chemistry year 9 revision cards

lizzie ball
Flashcards by , created over 4 years ago

44 flash cards on topics such as - rocks, bubbles, covalent and ionic bonding, how atoms react and more.

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lizzie ball
Created by lizzie ball over 4 years ago
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Question Answer
what is an atom? the smallest part of an element that still behaves as the element.
what happens to the metal atom during ionic bonding? the metal loses electrons.
complete the equation: metal + acid = salt + hydrogen gas
list the neutralisation reactions? metal carbonate + acid = salt + water + co2 acid + base = salt + water acid + metal oxide = salt + water
how do you draw ionic bonding? *draw all electron shells *metal has a positive charge c21c6e26-5893-473b-8b28-43678ec79a84.png (image/png)
what is covalent bonding? a shared pair of electrons.
how do you draw a covalent bond? *H=H *use dots and crosses *only draw outer electronic shells 5ef0ceba-17ab-4df9-9f67-5de5be52f5f6.jpg (image/jpg)
what is distillation? separating a solution.
what happend in a displacement reaction? the more reactive metal displaces the less reactive metal.
what is the word equation for fermentation? yeast glucose=ethanol + co2
what happens in a decomposition reaction? a compound is broken down into simpler substances.
what is the name for group 7 and 0? halogens and noble gases.
in the periodic table what are the horizontal rows called? periods.
the definition of an element- a substance made of one type of atom.
where are the protons and neutrons found in an atom. in the nucleus.
what does the mass number tell you? how many protons and neutrons are in an atom.
how would you write the electronic configuration of a element in the third period? e.g. 13 electrons = 2,8,3
what is a property of a covalent compound? very strong not soluble no electrical conductivity low melting + boiling point
why do elements become covalent compounds? to be more stable.
what is an allotrope? different forms of the same substance.
what does ionic bonding contain? a metal + a non metal
what is a industrial use of co2? fire extinguishers conducting ph levels creating the fizz in drinks
what is the definition of electrolysis? the break down of a compound by electrical currents.
in electrolysis what moves to the positive electrode. the non metals
in electrolysis which side is the negative electrode. the right
what are liquids that mix together called? miscible
what is the test for hydrogen? the squeaky pop test
what is the definition of a base. a substance that reacts with an acid to produce a salt and water.
what is the test for co2? bubbles through limewater and if it goes cloudy it is present.
what is the solid left called after filtration? residue.
what are you separating during distillation. a solvent from a solution
what happens during distillation? evaporation then condensing
how is equipment set up during distillation? f128b944-34b2-4fae-bdf6-9a6fb6c9e9d6.PNG (image/PNG)
what are you separating when you do fractional distillation? two liquids mixed together.
how would you set up the equipment for fractional distillation. 37125f8d-5423-4d1e-a8cb-78a294238236.png (image/png)
what happens in a exothermic reaction? heat is given out.
what happens in a endothermic reaction? heat rises because the products have more energy then the reactants.
how is a titration experiment set out? a0e7ddc6-5315-493a-a64a-476ee9c8fffc.jpg (image/jpg)
what are the three types of rock? igneous, metamorphic and sedimentary.
how are igneous rocks formed? from volcanoes.
what are the properties of an igneous rock? dont contain fossils crystals random arrangement
what are the properties of a sedimentary rock? have layers have fossils small grains are porus
what are the properties of a metamorphic rock? layers of crystals hard and dense patterns in the rock
how do igneous rock make there way to the sea? by weathering and deposition.