Flashcards
Chemistry Revision
Cards in this deck (30)
- 1What are AtomsThe smallest particle of a chemical element that can exist.
- 2What are ElementsA pure substance made of only one kind of atom
- 3What are ElectronsA particle in an atom that has a negative charge
- 4What are CompoundsA thing that is composed of two or more separate elements.
- 5What is an Atomic NumberThe number of protons in an atom
- 6What is an Atomic MassThe number of neutrons in an atom
- 7The charge of an electronIt has a negative charge
- 8The charge of a protonIt has a positive charge
- 9The charge of a nuetronIt has no charge
- 10Draw an element
- 11What is an ionAn atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
- 12What is a cationIt's a positively charged ion and carries a positive charge
- 13What is is anionIt's a negatively charged ion and carries a negative charge
- 14What type of bonding is in metalsIonic Bond
Covalent Bond
Van Der Waals Bond
Metallic Bond - 15Why are metals good conductersMetals are excellent conductors because the atoms in a metal form a matrix through which their outer electrons can move freely
- 16Why are metals good conductorsThe atoms in a metal form a matrix through which their outer electrons can move
- 17What is an alloyit's a substance made by melting two or more elements together, at least one of them metal
- 18One type of bonding /ExampleA polar bond is a covalent bond between two atoms where the electrons forming the bond are unequally distributed
Ethanol - C2H6O - 19Secound type of bonding/ExampleA hydrogen bond is an attraction between two atoms that already participate in other chemical bonds
Water - H2O - 20First reaction type/ExampleCombination
Solid sodium metal reacts with chlorine gas to produce solid sodium chloride.
2Na(s)+Cl2(g)→2NaCl(s) - 21Secound reaction type/ExampleDecomposition
calcium carbonate decomposes into calcium oxide and carbon dioxide.
CaCO3(s)→CaO(s)+CO2(g) - 22Third reaction type/ExampleSingle Replacement
Zinc reacts with hydrochloric acid to produce aqueous zinc chloride and hydrogen
Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) - 23Fourth reaction type/ExampleDouble Replacement
When solutions of sodium sulfide and hydrochloric acid are mixed, the products of the reaction are aqueous sodium chloride and hydrogen sulfide gas.
Na2S(aq)+2HCl(aq)→2NaCl(aq)+H2S(g) - 24Fifth reaction type/ExampleCombustion
Combustion of methane
CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g) - 25Aluminium Carbonate FormulaAl2(CO3)3 or C3Al2O9
- 26Aluminum Oxide FormulaAl2O3
- 27How many atoms are there in this compound for each element Al2(CO3)22 x Al + 3 x C +9 x O = 14 Atoms
- 28Chemical reaction for rusting4Fe + 3O2 → 2Fe2O3
- 29Two ways you can prevent rustKeep It Clean and Dry
Apply A Protective Coating - 30—
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- Flashcards on Chemistry Revision, created by Khaqan Shakoor on 16/03/2020.
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- Khaqan Shakoor
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