Higher level chemistry - Study guides, Class notes & Summaries

Pearson Edexcel Level 1/Level 2 GCSE (9–1) Chemistry PAPER 1 Higher Tier MAY 2024 Combined Question Paper and Mark Scheme

Chapter 1 – The Science of Nutrition Multiple Choice Answer, level, page Level: K = knowledge, A = application/critical thinking What Do We Mean by “Nutrition”? (pp. 5-8) a A 6 1. Which of the following ingredients in a box of toaster pastries would contribute macronutrients to one’s diet? a. Water, high-fructose corn syrup, egg yolk b. Niacin, folic acid, sucralose c. Riboflavin, salt, sodium benzoate d. Thiamin mononitrate, soybean oil, sugar c K 5 2. The term “n...

AQA A-Level Chemistry Exam (2024) || All Questions & Answers (Graded A+) AQA A-Level Chemistry Exam (2024) || All Questions & Answers (Graded A+) Topic 1 - ANSWER - Atomic Structure Topic 2 - ANSWER - Amount of Substance State what is meant by the term molecular formula. - ANSWER - the actual no. atoms of each element in a compound Topic 3 - ANSWER - Bonding Explain why CF4 has a bond angle of 109.5°. - ANSWER - -there are 4 bonding pairs and no lone pairs -repel equally and th...

Summary of Pearson Edexcel Level 3 Advanced GCE in Chemistry (9CH0) specification Issue 3 changes Summary of changes made between previous issue and this current issue Page number Adjusted font so that symbols for Aluminum, Chlorine and Thallium are more clear. Removal of ‘Relation in electronegativity difference’ table 97 If you need further information on these changes or what they mean, contact us via our website at: From Pearson’s Expert Panel for World Class Qualifica...

Phlebotomy Exam Questions with 100% Correct Answers Verified | Updated Which of the following POC lab tests is within the CLIA defined scope of practice for a phlebotomist? a. cell differential and urine sediment b. strep test and urine sediment c. urine dip and cell differential d. strep test and urine dip - answerd. strep test and urine dip The phlebotomist is performing a venipuncture on an apprehensive school age child. Which of the following approaches should the phlebotomist use t...

PHLEBOTOMY EXAM QUESTIONS AND ANSWERS GRADED A+ Which of the following POC lab tests is within the CLIA defined scope of practice for a phlebotomist? a. cell differential and urine sediment b. strep test and urine sediment c. urine dip and cell differential d. strep test and urine dip d. strep test and urine dip The phlebotomist is performing a venipuncture on an apprehensive school age child. Which of the following approaches should the phlebotomist use to calm the child? a. direc...

OCR A Level Chemistry A (H432) Chemistry B (H433)Ethanol is oxidised to ethanoic acid using acidified potassium dichromate(IV) solution. The reaction is heated under reflux using the equipment shown in the diagram below. What is the reason for heating under reflux? A. to ensure even heating B. to prevent any substances escaping C. to boil the mixture at a higher temperature D. to allow efficient mixing Your answer [1] 2. A chemist compares the rates of hydrolysis of 1-chloropropane and ...

Pearson Edexcel Level 1/Level 2 GCSE (9–1) Chemistry PAPER 2 Higher Tier 1CH0/2H question paper june 2024

Pearson Edexcel Level 1/Level 2 GCSE (9–1) Chemistry PAPER 1 Higher Tier 1CH0/1H question paper june 2024

AC-HPAT Chemistry Questions With Complete Solutions. double-displacement reaction A double displacement reaction, also known as a double replacement reaction or metathesis, is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products Precipitate precipitate is an insoluble solid that emerges from a liquid solution. The emergence of the insoluble solid from sol...