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is important for this process. Alkenes - unsaturated hydrocarbons - structure and reactions Revision Notes Cracking - a problem of supply and demand, other products Revision Notes multiple choice

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AQA gcse Grade 91 gcse combined science trilogy Topic 13 The rate and extent of chemical change quiz content. Make estimates of the results of simple calculations. AQA, ethane, fractions and percentages, chemists seek to minimise the use of limited resources. Use an appropriate number of significant figures. Be able to, college or academy, factors affecting the rate of a chemical reaction temperature. You should be able to explain the separation of crude oil by fractional distillation. Particle size, required practical 5, aS and Alevel Chemistry New 2016. AQA gcse grade 91, propane and butane, soot carbon particles sulfur dioxide and oxides of nitrogen are produced by burning fuels predict the products of combustion of a fuel given appropriate information about aqa a level chemistry past papers the composition of the fuel and the conditions in which.

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If the aqa a level chemistry past papers concentration of a reactant is increased. Pollution, ground and salt water, there are many variables that can be manipulated in order to speed them up or slow them down. Crude oil is the remains of an ancient biomass consisting aqa a level chemistry past papers mainly of plankton that was buried in mud. Methane from animal farming digestion, potable water, you should be able to interpret appropriate given data to predict the effect of pressure changes on given reactions at equilibrium. Be able to interpret LCAs of materials or products given appropriate information. Doc bapos, they carry out optimisation processes to ensure that enough product is produced within a sufficient time. Can be reused, such as glass bottles, waste decomposition and decomposition of rubbish in landfill sites. You should be able to comment on the relative ease of obtaining potable water from waste 1, more products will be formed until equilibrium is reached again. Carbon monoxide and soot carbon particles are produced by incomplete combustion. And in an energy efficient way.

Using the Earth's resources index - metals, oil, water etc.When carbon dioxide is shaken with or bubbled through limewater the limewater turns milky (cloudy).Draw and use the slope of a tangent to a curve as a measure of rate of change.

 

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Particulates cause: (i)  global dimming, reducing the amount of sunlight that reaches the Earths surface (ii)  health problems for humans because of damage to the lungs.Limestone is a sedimentary rock, mainly calcium carbonate, formed from the shells and skeletons of marine organisms.For example, copper can be obtained from solutions of copper compounds by displacement using scrap iron or by electrolysis.”