We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byDestinee Bolger
Modified about 1 year ago
Version 2.0 Copyright © AQA and its licensors. All rights reserved. C1.2.1 Calcium Carbonate
Using Exam pro items to support successful outcomes Version 2.0 Copyright © AQA and its licensors. All rights reserved. Learners will be able to test their progress against learning outcomes using questions fro past AQA GCSE examinations
Foundation Tier C1 June 12, 4 1. Version 2.0 Copyright © AQA and its licensors. All rights reserved. a (i) (ii) b
1b continued Version 2.0 Copyright © AQA and its licensors. All rights reserved.
Mark scheme Version 2.0 Copyright © AQA and its licensors. All rights reserved. QAnswerExtra InformationMark 1 (a) (i) Bubble the gas through limewater/calcium hydroxide solution allow (add) limewater. Test must be correct to gain result mark 1 1 (a) (ii)(the solution) goes cloudyAllow milky 1 1 bAdvantage- quarrying limestone provides building materials, employment and new road links Disadvantage- quarrying limestone releases dust, and lorries release carbon dioxide from burning fossil fuel 1111 Total 4
Higher Tier C1 June 12, 5 Version 2.0 Copyright © AQA and its licensors. All rights reserved. 1
Mark scheme- Higher tier Version 2.0 Copyright © AQA and its licensors. All rights reserved. QAnswerExtra InformationMark 1 (a) (i) Water Accept hydrogen oxide Allow H 2 O 1 1 (a) (ii)Carbon dioxideAllow CO 2 Accept any soluble carbonate or carbonic acid 1 1 b (i) CaCO HCl CaCl 2 + CO 2 + H 2 O 1 1 b (ii) Because sulfur reacts with oxygen/air to produce sulfur dioxide or sulfur burns to produce sulfur dioxide And (sulfur dioxide) causes acid rain that reacts with/erodes limestone/calcium carbonate Accept correct equation Ignore wears away c (i) Because carbon dioxide is produced from burning methane Because carbon dioxide is produced from decomposing calcium carbonate/limestone Accept correct equation Do not accept carbon in calcium carbonate reacting with air 1111
Mark scheme- Higher continued Version 2.0 Copyright © AQA and its licensors. All rights reserved. QAnswerExtra InformationMark 1 c (i) Because carbon dioxide is produced from burning methane Because carbon dioxide is produced from decomposing calcium carbonate/limestone Accept correct equation Do not accept carbon in calcium carbonate reacting with air c (ii) Nitrogen This is the main gas/75-80%/of air Allow there is a lot of this gas in air 1111 Total 9
Version 2.0 Copyright © AQA and its licensors. All rights reserved. C (ii) Quantitative Chemistry.
B1.5 Energy and biomass in food chains GCSE items that can be used to define successful outcomes for peer and self assessment activities.
P1.1.3 Energy transfer by heating GCSE items that can be used to define successful outcomes for peer and self assessment activities.
Formation of Calcium Carbonate Investigation 5: Limestone Earth History Grade 6.
7.3 Energy Changes in Reactions A propane grill is the scene of a chemical reaction. The reactants are propane and oxygen, and the products are carbon.
When a substance undergoes a chemical change, it takes part in a chemical reaction. Recognizing Chemical Reactions Chemical Reactions and Equations: Basic.
08/01/2014 Year 12 What you should know already. 08/01/2014 Elements and symbols that you should know: Part 1 – The obvious ones: 1)Hydrogen 2)Helium.
Notes: Ch 8-Section 3 “Classifying Chemical Reactions”
Cycles of Matter December 7 th, Energy Energy is crucial to an ecosystem but organisms need more than energy to survive. 95% of the body is made.
Equilibrium &The Haber Process GCSE REVISION. The Haber Process This reaction makes ammonia out of hydrogen and nitrogen. The nitrogen comes from.
Acids, Bases, and Solutions A hydrogen ion (H + ) is an atom of hydrogen that has lost its electron. An acid is any substance that produces hydrogen ions.
Chapter 7Mr. Kennedy. What is a solution? Solution-well-mixed mixture containing a solvent and at least one solute that has the same properties throughout.
Bond Day 2: #4. Chemical Bond Day 2: #4 Before there were bonds, there had to be elements! Lets review elements & the Periodic Table THIS TABLE: No,
1.3. Cycles and the Earth 1. Water Cycle Water.
Oxygen Cycle. Required for Life All living things use oxygen or depend on organisms that use oxygen in some way.
Cycles of Matter. Cycles of Matter: Why? Because we have a fixed amount of STUFF (matter) on this planet, and no new stuff is being added from the universe.
Changes in Matter _________ Changes – identity of substance does _____ change Examples: _____________ _____________ __________ __________ _________ _________.
The bad news, good news and more bad news about elevated CO 2 levels in the atmosphere. –Bad news: CO 2 contributes to global warming. –Good news: The.
SALT MODULE 2. GasTestResult of test Ammonia Place a damp in the gas Red litmus paper turns blue Carbon dioxide Bubble the gas through Lime water turns.
© Copyright R.J. Rusay Aqueous Reactions Dr. Ron Rusay.
START Thermal Power Stations START Thermal Power Stations Burn Fossil Fuels like coal Releasing vast amounts.
Air Pollution: The Dirty Truth ©2009 abcteach.comabcteach.com.
Reaction Prediction. You should already know... how to balance chemical equations. the five common types of chemical reactions. how to use the activity.
Cycles Water, Carbon, Nitrogen Oxygen and Phosphorus.
13/01/2014 Air Quality W Richards The Weald School (OCR 21 st Century)
Cars and lorries make carbon dioxide which is causing climate change. How do they make the carbon dioxide?
Posters 1.Signs of a chemical reaction 2.Chemical vs. Physical reaction 3.Symbols used in chemical reactions 4.Synthesis 5.Decomposition 6.Single diplacement.
Chemical Reactions And Equations. Chemical Change - objectives 1. List the common indicators of a chemical change and use them to identify when a chemical.
Aqueous Reactions Dr. Ron Rusay. Aqueous Reactions There are several general types: 1) Precipitation: An insoluble salt forms from the addition of solutions.
WRITING AP EQUATIONS AP equation sets are found in the free- response section of the AP test. You are given three sets of reactants and you must write.
© 2016 SlidePlayer.com Inc. All rights reserved.