This chapter introduces chemical reactions and equations, detailing how substances transform during reactions and the significance of balanced equations.
Structured practice
Flash Cards: Chemical Reactions and Equations
Flash Cards for the chapter - Chemical Reactions and Equations
1/20
Explain the reaction between iron and copper sulphate solution.
1/20
Iron displaces copper from copper sulphate solution, forming iron sulphate and copper metal.
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2/20
What is the product of the reaction between iron and copper sulphate solution?
2/20
The product is iron sulphate and copper metal.
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5/20
What is the chemical equation for the reaction between iron and copper sulphate solution?
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5/20
The chemical equation is: Fe + CuSO4 -> FeSO4 + Cu.
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6/20
Describe the reaction between zinc and dilute sulphuric acid.
6/20
Zinc reacts with dilute sulphuric acid to produce zinc sulphate, hydrogen gas, and heat.
7/20
What is the product of the reaction between zinc and dilute sulphuric acid?
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The products are zinc sulphate, hydrogen gas, and heat.
8/20
What is the chemical equation for the reaction between zinc and dilute sulphuric acid?
8/20
The chemical equation is: Zn + H2SO4 -> ZnSO4 + H2.
9/20
Explain the reaction between sodium sulphate and barium chloride.
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Sodium sulphate and barium chloride react to form barium sulphate and sodium chloride.
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What is the product of the reaction between sodium sulphate and barium chloride?
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The product is barium sulphate and sodium chloride.
11/20
What is the chemical equation for the reaction between sodium sulphate and barium chloride?
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The chemical equation is: Na2SO4 + BaCl2 -> BaSO4 + 2NaCl.
12/20
Describe the reaction between lead nitrate and potassium iodide.
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Lead nitrate reacts with potassium iodide to form lead iodide and potassium nitrate.
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What is the product of the reaction between lead nitrate and potassium iodide?
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The product is lead iodide and potassium nitrate.
14/20
What is the chemical equation for the reaction between lead nitrate and potassium iodide?
14/20
The chemical equation is: Pb(NO3)2 + 2KI -> PbI2 + 2KNO3.
15/20
Explain the reaction between silver nitrate and sodium chloride.
15/20
Silver nitrate and sodium chloride react to form silver chloride and sodium nitrate.
16/20
What is the product of the reaction between silver nitrate and sodium chloride?
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The product is silver chloride and sodium nitrate.
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What is the chemical equation for the reaction between silver nitrate and sodium chloride?
17/20
The chemical equation is: AgNO3 + NaCl -> AgCl + NaNO3.
18/20
What is a chemical reaction?
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A chemical reaction is a process in which one or more substances are converted into new substances with different properties.
19/20
What happens when milk is left at room temperature during summers?
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Milk sours and forms curd when left at room temperature during summers due to the action of bacteria.
20/20
What happens when an iron tawa/pan/nail is left exposed to humid atmosphere?
20/20
Iron tawa/pan/nail gets rusted when left exposed to a humid atmosphere due to the reaction of iron with oxygen and moisture.
21/20
What happens when grapes get fermented?
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Grapes get fermented to produce wine or vinegar due to the action of yeast on the sugars present in grapes.
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What happens when food is cooked?
22/20
Food undergoes chemical changes like caramelization, Maillard reaction, and denaturation of proteins when cooked.
