This Bundle contains the Most Questions expected in Exams, Tests, and Assignments of Chemistry A students. Most Questions are also related to OCR, AQA, and Pearson's Examinations format. They thus provide the Best Examination Questions format and provide the Complete desired Answers to guarantee...
[Show more]
1. which element is in the d-block of the periodic table? A- -Selenium B- -Antimony C- -Tantalum D- -Lead - Ans .C 2. There are 392mol of pure gold in a bar measuring 10cm by 109cm by 40cm. What is the denisty of the gold? A- -193 B- -19.3 C- -1.93 D- -0.193 - Ans .B 3. Which species con...
Preview 2 out of 7 pages
Add to cart1. which element is in the d-block of the periodic table? A- -Selenium B- -Antimony C- -Tantalum D- -Lead - Ans .C 2. There are 392mol of pure gold in a bar measuring 10cm by 109cm by 40cm. What is the denisty of the gold? A- -193 B- -19.3 C- -1.93 D- -0.193 - Ans .B 3. Which species con...
Brønsted-Lowry acid - Ans .proton donor Brønsted-Lowry base - Ans .proton acceptor Acid-base equilibria - Ans .is the transfer of protons pH - Ans .-log10[H+] [H+] - Ans .10^-pH strong acid - Ans .HCl --> H+ + Clfully dissociates in water strong base - Ans .A base that dissociates comple...
Preview 1 out of 3 pages
Add to cartBrønsted-Lowry acid - Ans .proton donor Brønsted-Lowry base - Ans .proton acceptor Acid-base equilibria - Ans .is the transfer of protons pH - Ans .-log10[H+] [H+] - Ans .10^-pH strong acid - Ans .HCl --> H+ + Clfully dissociates in water strong base - Ans .A base that dissociates comple...
Ionisation energy trend in Group 2 - Ans .As you go down the group first ionisation energy decreases because: - Although nuclear charge is increasing - The electrons have an extra quantum shell of shielding making them easier to remove - They exist in a higher energy orbital (and/ or a further ...
Preview 4 out of 31 pages
Add to cartIonisation energy trend in Group 2 - Ans .As you go down the group first ionisation energy decreases because: - Although nuclear charge is increasing - The electrons have an extra quantum shell of shielding making them easier to remove - They exist in a higher energy orbital (and/ or a further ...
Core practical 1 - measuring the molar volume of gas METHOD [7] METHOD: 1. known volume of ethanoic acid in boiling tube 2. place 0.05g of calcium carbonate in test tube 3. weigh contents 4. tip contents into ethnic acid and seal with bung 5. measure volume of gas produced, collected in a mea...
Preview 3 out of 18 pages
Add to cartCore practical 1 - measuring the molar volume of gas METHOD [7] METHOD: 1. known volume of ethanoic acid in boiling tube 2. place 0.05g of calcium carbonate in test tube 3. weigh contents 4. tip contents into ethnic acid and seal with bung 5. measure volume of gas produced, collected in a mea...
Organic compound Any molecule that contains carbon Hydrocarbons Compounds that contain only carbon and hydrogen Saturated hydrocarbon A hydrocarbon that has no double bonds Unsaturated hydrocarbon A hydrocarbon that has double bonds Display Formula Shows all of the atoms in the molecule and...
Preview 2 out of 15 pages
Add to cartOrganic compound Any molecule that contains carbon Hydrocarbons Compounds that contain only carbon and hydrogen Saturated hydrocarbon A hydrocarbon that has no double bonds Unsaturated hydrocarbon A hydrocarbon that has double bonds Display Formula Shows all of the atoms in the molecule and...
Mass spectrometry using lasers to ionise atoms into cations, then measure the abundance and mass using their mass-tocharge ratios Mass to charge ratio the mass of an ion divided by its charge (usually +1 in mass spectrometry) units: m/z relative atomic mass the average mass of an atom of an e...
Preview 3 out of 23 pages
Add to cartMass spectrometry using lasers to ionise atoms into cations, then measure the abundance and mass using their mass-tocharge ratios Mass to charge ratio the mass of an ion divided by its charge (usually +1 in mass spectrometry) units: m/z relative atomic mass the average mass of an atom of an e...
▪ Alkene to Haloalkane - Ans .Hydrogen Halide ▪ Alkene to Primary Alcohol - Ans .Hydration reaction with H3PO4/H2O(steam) ▪ Alkene to Alkane - Ans .H2 with Ni catalyst ▪ Alkane to Haloalkane - Ans .Halogen with UV radiation ▪ Haloalkane to Nitrile - Ans .NaCN (or KCN), reflux, ethanol ...
Preview 1 out of 3 pages
Add to cart▪ Alkene to Haloalkane - Ans .Hydrogen Halide ▪ Alkene to Primary Alcohol - Ans .Hydration reaction with H3PO4/H2O(steam) ▪ Alkene to Alkane - Ans .H2 with Ni catalyst ▪ Alkane to Haloalkane - Ans .Halogen with UV radiation ▪ Haloalkane to Nitrile - Ans .NaCN (or KCN), reflux, ethanol ...
1. Which 2 transition metals do not have a fully filled 4s orbital? - Ans .Chromium and copper 2. What advantage does a fully or half filled shell give a transition metal and why? - Ans .Makes more stable 3. What is the definition of a transition element? - Ans .D-block element which form at lea...
