Q1. (a) Ruth put a piece of a cimber mets in each of four test tubes hydrochionis acid hydrochloric acid hydrochloric acid Look at the diagrams above. (i) How do these show if a metal reacts with the acid? (ii) On the lines below, put the four metals in the order of how strongly they reser with the acid. most reactive least reactive (b) Choose the name of a metal from the box below to answer each question. copper iron magnesium zinc (i) Which metal from the box is used for electrical wires?

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Q1. (a) Ruth put a piece of a cimber mets in each of four test tubes hydrochionis acid hydrochloric acid hydrochloric acid Look at the diagrams above. (i) How do these show if a metal reacts with the acid? (ii) On the lines below, put the four metals in the order of how strongly they reser with the acid. most reactive least reactive (b) Choose the name of a metal from the box below to answer each question. copper iron magnesium zinc (i) Which metal from the box is used for electrical wires?

Answer 1

### For part (a): (a) (i) The reaction of the metal with the acid would be shown through the hydrogen bubbles forming from the reaction. (a) (ii) Based on the anticipated reaction rate, the order from strongly reactive to less should conventionally be: Ferus (assuming a mistake occurred in the misspellings, with it meant to be Ferrous referring to iron). Otherwise, the more reactive to less footnote states as follows: Magnesium, Zinc, Iron, and Copper. ### For part (b): (b) (i) The metal from the listed box that's typically used in electrical wires is Copper.

Answer 2

## Step 1: The question statement in part (a) is not fully clear and also has few misspellings which add to the confusion. However, we may guess that the question asks about the common reactions of metals with acids. The reaction produces a salt and hydrogen gas. ### Formula: \[\text { Metal }+ \text { Acid } \rightarrow \text { Salt }+ \text { Hydrogen Gas }\] This reaction can be used as a measure of reactivity, because more reactive metals displace hydrogen from its acids more quickly. When looking at comparisons of reaction levels between metals, bubbles formating faster means the reaction is quicker and using this measure we can show if a metal is reacting with the acid. ## Step 2: The question asks us to rank the four metals based on their reacting strongly with acid. Without the necessary diagrams or information present, it is impossible to precisely order the metals' reactivity with acids. However, consultation of the reactivity series tells us that in general: 1) Magnesium is most reactive 2) Zinc 3) Iron 4) Copper is least reactive. This is assuming normal conditions and alongside typical acids; certain metals react differently with specific acids. ## Step 3: The second part of the question asks about specific applications for metals and specifies copper, iron, magnesium, and zinc. The context specifically talks about the metal used in electrical wires. Knowing that copper is highly conductive and ductile makes it ideal for use as electrical wiring. From this general knowledge, we answer copper for this part of the question.

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