Safia investigates the reaction between magnesium ribbon and dilute sulfuric acid. In each experiment Safia uses 25 cm3 of sulfuric acid. She records the temperature of the acid and then adds some magnesium ribbon. magnesium ribbon 25 cm3 of sulfuric acid thermometer When the magnesium has finished reacting she records the temperature of the acid again. Safia does this experiment six times. Each time she uses a different length of magnesium ribbon. 15 Look at Safia’s results. 1 cm of magnesium, started = 20°C goes to 22°C 2 cm of magnesium, started = 21°C goes to 25°C 3 cm of magnesium, started = 21°C goes to 27°C 4 cm of magnesium, started = 21°C goes to 26°C 5 cm of magnesium, started = 21°C goes to 31°C 6 cm of magnesium, started = 22°C goes to 34°C Safia then calculates the temperature change for each reaction. (a) Put her results, including the temperature changes, into a table. [3] (b) One set of readings is an anomalous result. Which set? [1] (c) The reaction between magnesium and sulfuric acid releases energy. What is the name given to a reaction that releases energy?
Answers
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2 SO
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2 SO 4
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2 SO 4
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2 SO 4 →MgSO
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2 SO 4 →MgSO 4
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2 SO 4 →MgSO 4
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2 SO 4 →MgSO 4 (aq)+H
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2 SO 4 →MgSO 4 (aq)+H 2
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2 SO 4 →MgSO 4 (aq)+H 2
Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.Mg(s)+H 2 SO 4 →MgSO 4 (aq)+H 2 (g)
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