F321 Quiz Atoms, Bonds and Groups, Chemistry A OCR 4.0 / 5 based on 12 ratings ? ChemistryASAll boards Created by: HannahCreated on: 14-05-12 14:43 Salts can be produced by neutralising acids with: Carbonates, Bases and Alkalis 1 of 17 What products are made when acids react with carbonates? Salt, Carbon Dioxide and Water 2 of 17 What is a salt? A chemical compound formed from an acid when a H+ ion from the acid has been replaced by a metal ion or another positive ion 3 of 17 What is a common use for ammonium salts? Artifical fertiliser 4 of 17 What is a permanent dipole? A small charge difference across a bond that results from a difference in the electronegativities of the bonded atoms 5 of 17 What type of molecule has an overall dipole? A polar molecule 6 of 17 Name a weak intermolecular force Van der Waal's force 7 of 17 What happens to hydrogen bonds when ice melts or water boils? They break 8 of 17 What are the products of the thermal decomposition of CaCO3? CaO + CO2 9 of 17 What happens to hydroxides down Group 2? They become more soluble in water, forming more alkaline solutions 10 of 17 When testing for halide ions, if you are unsure about the colour, what can you add to the solution? Aqueous ammonia 11 of 17 What is a precipitation reaction? The formation of a solid from a solution during a chemical reaction 12 of 17 Down a group, what factors are the most important in influencing ionisation energy? Increase distance and shielding 13 of 17 What is the most important factor across a period? Increased nuclear charge 14 of 17 What is a metallic lattice held together by? the attraction between oppositely charged particles 15 of 17 What are the only attractive intermolecular forces acting between non-polar molecules? Van der Waal's forces 16 of 17 What is the correct equation for the second ionisation energy of oxygen? O+(g) --> O2+(g) + e- 17 of 17
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