Kritika added dilute hydrochloric acid to four metals

This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer See Answer See Answer done loading Question:Q1.This question is about hydrochloric acid. (a) Dilute hydrochloric acid, HCl(aq), reacts with many metals. A student observes the reaction of dilute hydrochloric acid with four metals, P, Q, R and S. She uses the same amount of metal in each case. The table shows her observations. Metal Observations P Q very few bubbles produced very slowly many bubbles Q1.This question is about hydrochloric acid. (a) Dilute hydrochloric acid, HCl(aq), reacts with many metals. A student observes the reaction of dilute hydrochloric acid with four metals, P, Q, R and S. She uses the same amount of metal in each case. The table shows her observations. Metal Observations P Q very few bubbles produced very slowly many bubbles produced very quickly many bubbles produced quickly few bubbles produced slowly R S () Use the information in the table to place the four metals in order of reactivity. Place the most reactive first. (2) 2 most reactive least reactive ロロロ (1) Give the names of the two products formed when magnesium reacts with dilute hydrochloric acid. (2) Product 1 .......... Product 2 Previous question Next question

Other metals are very reactive , meaning they easily take part in chemical reactions. Example - lithium Lithium is an example of a very reactive metal. It is so reactive it has to be kept under oil to prevent it coming in contact with oxygen and moisture in the air. If it did come into contact with the air, it would react very quickly. When added to a bowl of water, lithium fizzes quickly as hydrogen gas is given off. If a piece of less reactive copper was placed in a beaker with water, the copper would simply sink to the bottom and not react. The different reactivities influence how the different metals are used. Unreactive metals can be used as uncombined elements. For example, platinum is used in jewellery because it won’t react with anything, so it stays shiny. Reactive metals are used mainly in compounds and have specialised uses. For example, calcium metal reacts with water to produce bubbles of hydrogen. However, calcium carbonate is found in many rocks used to construct buildings and roads. It is possible to decide an order of reactivity by observing chemical reactions and comparing what is seen. The chemical reactions of reactive metals will often show visible changes, such as bubbles of gas or flames being formed. However, unreactive metals will show no visible changes. There are three main reactions of metals that can be used to compare the reactivity of different metals. These are reactions of metals with: • oxygen • water • acids Copper (Cu) is even less react...

Important Important Important Important Important Important Important Important Important Important Important Important Important You are here Important Important Important Important Important Important Important Important Important Important Important Important Important Important Important Important Important Select the correct observation(s) and give chemical equation(s) of the reaction involved. Answer: • H 2 gas is evolved on the addition of Hydrochloric Acid to metal when the metal displaces the H-atom in HCl to form metal chloride. • This occurs only when the metal is more reactive than Hydrogen (check reactivity series ). • The reaction is known as displacement reaction . K P Please Na S Send Ba B Berries Ca C Carrots Mg M Mangoes Al A All Zn Z Zipped Fe I I Ni N N Sn T The Pb L Large H H Handbag Cu C Charlie Hg M M Ag S S Au G G-ed Pt P Paul From the reactivity series we can say that • All given metals except Copper are more reactive than Hydrogen and thus able to form H 2 gas on reaction with HCl. • Therefore, the correct options from the table are : Zinc (Zn) and Iron (Fe) . • The required chemical Reactions are: Fe + HCl → FeCl₂/ FeCl₃ + H₂ Zn + HCl → ZnCl₂ + H₂