The newest 14 of 14 written questions. Open one to see it on the real paper.
The metals in the list are extracted from their ores. copper iron magnesium Identify one metal from the list that is not able to be extracted from its ore by heating with carbon. Explain your answer. metal explanation sodium potassium
See it on the paper →A student investigates the reaction, if any, of four metals W, X, Y and Z with dilute hydrochloric acid. The student places pieces of the different metals into separate test‑tubes containing dilute hydrochloric acid. Bubbles of gas are observed as shown in Fig. 7.2. W X Y Z Fig. 7.2 The four metals are copper, iron, ma...
See it on the paper →State which of the three metals in Fig. 11.1 reacts most quickly with dilute sulfuric acid.
See it on the paper →When metals react with dilute sulfuric acid a gas is made. State the name of this gas.
See it on the paper →Deduce the order of reactivity of the metals. most reactive
See it on the paper →Complete and balance the symbol equation for the reaction between sodium and water.
See it on the paper →Potassium reacts with water. Potassium hydroxide solution and hydrogen are made. Complete the balanced equation for the reaction. Include state symbols. 2K(s) + 2H 2 O(l) ( ) + ( )
See it on the paper →Most candidates identified magnesium as the most reactive metal.
— Examiner report, February/March 2024, 0654/32 Q11(a)(ii) (Cambridge)
Few candidates identified hydrogen as the gas produced. Carbon dioxide and sulfur dioxide were frequently suggested.
— Examiner report, February/March 2024, 0654/32 Q11(a)(iii) (Cambridge)
The correct order of reactivity of the three metals was commonly seen.
— Examiner report, February/March 2024, 0654/42 Q2(a)(i) (Cambridge)
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A student adds calcium and copper to separate test-tubes of cold water. Describe the reaction, if any, for each metal. calcium copper
See it on the paper →Use the order of reactivity and the information in Table 8.1 to predict the missing results.
See it on the paper →A student reacts dilute sulfuric acid with four metals. The student's observations are shown in Table 11.2. Table 11.2 metal observation copper does not react iron reacts slowly lithium reacts explosively magnesium reacts rapidly Place the four metals in order of their reactivity from the most reactive to the least rea...
See it on the paper →Explain why there is no reaction between copper and dilute acid. Use ideas about the relative positions of elements in the reactivity series.
See it on the paper →Calcium and copper are added to separate amounts of water. Describe the reaction, if any, for each metal. calcium
See it on the paper →State one metallic element that reacts very quickly with water releasing hydrogen gas.
See it on the paper →The reaction in (a)(i) produces an aqueous solution that has a pH greater than seven. Explain why.
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