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- Multiple ChoicePlease save your changes before editing any questions.
Which substance is an acid?
Water
Bleach
Orange juice
Washing powder
- Multiple ChoicePlease save your changes before editing any questions.
Which pH levels indicated a strong acid?
1-3
4-6
8-11
12-14
- Multiple ChoicePlease save your changes before editing any questions.
Which pH level indicates a weak alkali?
1-3
4-6
8-11
12-14
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Acids taste...
Sweet
Salty
Sour
Smooth
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Alkalis feel...
Rough
Granulated
Soapy
Smooth
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What does this hazard symbol mean?
toxic
flammable
corrosive
explosive
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What pH range would you get for an acid?
0-6
7
7-14
2-10
- Multiple ChoicePlease save your changes before editing any questions.Pure water has a pH of 7. Pure water _______.is a baseis a neutral substancecould be either an acid or a baseis an acid
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PH scale
pH ruler
pH scale
pH statistical tables
- Multiple ChoicePlease save your changes before editing any questions.Which of the following acids do we have in our stomach?Ethanoic acidHydrochloric acidNitric acidSulphuric acid
- Multiple ChoicePlease save your changes before editing any questions.If an acid is combined with a base of equal strength, the result will most likely bea neutral solution.a stronger acid.impossible to tell without testing the pH.a stronger base
- Multiple ChoicePlease save your changes before editing any questions.When dissolved in water, acids produce:basessaltshydrogen ionshydroxide ions
- Multiple ChoicePlease save your changes before editing any questions.Which type of ion does a base produce when it is dissolved in water?oxideoxygenhydrogenhydroxide
- Multiple ChoicePlease save your changes before editing any questions.Which of the following is true about acids and bases?The lower the pH, the stronger the acidthe higher the pH, the stronger the acidThe lower the pH, the more neutral the acidThe higher the pH, the weaker the base
- Multiple ChoicePlease save your changes before editing any questions.What is another name for a base?AcidAlkalinepH
- Multiple ChoicePlease save your changes before editing any questions.How are metal oxides formed?When metals react with oxide.When metals react with water.When metals react with air.When metals react with oxygen.
- Multiple ChoicePlease save your changes before editing any questions.Acid + base --> ?salt + hydrogen gas + watersalt + carbon dioxide + watersalt + watersalt only
- Multiple ChoicePlease save your changes before editing any questions.What is the salt formed from the reaction of hydrochloric acid + magnesium metal?Hydrogen magnesiumMagnesium chlorineMagnesium chlorideMagnesium hydrogen
- Multiple ChoicePlease save your changes before editing any questions.Which of the following is a positive test for hydrogen gas?Splint will continue to burn in presence of hydrogen gas.Lighted splint extinguishes with no sound.A white precipitate is formed when the gas is passed through limewater.Lighted splint extinguishes with a 'pop' sound in presence of hydrogen gas.
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What does this label mean?
Flammables
Corrosives
Severe Health Hazards
Environmental Hazards
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Which of the following symbols represents a chemical that is an oxidiser?
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Which of the following symbols represents a substance that eats away other substances?
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Which is the most suitable method for separating the products of the reaction below:
NaCl (aq) + AgNO3 (aq) --> AgCl (s) + NaNO3 (aq)
chromatography
crystallisation
distillation
filtration
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Salts that are made with hydrochloric acid are called ....
chlorides
nitrates
hydrochoric
carbonates
- 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