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KS3 metals
KS3 reaction and properties of metals
| Question | Answer |
|---|---|
| What is an oxidation? | When an element GAINS/JOINS with oxygen |
| What is reduction? | When a compound LOSES oxygen |
| IN this equation, which element is reduced, which is oxidised: Iron Oxide + Carbon Carbon Dioxide + Iron | Iron is reduced (Iron Oxide loses Oxygen); Carbon is oxidised |
| Define an element, a compound and a mixture | An element is made of one type of particles (atoms) only; a compound is two (or more) elements JOINED together;a mixture is made of two particles NOT JOINED together, the particles in a mixture can be separated easily |
| Explain what galvanising is | Coating a metal with Zinc, so that the metal does not oxidise |
| Name the three elements found in Copper sulphate | Copper Sulfur and Oxygen (the ATE means lots of oxygen) |
| Balance this equation Mg + HCl -> MgCl2 + H2 | Mg + 2 HCl -> MgCl2 + H2 |
| Say what elements are present in this compound and how many atoms of each: C2H5OH | Carbon (2 atoms)Hydrogen (6 atoms) Oxygen (1 atom) |
| Explain how metals such as iron can be extracted from their ores | Carbon is more reactive than Iron; Carbon takes away the Oxygen from Iron (do not say “the oxide”); Carbon reduces the Iron |
| Write the equation for the reaction that occurs between Sodium and water | Sodium + Water -> Sodium Hydroxide + Hydrogen |
| What is the alkali formed when Potassium reacts with water? | Potassium Hydroxide |
| What gas is formed when a metal reacts with acid? | Hydrogen |
| Write the word equation for the reaction between Iron and Hydrochloric Acid | Iron + Hydrochloric Acid --> Iron Chloride + Hydrogen |
| Write the word equation for the reaction between Magnesium and Nitric Acid | Magnesium + Nitric Acid --> Magnesium Nitrate + Hydrogen |
| Name these elements from their symbols: Na, K, C, Mg | Sodium, Potassium, Carbon, Magnesium |
| A metal X displaces Y from solution but metal X does not react with the nitrate of Z; What is the order of reactivity? | from most reactive to least reactive Z>X>Y |
| Magnesium burns in air with a bright flame. Write the word equation | Magnesium +Oxygen --> Magnesium Oxide |
| Calcium burns in air to make Calcium Oxide. Write the word equation | Calcium + Oxygen --> Calcium Oxide |
| Copper burns in air. Write the word equation | Copper +Oxygen --> Copper Oxide |
| When Iron is placed in Copper Sulfate, the Iron becomes coated with a red substance. What is the name of that substance? | Copper (have you written the word equation? Copper Sulfate + Iron Copper + Iron Sulfate) |
| What would you observe when you place Magnesium in Copper Sulfate? | A red solid forms (copper) and the blue solution becomes colourless (as the copper sulphate reacts): (have you written the word equation? Copper Sulfate + Iron Copper + Iron Sulfate) |
| Write the word equation for the reaction between Silver Nitrate and Zinc | Zinc + Silver Nitrate --> Zinc Nitrate + Silver |
| What type of substance is Copper Sulfate? Element, Compound or mixture? | Compound |
| What type of substance is Hydrogen? Element, Compound or mixture? | Element |
| What type of substance is salty water? Element, Compound or mixture? | Mixture |
| Name a metal that rusts | Iron |
| Why is it wrong to say “Zinc rusts”?What should you say instead | Because ONLY iron rusts; all the other metals OXIDISE |
| What is the chemical name for rust? | Iron Oxide |
| What two chemicals are needed for Iron to rust? | Water and Oxygen |
| Write the name of the compound which is formed when Zinc reacts with sulphur | Zinc Sulfide |
| Write the name of the compound which is formed when Sodium reacts with Chlorine | Sodium Chloride |
| Where are the metals found on the Periodic table? | On the left hand side |
| What acid would you need to make Zinc Sulfate? | Sulfuric Acid |
| Jane wants to make Copper Sulfate. Why should she not add Sulfuric Acid to Copper?What should she use instead of Copper? | Because Copper is not reactive enough (it is less reactive than Hydrogen). She could use Copper Oxide or Copper Carbonate instead. |
| The gas given off in an experiment re-lit a glowing splint. Give the name of this gas. | Hydrogen |
| When Magnesium is burned, a white powder is formed. What is the name of this white powder? | Magnesium Oxide (have you written the word equation? Magnesium +Oxygen Magnesium Oxide) |
| In an experiment, Magnesium is burned in air. Why is the mass increasing? | Because Oxygen has combined with Magnesium |