Preview 2 out of 5 pages
Add to cart1. Which 2 transition metals do not have a fully filled 4s orbital? - Ans .Chromium and copper 2. What advantage does a fully or half filled shell give a transition metal and why? - Ans .Makes more stable 3. What is the definition of a transition element? - Ans .D-block element which form at lea...
[Cu(H2O)6]2+ - Ans .Pale blue Solution [Fe(H2O)6]2+ - Ans .Pale green solution [Fe(H2O)6]3+ - Ans .Yellow Solution [Mn(H2O)6]2+ - Ans .Pale Pink Solution [Cr(H2O)6]3+ - Ans .Pale Purple Solution Cu(OH)2 - Ans .Pale Blue PPT Fe(OH)2 - Ans .Green PPT which darkens on standing Fe(OH)3 - ...
Preview 1 out of 3 pages
Add to cart[Cu(H2O)6]2+ - Ans .Pale blue Solution [Fe(H2O)6]2+ - Ans .Pale green solution [Fe(H2O)6]3+ - Ans .Yellow Solution [Mn(H2O)6]2+ - Ans .Pale Pink Solution [Cr(H2O)6]3+ - Ans .Pale Purple Solution Cu(OH)2 - Ans .Pale Blue PPT Fe(OH)2 - Ans .Green PPT which darkens on standing Fe(OH)3 - ...
1. Acid - Ans .A species that is a proton donor. 2. Activation energy - Ans .The minimum amount of kinetic energy that particles need to have in order to react when they collide 3. Addition polymer - Ans .A very long molecular chain formed by repeated addition reactions of many unsaturated alk...
Preview 3 out of 16 pages
Add to cart1. Acid - Ans .A species that is a proton donor. 2. Activation energy - Ans .The minimum amount of kinetic energy that particles need to have in order to react when they collide 3. Addition polymer - Ans .A very long molecular chain formed by repeated addition reactions of many unsaturated alk...
What are biodegradable plastics? - Ans .-Broken down by enzymes What are photodegradable plastics? - Ans .-Broken down by U.V. Light What is the general formula of alkanes? - Ans .CnH2n+2 Are alkanes saturated or unsaturated and why? - Ans .-Saturated -Each carbon atom forms four strong covalent...
Preview 3 out of 19 pages
Add to cartWhat are biodegradable plastics? - Ans .-Broken down by enzymes What are photodegradable plastics? - Ans .-Broken down by U.V. Light What is the general formula of alkanes? - Ans .CnH2n+2 Are alkanes saturated or unsaturated and why? - Ans .-Saturated -Each carbon atom forms four strong covalent...
1. What is an alkene and its general formula? - Ans .It is an unsaturated hydrocarbon with a least one C=C bond. General formula is CnH2n 2. What is a sigma bond? σ - Ans .single covalent bond formed when two s orbitals overlap. High electron density 3. What is a pi bond? - Ans .sideways over...
Preview 2 out of 14 pages
Add to cart1. What is an alkene and its general formula? - Ans .It is an unsaturated hydrocarbon with a least one C=C bond. General formula is CnH2n 2. What is a sigma bond? σ - Ans .single covalent bond formed when two s orbitals overlap. High electron density 3. What is a pi bond? - Ans .sideways over...
▪ ISOTOPES - Ans .ATOMS OF THE SAME ELEMENT WITH DIFFERENT NUMBERS OF NEUTRONS ▪ ATOMIC (PROTON) NUMBER - Ans .NUMBER OF PROTONS IN THE NUCLEUS ▪ MASS (NUCLEON) NUMBER - Ans .NUMBER OF PARTICLES (PROTONS & NEUTRONS) IN THE NUCLEUS ▪ ION - Ans .A POSITIVELY OR NEGATIVELY CHARGED ATOM OR ...
Preview 2 out of 6 pages
Add to cart▪ ISOTOPES - Ans .ATOMS OF THE SAME ELEMENT WITH DIFFERENT NUMBERS OF NEUTRONS ▪ ATOMIC (PROTON) NUMBER - Ans .NUMBER OF PROTONS IN THE NUCLEUS ▪ MASS (NUCLEON) NUMBER - Ans .NUMBER OF PARTICLES (PROTONS & NEUTRONS) IN THE NUCLEUS ▪ ION - Ans .A POSITIVELY OR NEGATIVELY CHARGED ATOM OR ...
1. what is water of crystallisation? - Ans .water molecules that make up part of the crystal structure of a solid 2. define relative isotopic mass - Ans .the ass of an atom of an isotope of an element relative to one twelfth the mass of an atom of C-12 3. why is relative atomic mass written as...
Preview 2 out of 9 pages
Add to cart1. what is water of crystallisation? - Ans .water molecules that make up part of the crystal structure of a solid 2. define relative isotopic mass - Ans .the ass of an atom of an isotope of an element relative to one twelfth the mass of an atom of C-12 3. why is relative atomic mass written as...
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
You can quickly pay through credit card for the summaries. There is no membership needed.
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Stuvia is a marketplace, so you are not buying this document from us, but from seller masigabethwel. Stuvia facilitates payment to the seller.
No, you only buy these notes for £17.45. You're not tied to anything after your purchase.
4.6 stars on Google & Trustpilot (+1000 reviews)
73243 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now