Fertiliser - Study guides, Revision notes & Summaries

AQA GCSE CHEMISTRY 8462/2F Paper 2 Foundation Tier Question Paper + Mark scheme [MERGED] June 2022 *JunF01* IB/M/Jun22/E11 8462/2F For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL Time allowed: 1 hour 45 minutes Materials For this paper you must have: • a ruler • a scientific calculator • the periodic table (enclosed). Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at ...

A-level Biology BIODIVERSITY Questions With Complete Answers TOPIC: BIODIVERSITY TOPIC: BIODIVERSITY What is biodiversity? The variety of living organisms in an area. What are the three levels of biodiversity? 1)Habitat diversity 2)Species diversity 3)Genetic diversity What is habitat diversity? -A habitat is the area inhabited by a species. -Habitat diversity is the number of different habitats in an area. What is an example of habitat diversity? -A costal area could contain many...

This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began, which would have considered the acceptability of alternative answers. Mark schemes should be read in conjunction with the question paper and the Principal Examiner Report for Teachers. C...

AQA A-Level Biology Paper 3 Predicted Paper 2023 with marking scheme Name …………………………………………………………………… Date ………………… 2 hours allowed. You may use a scientific calculator and a ruler with millimetre measurements. Answer all questions in section A. Answer one question from section B. Grade boundaries These are VERY rough guesses! Getting a B on this paper does not guarantee you the same mark in the exam. • ...

GCSE CHEMISTRY F Foundation Tier Paper 2 Time allowed: 1 hour 45 minutes Materials For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL For this paper you must have: • a ruler • a scientific calculator • the periodic table (enclosed). Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. Do...

Industrial uses of ammonia > Ammonia is used industrially in both its pure form and as a feedstock for a wide variety of other chemicals. > Ammonia itself is used: > As a fertiliser > In many alkaline cleaners, i.e. window and floor cleaners > As a refrigerant gas. > Ammonia is used in the manufacture of: > Fertilisers > Nitric acid, used to manufacture dyes, explosives. > Cyanides. The Haber process: formation of nitrogen > Nitrogen gas used in t...

AQA A-Level Biology Paper 3 Predicted Paper 2023 attached with marking scheme Name …………………………………………………………………… Date ………………… 2 hours allowed. You may use a scientific calculator and a ruler with millimetre measurements. Answer all questions in section A. Answer one question from section B. Grade boundaries These are VERY rough guesses! Getting a B on this paper does not guarantee you the same mark in the exam. ...

State the method used to obtain sand from a mixture of sand and water - correct answer filtration State the method used to obtain solid copper sulfate from aqueous copper sulfate - correct answer crystallisation State the method used to obtain red food dye from a mixture of food dyes - correct answer paper chromatography State the method used to obtain water from salt water - correct answer simple distillation Draw a diagram to show equipment used in simple distillation - correct ans...

Test Bank for Engineering Economics Financial Decision Making for Engineers Canadian 6th edition TEST Bank Engineering Economics 6 th Edition Niall M. Fraser Elizabeth M. Jewkes Mehrdad Pirnia Engineering Economics, 6e (Fraser/Pirnia) Chapter 1 Engineering Decision Making 1.1 Multiple Choice Questions 1) Evaluation of an engineering project involves the following constraints A) financial, environmental, social and political constraints. B) technical and financial constraints. C...

AQA A LEVEL BIOLOGY PAPER 2(questions and answers)2023 air spaces between them = rapid diffusion, long and narrow and are packed with chloroplast the thin tissue of the leaf allows light to reach mesophyll - CORRECT ANSWER-Name three advantages of mesophyll in the leaf stroma in the fluid filled matrix - CORRECT ANSWER-where does the LIR occur? 100 stacked discs of thylakoids - CORRECT ANSWER-what is the grana? chlorophyll absorbs light energy, excite electrons, move along carriers etc...