

zinc + sulfuric acid

arrow_right_alt

zinc sulfate +water + carbon dioxide

Pitanje 10
10.

Sulfuric acid + magnesium -> magnesium +

Hydrochloric acid + cobalt -> cobalt +

Drugi mogući odgovor:
chloride
sulfate
water
hydrogen
Pitanje 11
11.

Nitric acid + copper oxide -> copper +

Sulfuric acid + nickel oxide -> nickel +

Drugi mogući odgovor:
nitrate
carbon dioxide
sulfate
water
hydrogen
Pitanje 12
12.

hydrochloric acid + sodium hydroxide →sodium +

sulphuric acid + barium hydroxide → barium +

Drugi mogući odgovor:
sulfate
carbon dioxide
water
chloride
hydrogen
Pitanje 13
13.

nitric acid + sodium carbonate → + +

hydrochloric acid + copper carbonate → + +

Drugi mogući odgovor:
copper chloride
water
carbon dioxide
sodium nitrate
Pitanje 14
14.

https://i.makeagif.com/media/5-15-2016/ImqFqt.gif

Drugi mogući odgovor:
5. evaporate water
until no more reacts
6. leave to dry
2. Stir to react
4. filter
1. add copper oxide
3. add more copper oxide
Pitanje 15
15.

Method for practical.

https://www.focuselearning.co.uk/s/3m041j5nyrfe

https://docs.google.com/document/d/1Lk1BrT9arUKvvzYkdObRSDh47BoQ9yUk/edit?usp=sharing&ouid=103769073739175472406&rtpof=true&sd=true

https://wordwall.net/play/17411/924/932

https://wordwall.net/play/17411/562/558

  1. Agitate gently then put tube back into the hot water. Repeat step 4 and 5 until residue remains.

  2. Stand the tube in a 150 cm3 beaker, half-filled with just-boiled water from a kettle.

  3. Rest a filter funnel in a 100 cm3 conical flask. Place a folded paper in the funnel.

  4. Leave to warm for 2-3 minutes.

  5. Filter the contents of the boiling tube into the crystallising dish.

  6. Add a small spatula of copper (II) oxide to the acid.

  7. Firstly Measure 20 cm3 (using a measuring cylinder) of 0.5 M sulfuric acid into a boiling tube.