The document discusses chemical reactions involving metals and their compounds. It explains that metals react with acids to produce salts and hydrogen gas. It also discusses how metals react with oxygen and carbon dioxide to form metal oxides and metal carbonates, which can then further react with acids. The document provides examples of word equations for common metal-acid reactions and identifies the products and reactants in various chemical changes involving metals and their compounds.
Reaction of metals and non metals with water,Introduction to reactivity serie...MeenakshiVachher
This presentation will help you understand reaction of metals and non metals with water ,the reactivity series of metals. For students of class 7th and 8th
This teaching Material is for Grade - 9. We provide teaching material at no cost. Please don't forget to recommend/reference our teaching Material after use.
Topics Included
• Introduction
• Metals
→ Physical properties of metals
→ Chemical Properties of metals
• Non-metals
→ Physical properties of non-metals
→ Chemical Properties of metals
• Difference between metals and non-metals
• Reaction with Acids
• Reaction with Bases
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This lecture helps to understand the corrosion principles and to select protection methods; it explains how to use aluminium optimally even in aggressive environments. Some knowledge in aluminium metallurgy and general electrochemistry is assumed.
Reaction of metals and non metals with water,Introduction to reactivity serie...MeenakshiVachher
This presentation will help you understand reaction of metals and non metals with water ,the reactivity series of metals. For students of class 7th and 8th
This teaching Material is for Grade - 9. We provide teaching material at no cost. Please don't forget to recommend/reference our teaching Material after use.
Topics Included
• Introduction
• Metals
→ Physical properties of metals
→ Chemical Properties of metals
• Non-metals
→ Physical properties of non-metals
→ Chemical Properties of metals
• Difference between metals and non-metals
• Reaction with Acids
• Reaction with Bases
TALAT Lecture 5103: Corrosion Control of Aluminium - Forms of Corrosion and P...CORE-Materials
This lecture helps to understand the corrosion principles and to select protection methods; it explains how to use aluminium optimally even in aggressive environments. Some knowledge in aluminium metallurgy and general electrochemistry is assumed.
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The questions of chapter metals and non metals all in one place to access. This question bank make the students useful to prepare for the 10th board exams.
Chapter 3.metals and non metals priya jhaPriya Jha
An element is the simplest form of matter that cannot be split into simpler substances or built from simpler substances by any ordinary chemical or physical method. There are 118 elements known to us, out of which 92 are naturally occurring, while the rest have been prepared artificially. Elements are further classified into metals, non-metals, and metalloids based on their properties, which are correlated with their placement in the periodic table.Metals
With the exception of hydrogen, all elements that form positive ions by losing electrons during chemical reactions are called metals. Thus metals are electropositive elements with relatively low ionization energies. They are characterized by bright luster, hardness, ability to resonate sound and are excellent conductors of heat and electricity. Metals are solids under normal conditions except for Mercury.Nonmetals
Elements that tend to gain electrons to form anions during chemical reactions are called non-metals. These are electronegative elements with high ionization energies. They are non-lustrous, brittle and poor conductors of heat and electricity (except graphite). Non-metals can be gases, liquids or solids.Metalloids
Metalloids have properties intermediate between the metals and nonmetals. Metalloids are useful in the semiconductor industry. Metalloids are all solid at room temperature. They can form alloys with other metals. Some metalloids, such as silicon and germanium, can act as electrical conductors under the right conditions, thus they are called semiconductors. Silicon for example appears lustrous, but is not malleable nor ductile (it is brittle - a characteristic of some nonmetals). It is a much poorer conductor of heat and electricity than the metals. The physical properties of metalloids tend to be metallic, but their chemical properties tend to be non-metallic. The oxidation number of an element in this group can range from +5 to -2, depending on the group in which it is located.
all the information you need about metals , nonmetals their ores at brief .
dont get scared by no. of slides it will be over within no time.
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3. We use metals for bridges and cars, for jewellery, and even inside our bodies. What’s so special about metals? 9E Properties of metals Complete the table. Answer ‘yes’ or ‘no’. Give three more properties of metals. yes no yes yes no no gas at room temperature does not react with oxygen can be beaten into flat sheets shiny surface poor conductor of electricity good conductor of heat typical of metals? property
4. 9E Which metal? There are lots of metals, all slightly different. How do we choose which metal to use for which job? Match up the properties with the way we use each metal. use 1 titanium for artificial hip joints 2 copper in electrical circuits 3 gold for jewellery 4 lead for weights property of metal A has a high density B shiny and unreactive, so it does not tarnish C very light and strong, and unreactive D cheap and a good conductor of electricity property of metal C very light and strong, and unreactive D cheap and a good conductor of electricity B shiny and unreactive, so it does not tarnish A has a high density
5. Read all about it! 9E Odd ones out There is something odd about these substances. What is it? Mercury: a liquid metal that conducts heat and electricity well. It is very dense and was used during the Spanish Inquisition to kill people. Victims were forced to swallow mercury which is very poisonous. Graphite: a black powder that conducts electricity. It feels quite slippery and is used in pencils. A stick of graphite leaves a smear on a rough surface like paper as it passes over it. But is it a metal?
6. Metals and metal compounds 9E Reactions of metals and metal compounds
7. 9E I’ll name that gas in... Many metals react with acids to produce a gas. But which gas is it? CLUE 1 Think about the formulae for acids: sulphuric acid H 2 SO 4 , hydrochloric acid HCl , nitric acid HNO 3 . CLUE 2 The gas burns with a popping sound. CLUE 3 The gas is not oxygen. And the gas is... Hydrogen!
