• Reaction Lab
    ultimately learn the difference between composition, decomposition, single displacement and double displacement reactions. Safety Information: Hydrochloric acid at lower concentrations is a skin irritant and if it comes into contact with the skin it should be washed with soap and water. Copper...
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  • Physics Paper 2
    perform three investigations (A, B and C) to study three factors which affect the rate of chemical reactions. They use the | | | |reaction between solid calcium carbonate (CaCO3) and excess hydrochloric acid (HCℓ) solution, represented by the balanced equation below, in...
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  • l;llll
    concentration on the rate of a reaction - Investigating the effect of temperature or concentration on the rate of a reaction The Reaction I am going to use potassium carbonate to react with hydrochloric acid to form potassium chloride, water and the gas carbon dioxide. The equation for this is: Potassium...
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  • Chemistry Igcse
    exactly 0ºC and boils at exactly 100ºC. Rates of Reactions Experiment Setup To measure the effects of changes in surface area, concentration of solutions, temperature and use of catalyst, you can react calcium carbonate marble chips with dilute hydrochloric acid and measure the mass of CO2...
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  • The Effect of Temperature on Rate of Reaction
    hydrochloric acid and time how long it takes for the mixture to go cloudy and the cross to disappear. When we look at our results we see that as we increase the concentration of sodium thiosulphate the rate of reaction increases. Hypothesis My prediction is, as the temperature of the reaction...
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  • Chemistry Labs
    solution to produce an increase in the rate of the reaction. Investigating How Varying the Concentration of Hydrochloric Acid Affects the Decomposition of Marble Chips My aim for this experiment is to discover how varying the concentration of hydrochloric acid (HCl) affects the decomposition of marble...
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  • Khalifah
    atomic mass Mark 1 1 (c)(i) (ii) (d) (e)(i) (ii) (iii) (iv) Num. of mole of copper = 2.56 / 0.04 64 Num. of mole of oxygen = 0.64 / 0.04 16 CuO Magnesium and hydrochloric acid / Zinc and sulphuric acid CuO + H2  Cu + H2O Black powder change to brown Water 2 1 1 2 1 1 TOTAL 10 No. 5(a)(i) (ii...
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  • nvestigating The Rate Of Reaction Between Marble Chips And Hydrochloric Acid
    Investigating The Rate Of Reaction Between Marble Chips And Hydrochloric Acid Planning I will use marble chips and different concentrations of hydrochloric acid and water to see how it affects the rate of reaction. I will use concentrations of 50cm3 using different volumes of water and...
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  • Chemistry Coursework - Sodium Thiosulphate
    Chemistry Coursework Planning Aim: To find the effect of concentration of thiosulphate on the rate of reaction between sodium thiosulphate and hydrochloric acid. Introduction: Word Equation for the reaction: Balanced Symbol Equation for the reaction: Observations during the reaction...
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  • ghxf
    Beryllium and magnesium These are just like the reactions with dilute hydrochloric acid, and you have probably been familiar with the reaction between magnesium and dilute sulphuric acid almost since you started doing chemistry. Bubbles of hydrogen are formed, together with colourless solutions...
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  • Chemistry Hsc
    and not precipitated. E.g. reaction of sodium hydroxide with hydrochloric acid: HCl(aq) + NaOH(aq) -> NaCl(aq) + H2O(l) Can also be written as: H+(aq) + NaOH(aq) - > Na+(aq) + H2O(l) Or H+ + Cl- + Na+ + OH- -> H2O(l) + Na+ + Cl- The chloride and sodium ions are spectator ions. The net...
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  • Academics
    is about equally distributed between corpuscles and plasma. E.Q., 20 cc. of blood were mixed with I cc. of a solution containing 60 mg. of potassium oxalate making the concentration in the mixture 2.86 mg. per co.) and centrifuged. A sample of the plasma was precipitated with trichloroacetic acid...
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  • Chemistry Lab Write-Up
    temperature or making the temperature rise, affects the rate at which the reaction proceeds. To demonstrate how changing the temperature at which a reaction takes place affects the rate of the reaction, the reaction between calcium carbonate and 1.0 M hydrochloric acid will be observed at 5 various...
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  • technical analysis lab
    , though if powdered it will react much more rapidly. The reaction will occur faster with higher temperatures (see precautions). Magnesium also reacts exothermically with most acids, such as hydrochloric acid (HCl). As with aluminium, zinc and many other metals, the reaction with hydrochloric acid...
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  • Igcse Chemistry Revision Guide
    means more particles at the surface are exposed to collisions. How fast? On a graph showing the change in concentration of reactants or products, the gradient of the line tells you the reaction rate: steeper = faster, flat = stopped The Rock Cycle The rocks that make up the Earth’s surface are in a...
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  • Hun1201 Study Guide Test Iii
    ) Intracellular, extracellular fluids (predominant electrolytes, how electrolytes move through membrane, what occurs to fluid volume) • Sodium (+) • Affects… • Blood pressure and acid−base balance • Nerve impulse transmission • Muscle contraction and relaxation • Glucose absorption from the...
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  • Chemistry Lab
    Rammy Abssi Chemistry – 11 June 03, 2009 Kinetics Planning Lab Research Question/Aim: How does the molar concentration of hydrochloric acid affect the rate of pressure in a gas releasing reaction? The aim of this experiment is to record how the change in molar concentration of...
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  • Mark Scheme
    magnesium in smaller pieces The same volume of a more concentrated solution of hydrochloric acid A lower temperature A more accurate instrument to measure the time Turn over –8– 19. SPEC/4/CHEMI/HPM/ENG/TZ0/XX What is the order of reaction with respect to NO 2 (g) and F2 (g) given the...
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  • Chemistry Guide
    solids and in solution) including sodium chloride, magnesium sulfate, hexane, liquid paraffin, silicon(IV) oxide, copper sulfate, and sucrose (sugar) Investigate the effect of temperature, concentration and surface area of a solid on the rate of a reaction such as hydrochloric acid and marble chips...
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  • Fuckzzzzzz
    2008 Syllabus 5070 Paper 02 (iii) ANY 3 of: [3] • same number of moles of each acid / same amount of replaceable hydrogen in each acid / same number of hydrogen ions which react in each acid; ALLOW: same concentration of each acid at the same volume • hydrochloric acid is a strong acid and...
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