Zadania z chemii IB SL

The displayed formula below shows part of the chain of an addition polymer. (i) Deduce the structural formula of the monomer used to build this polymer. (ii) Describe one chemical property responsible for this type of polymer being a useful material.

The compound X shown below occurs naturally in cocoa and coffee and is used as a flavouring agent. (i) State the name of the functional group found in compound X. (ii) Deduce the IUPAC name of X. (iii) Draw a structural isomer of X taken from a different…

But-2-ene and other alkenes serve as starting materials for a wide range of compounds. (i) Predict the product formed when but-2-ene reacts with bromine. (ii) Outline why but-2-ene, unlike butane, readily undergoes this type of reaction. (iii) State the…

Propene reacts with bromine to produce 1,2-dibromopropane. $\ce{CH3CH=CH2(g) + Br2(g) -> CH3CHBrCH2Br(g)}$ Calculate the enthalpy, in kJ, of the reaction using section 12 of the data booklet.

What is the charge of the monatomic ion usually formed by the element with the following electron configuration? $\ce{[Ne] 3s^2 3p^4}$ A. 2+ B. 2− C. 4+ D. 6+

Calcium ions and phosphate(V) ions combine to form an ionic compound. What is its formula? A. $\ce{CaPO4}$ B. $\ce{Ca2(PO4)3}$ C. $\ce{Ca3(PO4)2}$ D. $\ce{Ca3(PO3)2}$

Sodium ions are produced at the anode from the sodium atoms stored in the hard carbon. (i) State the half-equation for the reaction occurring at the anode while the battery discharges. (ii) The battery is rechargeable. Annotate the diagram below to show the…

Suggest why banks of sodium-ion batteries are often installed alongside wind turbines.

Which row shows the correct formula of aluminium sulfide and the electron configuration of each species in it? A. $\ce{Al3S2}$; Al species [Ne]; S species [Ar] B. $\ce{Al2S3}$; Al species [Ne] $3s^2\,3p^1$; S species [Ne] $3s^2\,3p^4$ C. $\ce{Al2S3}$; Al…