8. How do metals react with acids ? Complete this equation. 9E Metals and acids Write a word equation for each metal with hydrochloric acid: What evidence would tell you this reaction has occurred? metal + hydrochloric acid ? ? + calcium magnesium zinc iron lead copper silver
9. 9E More metals, more acids Metals react with acids to produce a salt and hydrogen . Which salts would be made here? Write a word equation for the reaction of magnesium with nitric acid. magnesium chloride zinc chloride iron chloride magnesium sulphate zinc sulphate iron sulphate iron zinc magnesium salt produced in sulphuric acid salt produced in hydrochloric acid metal
10. 9E What happens to the atoms? In any chemical reaction the atoms are rearranged. Metals react with acids like this. Hydrogen bubbles appear because hydrogen atoms leave the acid and pair up to form hydrogen molecules. zinc + sulphuric acid Zn + H 2 SO 4 + zinc sulphate + hydrogen ZnSO 4 + H 2 + zinc + hydrochloric acid Zn + 2HCl + zinc chloride + hydrogen ZnCl 2 + H 2 +
11. 9E I’ll name that gas in... Metal carbonates react with acids to produce a gas. But which gas is it? CLUE 1 The formulae for carbonates: sodium carbonate Na 2 CO 3 , copper carbonate CuCO 3 , zinc carbonate ZnCO 3 . CLUE 2 The gas puts out a burning spill. CLUE 3 The gas is not hydrogen. And the gas is... Carbon dioxide!
12. 9E Acids and metal carbonates There’s another way of proving that the gas given off is carbon dioxide. What will happen to the limewater?
13. Metal carbonates react with acids . 9E Acids and metal carbonates This reaction has helped to shape our landscape. It has formed huge caves out of solid rock, with stalactites and stalagmites. Calcium carbonate (limestone) is insoluble . When it reacts with acidic rainwater, a soluble salt is formed. The rock wears away. Write a word equation for the reaction of calcium carbonate with nitric acid. metal carbonate + acid salt + water + carbon dioxide
14. 9E What happens to the atoms? When a metal carbonate reacts with an acid , the atoms are rearranged. Where did the carbon dioxide molecules come from? How was the water formed? magnesium carbonate + sulphuric acid + + MgCO 3 H 2 SO 4 magnesium sulphate + + + MgSO 4 CO 2 H 2 O + + carbon dioxide water + sodium carbonate nitric acid + + Na 2 CO 3 2HNO 3 + sodium nitrate carbon dioxide + + + + + + water 2NaNO 3 CO 2 H 2 O
15. 9E What, no gas? The reaction between a metal oxide and an acid does not produce a gas. What does it produce? CLUE 1 The formula for iron oxide is FeO , and the formula for sulphuric acid is H 2 SO 4 . CLUE 2 The salt formed when they react is iron sulphate , formula FeSO 4 . What else is left over? CLUE 3 There is no clue 3! And the answer is… When sulphuric acid reacts with iron oxide it produces iron sulphate and water .
16. 9E Acids and metal oxides How does copper oxide react with sulphuric acid ? copper oxide + sulphuric acid copper sulphate + water
17. 9E What happens to the atoms? When a metal oxide reacts with an acid , the atoms are rearranged. Write a general word equation for this reaction. How was the water formed? copper sulphate + water CuSO 4 + H 2 O + copper oxide + sulphuric acid CuO + H 2 SO 4 + water H 2 O + + + MgCl 2 magnesium chloride magnesium oxide hydrochloric acid MgO 2HCl + + +
19. What does the word salt mean to you? 9E Salt with everything? Chemists use the word salt to mean... a compound that is made when a metal replaces the hydrogen in an acid. Which acid would you use to make these salts? hydrochloric acid sulphuric acid nitric acid calcium nitrate calcium sodium sulphate sodium potassium chloride potassium salt acid + metal
20. Lots of different reactions make salts. Here are three examples to complete. 9E Yet more salts! metal + acid salt + ? metal oxide + acid salt + ? metal carbonate + acid salt + ? + ?
21. 9E Name that salt Remember that a salt is an acid with its hydrogen replaced by a metal. How many salts can you name? Name as many salts as you can remember (or make up!) in two minutes. Salts are very useful chemicals. We use them to flavour our foods, fertilise our crops, and even as antiseptics.
22. 9E How many did you get? These are just some of the salts you might have named... the chlorides (potassium chloride, sodium chloride…) the nitrates (lead nitrate, zinc nitrate…) the sulphates (magnesium sulphate, calcium sulphate…) Check your score! wow! you’re super salty! 20+ very good 16–20 good 11–15 not bad 5–10 don’t give up the day job! under 5
23. Which formula belongs with which salt? 9E Names and formulae CuCl 2 AlCl 3 KNO 3 NaCl ZnSO 4 KNO 3 NaCl AlCl 3 ZnSO 4 CuCl 2 potassium chloride aluminium chloride zinc sulphate copper chloride sodium chloride
24. 1. Which of these are all metals? a) graphite, copper and lead b) magnesium, calcium and marble c) copper, magnesium and iron. 2. Which gas is given off when a metal carbonate reacts with an acid? a) carbon dioxide b) hydrogen c) none. 9E Quiz
25. 3. Which gas is given off when a metal oxide reacts with an acid? a) carbon dioxide b) hydrogen c) none. 4. Which gas is given off when a metal reacts with an acid? a) carbon dioxide b) hydrogen c) none. 9E Quiz