Chemistry paper 2 high - Study guides, Class notes & Summaries

AQA A LEVEL CHEMISTRY PAPER 1 UPDATED ACTUAL Questions and CORRECT Answers TOF steps - CORRECT ANSWER- 1) ionisation 2) acceleration 3) ion drift 4) detection 5) analysis Electron impact - CORRECT ANSWER- Sample vaporised and electron gun fires high energy electrons at it which knock off 1 electron from each particle, making them 1+ ions NB- can knock off more than one e or break molecular ion

AQA GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Chemistry Paper 2H Mark scheme June 2023. CH4 + 2 O2 → CO2 + 2 H2O 1 AO2 5.7.1.3 Question Answers Extra information Mark AO / Spec. Ref. 01.2 hydrocarbon molecules in petrol have fewer carbon atoms than those in diesel petrol has a lower boiling point (range) than diesel allow converse throughout allow petrol is more flammable than diesel allow petrol is less viscous than diesel 1 1 AO3 5.7.1.3 Question Answers Extra information M...

GED Test 740 Questions with Verified Answers "WOW! Mom rides a kayak at noon." How are the underlined words alike? - CORRECT ANSWER They are palindromes Who was the author of Common Sense: Thomas Paine or Thomas Jefferson? - CORRECT ANSWER Thomas Paine What is NOT a real shark: hammerhead, shovelhead, or tigerhead? - CORRECT ANSWER tigerhead What is the force that slows down an object or stops its motion? - CORRECT ANSWER friction Which is greater than 90 degrees: an acute angle...

AQA GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Chemistry Paper 2H Mark scheme June 2023. CH4 + 2 O2 → CO2 + 2 H2O 1 AO2 5.7.1.3 Question Answers Extra information Mark AO / Spec. Ref. 01.2 hydrocarbon molecules in petrol have fewer carbon atoms than those in diesel petrol has a lower boiling point (range) than diesel allow converse throughout allow petrol is more flammable than diesel allow petrol is less viscous than diesel 1 1 AO3 5.7.1.3 Question Answers Extra information M...

GCSE EDEXCEL TRIPLE SCIENCE CHEMISTRY PAPER 2 2024 QUESTION PAPER WITH QUESTIONS AND CORRCT ANSWERS GRADED A+ What is in the nucleus? - CORRECT ANSWER-Protons and neutrons What is relative atomic mass? - CORRECT ANSWER-Relative atomic mass is an average mass taking into account the different masses and abundances of all the isotopes that make up the element How do you calculate the relative atomic mass? - CORRECT ANSWER-Sum of (isotope abundance x isotope mass number) / sum of abundan...

Edexcel iGCSE Chemistry, question and answer with rated solution Experiment for Diffusion? 1) HCl placed at one end of the test tube, ammonia solution at the other. 2) Where they meet, a ring of Ammonium Chloride appears. 3) The diagram shows that the ammonia is closer to the ring, showing that ammonia must have travelled faster, showing it's a lighter gas. Experiment for Dilution? 1) Put a coloured substance in a solvent e.g food colouring in water. 2) Over the time, the colour le...

HESI A2 ENTRANCEEXAM FOR CHAMBERLAINCOLLGE OF NURSING 2023 QUESTIONS WITH ANSWERS CHEMISTRY HESI A2 CHEMISTRY V1/V2 FILE 1. If a Hydrogen isin a compound, what would its oxidation number be? +1 2. What isthe oxidation number of any simple ion? +1 or -1 depending on the charge of the ion 3. How many kilograms are in a pound? 0. kg 4. What is the temperature for freezing point of water in Celsius? 0 degrees Celsius (32°F for Fahrenheit) 5. What is the conversion of Celsius to Fah...

1. Proteins necessary for body's mainte- nance, growth, and repair (GS) 2. Carbohydrates and Fats used primarily for energy (GS) 3. 212 Water boils at degrees fahrenheit (GS) 4. 100 Water boils at degrees Cel- sius (GS) 5. 373 Water boils at Ks on the Kelvin scale (GS) 6. Veins carry blood from capillaries toward the heart. (GS) 7. Arteries carry blood away from the heart. (GS) 8. Ventricles lower chamber of the heart (GS) 9. Red Blood Cells component of blood which car- ri...

AQA AS Organic Chemistry exam questions with 100% correct answers Define the term 'empirical formula' - ANSWERS A formula that gives the simplist whole number ration of atoms of each element in a compound Define the term 'molecular formula' - ANSWERS A way of representing molecules that shows the actual number of atoms of each element in a molecule Define the term 'General formula' - ANSWERS An algebraic formula that can describe any member of a family of compounds Define the t...