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WorksheetsBases and bubbes
Total questions: 15
Worksheet time: 8mins
What is a proton?
An uncharged particle found in the nucleus of the atom
A negatively charged particle found moving about the nucleus of the atom
A positively charged particle found in the nucleus of the atom
A negatively charged particle that is found in the nucleus of the atom
What is an acid?
A substance that turns blue in universal indicator
A substance that donates hydrogen ions
A substance that forms hydroxide ions
A substance that accepts hydrogen ions
What does the 'mass number' mean?
The number of neutrons and electrons in the atom.
The number of protons in the atom
The number of protons and neutrons in the atom
The number of protons and electrons in the atom.
What is a compound?
A substance made of different types of atoms that are joined or bonded together
A substance made of one type of atom
A substance made of different types of atoms that are not joined or bonded together.
A substance made of different metals that are joined or bonded together.
What does the term malleable mean?
Malleable means that a substance will let heat travel through them without melting them.
Malleable means that a substance can be stretched into a wire without breaking
Malleable means that a substance will let electricity travel through them easily.
Malleable means that a substance can be hammered into a flat sheet without breaking.
What is an alkali?
A substance that donates hydrogen ions
A substance that will turn universal indicator red.
A substance that will dissolve in water and has pH greater than 7.
A substance that will neutralise a base.
What does the term ductile mean?
Ductile means that a substance can conduct electricity
Ductile means that a substance can be shined
Ductile means that a substance can be stretched into a wire without breaking
Ductile means that a substance can be hammered into a flat sheet without breaking.
What is an element?
A substance made of more than one type of atom.
A substance made on one type of atom.
A substance made of different metal atoms joined together
A substance made of metal and non-metal atoms
What does the atomic number refer to?
The number of protons and neutrons in an atom.
The number of electrons in an atom.
The number of protons in an atom
The number of neutrons in an atom.
What is a base?
A substance that changes blue litmus red.
A substance that changes red litmus blue.
A substance that has a pH equal to 7
A substance that will neutralise an alkali.
What happens during the process of neutralisation?
An acid and base react together and form hydrogen gas.
An acid and base react together to form water and salt
An acid and base react together to form a mixture with a pH=8
A base and alkali react together ot form salt and water.
A positive test for oxygen gas is:
When the gas is lit with a flame it burns with a popping noise.
When a glowing splint goes out in the gas
When a glowing splint relights in the gas.
When the gas is bubbled into iimewater the limewater turns milky white.
Carbon dioxide gas, CO2, is made of
One carbon atom and two oxygen atoms joined together
A carbon atom and an oxygen atom
A carbon atom and two oxide atoms
A carbon atom and peroxide atom.
Hydrogen gas is ...
an example of an element
made of three hydrogen atoms joined or bonded together
heavier than carbon dioxide gas.
used to put out fires.
What is a salt?
A substance that turns blue litmus red
A substance produced when acids react with bases
A substance that donates hydrogen ions
A substance made of different metals joined together.
