General Chemistry terms
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Is an electron:a) negatively chargedb) neutrally chargedc) positively charged | a) Electrons are negatively charged
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| Is a neutrona) negatively chargedb) neutrally chargedc) positively charged | b) Neutrons are neutrally charged
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| Is a protona) positively chargedb) neutrally chargedc) positively charged | c) Protons are positively charged
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| Do metals: a) conduct electricityb) not conduct electricity | a) Metals conduct electricity
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| Are metals maliable? | Yes, metals are maliable
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| Are metals ductile? | Yes, metals are ductile
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| Are metals brittle? | No, metals are not brittle.
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| Do metals conduct heat? | Yes, metals conduct heat
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| Are metals located:a) on the left side of the periodic tableb) in a column down the right side of the periodic tablec) across a few groups on the right hand side of the periodic table | a) Metals are located on the left side of the periodic table
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| Where are the Noble gasses on the periodic table?a) on the left side of the periodic tableb) in a column down the right side of the periodic tablec) across a few groups on the right hand side of the periodic table | b) the noble gasses are the furthest right group (or column) on the periodic table
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| The non-metals are:a) on the left side of the periodic tableb) in a column down the right side of the periodic tablec) across a few groups on the right hand side of the periodic table | c) the non-metals are across a few groups on the right hand side of the periodic table
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| True or False: Elements contain only one type of atom? | True. Elements are made of only one type of atom
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| True or False: Compounds contain only one type of atom. | False. Compounds are made of more than one type of atom, in a fixed ratio. EG H20 is a compound which contains twice as much hydrogen as oxygen
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| True or False: The production of a gas is a sign of a chemical reaction. | True. The production of a gas does show a chemical reaction has occured
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| Name 2 signs of a chemical reaction | The signs of a chemical reaction are:* change in mass* change in temperature* production of a gas* formation of a precipitate* permanent change in colour* production of light
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| What is a precipitate? | A precipitate is a solid formed when 2 liquids are mixed. It is a sign that a chemical reaction has occurred.
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| What is an element's atomic number? | An atom's atomic number is the number of protons in an atom's nucleus.
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| What is an element's mass number? | The mass number is the number of protons + neutrons in an atom's nucleus.
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| In a neutral atom (one with no charge), how many electrons are there compared with the number of protons? | In a neutral atom, the number of electrons is EQUAL to the number of protons.
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| A chemical that increases the rate of a reaction without being consumed by the reaction is called? | A catalyst
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| True or False: Increasing temperature decreases the speed of a chemical reaction | False. Higher temperature increases reaction speed
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| True or False: Decreasing the size of particles decreases the speed of a chemical reaction. | False. Smaller particles react faster.
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| Does stirring increase the speed of a chemical reaction? | Yes, stirring increases the rate of a chemical reaction.
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| What is concentration? | It is a measure of how many particles are present in a given amount of liquid.
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| What effect does increasing the concentration of reactants have on reaction rate? | Increasing concentration increases the rate of a reaction.
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| What is the pH of an acid? | Between 0 and 7
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| What is the pH of a neutral solution like water? | 7
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| What is the pH of a base? | Between 7 and 14
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| Are acids sour? | Acids are sour.
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| What should you wear when using acids and bases? | Safety glasses, lab coats, gloves
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| What happens when you add an acid to a base? | They neutralise each other, giving a salt and water.
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| What does acid do to plants? | Acids kill plants!
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| Are soaps acids or bases? | Soaps are bases.
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| Is vinegar acidic or basic? | Vinegar is acidic.
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| Is Draino acidic or basic? | Draino is basic.
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| Are soft drinks acidic or basic? | Soft drinks are acidic.
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