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- Multiple ChoicePlease save your changes before editing any questions.
Complete the following word equation:
Metal + Acid -->
Salt + water
Salt + hydrogen
Salt + Water + Carbon dioxide
- Multiple ChoicePlease save your changes before editing any questions.
Complete the following word equation:
Metalcarbonate + acid -->
Salt + Hydrogen
Salt + Water + Carbon Dioxide
Salt + Water
- Multiple ChoicePlease save your changes before editing any questions.
What colour does the solution turn when copper oxide is added to sulfuric acid?
Blue
Green
Clear
Purple
- Multiple ChoicePlease save your changes before editing any questions.
How do you remove the water to leave solid copper sulfate crystals?
Filter
Evaporate
Distill
- Multiple ChoicePlease save your changes before editing any questions.
What does the word insoluble mean?
Does dissolve
Doesn't dissolve
Is part of a solid
- Multiple ChoicePlease save your changes before editing any questions.
What type of reaction produced an insoluble salt?
Neutralisation reaction
Precipitation reaction
Titration reaction
Insoluble reaction
- Multiple ChoicePlease save your changes before editing any questions.
What is the test for Hydrogen gas?
Squeaky pop
Lime water turning cloudy
Add pH paper
- Multiple ChoicePlease save your changes before editing any questions.
What is the test for Carbon Dioxide?
Add Litmus paper
Lime water turning milky
Squeaky pop
- Multiple ChoicePlease save your changes before editing any questions.
Which food is the most acidic?bananaslemon juiceorange juice - Multiple ChoicePlease save your changes before editing any questions.Salts that are made with hydrochloric acid are called ______________.chloridessulfatesnitratescarbonates
- Multiple ChoicePlease save your changes before editing any questions.Salts that are made with sulfuric acid are called ______________.chloridessulfatesnitratescarbonates
- Multiple ChoicePlease save your changes before editing any questions.Salts that are made with nitric acid are called ______________.chloridessulfatesnitratescarbonates
- Multiple ChoicePlease save your changes before editing any questions.What salt is produced if you react sodium hydroxide with hydrochloric acid?sodium hydroxidesodium sulfatesodium nitratesodium chloride
- Multiple ChoicePlease save your changes before editing any questions.A salt is formed when nitric acid combines with sodium hydroxide. What is the name of the salt?Sodium chlorideSodium nitrateHydrogen NitrateNirate
- Multiple ChoicePlease save your changes before editing any questions.Identify the 'evaporating basin' from the diagrams.ABCD
- Multiple ChoicePlease save your changes before editing any questions.
Which salt would be formed by reacting cobalt carbonate and hydrochloric acid?
Cobalt sulfate
Cobalt chloride
Cobalt hydroxide
Cobalt sulfide
- Multiple ChoicePlease save your changes before editing any questions.
When a soluble salt is formed from an acid and an insoluble base, how do you know when an excess of a base has been added?
When bubbles of gas appear
When the reactant all dissolves
When some of the reactant is left unreacted/undissolved
When a colour change happens
- Multiple ChoicePlease save your changes before editing any questions.
Why do you add excess of the insoluble reactant when making a soluble salt?
To make sure all the acid is used up
To separate the solid from the solution
To make sure a reaction occurs
To have the reaction happen faster
- Multiple ChoicePlease save your changes before editing any questions.
How do you separate an excess insoluble reactant from a solution?
Filtration
Precipitation
Crystalisation
Evaporation
- Multiple ChoicePlease save your changes before editing any questions.
Which two chemicals could you react to make only potassium chloride and water?
Potassium and hydrochloric acid
Potassium hydroxide and hydrochloric acid
Potassium oxide and sulfuric acid
Potassium and sulfuric acid
- Multiple ChoicePlease save your changes before editing any questions.
When producing a soluble salt in a reaction between an acid and an alkali, how can you prepare dry solid crystals from the solution?
Filtration
Neutralisation
Condensation
Evaporation/crystallisation
- Multiple ChoicePlease save your changes before editing any questions.What does pH measure?how acidic a substance ishow basic a substance ishow acidic or basic substances arehow many hydronium ions and acid produces
- Multiple ChoicePlease save your changes before editing any questions.A base has a _________________.sour tastepositive ionslippery feelpH of 5
- Multiple ChoicePlease save your changes before editing any questions.____________ can be corrosive.acidsbasesacids and basesneutral substances
- Multiple ChoicePlease save your changes before editing any questions.Ca(OH)2 is caustic lime and is a(n) _________.acid or basebufferacidbase
- Multiple ChoicePlease save your changes before editing any questions.Ionic bonds form between metals and ____.metalloidsmetalsnonmetals
- Multiple ChoicePlease save your changes before editing any questions.In sodium chloride, sodium gives an electron to chlorine.TrueFalse
- Multiple ChoicePlease save your changes before editing any questions.If you combine an acid and a base, this occurs.acidificationbasificationneutralizationnegativation
- Multiple ChoicePlease save your changes before editing any questions.Which is the stronger acid?pH 1pH 4pH 8pH 13
- Multiple ChoicePlease save your changes before editing any questions.Which of these salts decreases in solubility as the temperature increases.Ce2(SO4)3KClO3K2Cr2O7KNO3
- Multiple ChoicePlease save your changes before editing any questions.What salt is produced if you react sodium hydroxide with hydrochloric acid?sodium hydroxidesodium sulfatesodium nitratesodium chloride
- Multiple ChoicePlease save your changes before editing any questions.A salt is formed when nitric acid combines with sodium hydroxide. What is the name of the salt?Sodium chlorideSodium nitrateHydrogen NitrateNirate
- Multiple ChoicePlease save your changes before editing any questions.Why must chemical equations be balanced?So that the equation doesn't explodeThe reaction won't happen until it is balancedMatter cannot be created or destroyedNone of these
- Multiple ChoicePlease save your changes before editing any questions.Name the salt produced when reacting potassium hydroxide and phosphoric acid?Potassium chloridepotassium nitratepotassium sulfatepotassium phosphate
- Multiple ChoicePlease save your changes before editing any questions.Which of the following is a salt: ammonia or sodium chloride?ammoniasodium chloride
- Multiple ChoicePlease save your changes before editing any questions.
What is the symbol for Copper?
C
co
Cu
CU