| What is the name of this compound: CuS? | Copper SulfIDE (when only 2 elements, the non-metals finishes in -IDE) |
| What is the name of this compound: CuSO4? | Copper SulfATE (when 2 elements PLUS oxygen the non-metal finishes in –ATE) |
| Jane places Magnesium in Nitric Acid. Explain why the mass decreases | Hydrogen gas is produced and escapes |
| A metal that can be separated from a mixture using a magnet | IRON |
| It describes how easily a metal reacts | REACTIVITY |
| A type of corrosion that only forms on iron | RUST |
| A table that shows metals arranged in order of their reactivity | REACTIVITY SERIES |
| Copper chloride & magnesium sulphate are examples of this group of compounds | SALTS |
| A soft & reactive alkali metal with the symbol K | POTASSIUM |
| A reaction where a more reactive metal takes the place of a less reactive one | DISPLACEMENT REACTION |
| The chemical symbol for the metal sodium | Na |
| This group of salts has the formula of CO3 | CARBONATES |
| The acid that produces salts called sulphates | SULPHURIC |
| A gas that turns limewater milky | CARBON DIOXIDE |
| A valuable and very unreactive metal | GOLD |
| They appear when a gas is produced in a chemical reaction | BUBBLES |
| A metal that has lost is shine has also lost this? Hint: Sounds like Buster | LUSTRE |
| When a metal loses its shine | TARNISHED |
| The name of the compound produced when a metal reacts with oxygen | OXIDE |
| The salt produced when hydrochloric acid is a reactant | CHLORIDE |
| The name given to the group of reactive metals potassium, sodium and lithium | ALKALI METALS |
| Are Metal hydroxides (OH) acids or alkalis? | ALKALINE |
| All metals conduct these | ELECTRICITY & HEAT |
| A metal used in aeroplanes because of its low density | ALUMINIUM |
| Rusting and oxidation are both examples of this process Hint: Acid rain can cause it | CORROSION |
| The chemical formula of the hydroxide group | OH |
| The formula of the sulphate group | SO4 |
| The chemical formula of hydrochloric acid | HCl |
| A metal used for cables because of its high conductivity and flexibility | COPPER |
| Is copper chloride an element or a compound? | a compound (the clue is in the fact that there are 2 words!) |
| How is Iron extracted from its ore (Iron Oxide)? | by heating Iron Oxide with Carbon in a blast furnace |
| How is Aluminium extracted from its ore (Aluminium Oxide)? | by electrolysis of Aluminium Oxide (ie splitting Aluminium Oxide into Aluminium and Oxygen using a direct current) |
| Why is Iron extracted by heating Iron Oxide with Carbon in a blast furnace when Aluminium extracted from its ore by electrolysis of Aluminium Oxide? | because Iron is less reactive than CARBON so CARBON can steal the Oxygen away from Iron Oxide |
| Complete the word equation: Aluminium + Iron Oxide | Iron + Aluminium Oxide |
| Write the word equation for the reaction between Magnesium and Copper Sulfate | Magnesium + Copper Sulfate Magnesium Sulfate + Copper |
| What would happen if copper powder was heated with iron oxide? | Nothing! Because Iron is more reactive than copper so copper will not be able to steal the oxygen away! |
| Zinc powder burns in air. Write the word equation for the reaction. | Zinc+OxygenZinc Oxide |
| The result of reacting HOT acid with potassium or any other alkali metal | AN EXPLOSION |
| The test for the gas hydrogen | POPS WITH A LIT SPLINT |
| The gas made when a metal reacts with an acid | Hydrogen |
| The gas made when an alkali metal reacts with water | Hydrogen |
| The name of the salt made when Calcium reacts with Hydrochloric Acid | Calcium Chloride (look at the first words!) |
| The name of the salt made when Zinc reacts with Sulfuric Acid | Zinc Sulfate (look at the first words!) |
| The name of the salt made when Iron reacts with Nitric Acid | Iron Nitrate (look at the first words!) |
| The two chemicals made when Iron reacts with Copper Sulphate | Copper and Iron Sulfate |
| What colour will show when Iron reacts with Copper Sulphate, and why? | Orange, the colour of the copper that has been formed |
| What are the two chemicals needed for Iron to rust? | Water and Oxygen |
| Why is there no reaction between Copper and Iron Sulfate? | Copper is less reactive than Iron, so copper can not take away the sulfate |
| Magnesium reacts with Zinc Sulfate but Silver does not react with Zinc Sulphate. Order the 3 metals (most reactive first) | Magnesium>Zinc>Silver |
Created by:
UrsulineChem
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