Physical and Chemical Changes Quiz (Form 1, Chemistry)

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Test knowledge on physical and chemical changes.

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Physical and Chemical Changes Quiz (Form 1, Chemistry)


Froggy Jumps Physical and Chemical Changes Quiz (Form 1, Chemistry)Versión en línea Test knowledge on physical and chemical changes. por YAKILI LMS 1 What is a physical change? a Change in state or form without new substance b Change in composition to a new substance c Creation of a new material from elements 2 Which is an example of a physical change? a Melting ice into water b Burning wood c Rusting iron 3 Which property remains the same in a physical change? a Molecular structure b Chemical identity c New substance formation 4 What is a chemical change? a A reversible change with same composition b A change of shape only c A new substance is formed 5 Which indicates a chemical change? a Color change with gas release b Change of state from solid to liquid c Dissolving sugar in water 6 Which is an example of a chemical change? a Crushing a roll of paper b Ice melting to water c Wood burning to ash 7 What is decomposition of copper(II) sulfate pentahydrate? a Loss of water and formation of copper sulfate b Physical grinding into powder c Dissolution in water 8 What salt forms after heating copper(II) sulfate pentahydrate? a Copper oxide b Copper carbonate c Copper sulfate without water (CuSO4) 9 What happens to water of crystallization in this experiment? a It is driven off as steam b It remains bound in the solid c It becomes new crystals 10 Which observation signals dehydration of copper sulfate? a Bubbling b No change in color c Color change from blue to white/gray 11 What gas is typically observed during decomposition of hydrated salts? a Steam (water vapor) b Oxygen c Hydrogen 12 Physical change example: sugar dissolving in water a Sugar dissolves but composition is same b Sugar decomposes completely c Sugar reacts to form a new compound 13 Chemical change example: sugar caramelizing a Change is reversible without new substances b Sugar simply dissolves c New compounds formed with color change 14 Is crystallization a physical or chemical change? a Chemical change b Physical change c Both 15 Rusting of iron is an example of which change? a Melting b Physical change c Chemical change 16 Which of the following is a property of physical changes? a Reversible with no new substance formed b Often produces a new substance c Always releases gas 17 Which statement best describes decomposition of CuSO4·5H2O? a Water addition to form hydrate b Loss of water and formation of anhydrous CuSO4 c Formation of copper metal 18 Copper sulfate pentahydrate loses water when heated. This is: a Hydration b Hydrolysis c Dehydration 19 What is the product after heating CuSO4·5H2O? a CuO and SO2 b CuCl2 and water c CuSO4 (anhydrous) and water vapor 20 Which change yields a new substance with different properties? a Chemical change b Phase change only c Physical change 21 Which is NOT a chemical change? a Dissolving salts in water b Burning paper c Digesting starch into simpler sugars 22 Which is a reversible physical change? a Combustion of sugar b Dissolving sugar in water and evaporating c Fermentation of sugar 23 When sugar is heated and forms caramel, this is: a Physical change b Chemical change c Phase change only 24 What indicates a chemical change with odor release? a Only temperature change b New substances with smell c No change in substance 25 Which experiment demonstrates physical change of sugar? a Sugar reacts with acid b Sugar burns c Sugar dissolves in water 26 In the CuSO4·5H2O experiment, what is left after heating? a Blue CuSO4 solution b Copper metal c White/gray CuSO4 residue 27 Which change is evidence of chemical change in food? a Bread bakes and smells b Bread dries out c Bread breaks into pieces 28 What is the main sign of a physical change in a substance? a Gas released b No new substance formed c New substance formed 29 Which change can be reversed easily? a Physical change b Chemical change c Both equally reversible 30 Which of these is a physical change? a Wood rotting b Blue copper sulfate formation c Ice melting to water 31 Which is an indicator of chemical change? a Color change with precipitate b Dissolving without color change c Change in state only 32 What is not produced in a physical change? a Color change b Heat c New substance 33 Dehydration of CuSO4·5H2O occurs when: a Water is removed b Copper is reduced c Oxygen is added 34 What starts a chemical change in food? a Filtration only b Cold storage c Heat or microbial action 35 Which shows physical change during heating? a Solid to liquid without new substance b Color change without substance change c New compound forms 36 Which is a chemical change in metals? a Malleable bending b Dissolving in acid without reaction c Rust formation 37 Which change is associated with sugar and water? a Fermentation (chemical) b Dissolution (physical) c Combustion (chemical) 38 What is formed when copper sulfate pentahydrate loses water? a Anhydrous copper sulfate b Copper metal c CuSO3 39 Which change is generally reversible? a Both equally reversible b Physical change c Chemical change 40 What happens to sugar when heated strongly? a Dissolution only b Melting only c Caramelization (chemical changes) 41 Which is a sign of a chemical change? a Change in texture only b Gas produced c Dissolving solid 42 Which experiment shows dehydration in salts? a Heating CuSO4·5H2O b Dissolving in water c Cooling crystallization 43 Which statement describes a physical change best? a New chemical species formed b Gas always released c No new substance formed 44 In chemistry, a change that forms a new substance is: a Chemical change b Physical change c Phase change 45 Which observation indicates a dehydration process? a Increase in mass b Color remains blue c Loss of water from hydrate 46 Which of these is not a chemical change? a Burning fuel b Milk souring c Evaporation of water 47 What happens when sugar dissolves in water? a Chemical reaction b Gas release c Physical change 48 When CuSO4·5H2O is heated, water leaves as: a Oxygen gas b Liquid water c Water vapor 49 Which change often involves gas formation? a Phase change only b Physical change c Chemical change 50 What describes a reversible change in matter? a Chemical change b Both equally reversible c Physical change

Physical and Chemical Changes Quiz (Form 1, Chemistry)

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Physical and Chemical Changes Quiz (Form 1, Chemistry)Versión en línea

por YAKILI LMS

What is a physical change?

Which is an example of a physical change?

Which property remains the same in a physical change?

What is a chemical change?

Which indicates a chemical change?

Which is an example of a chemical change?

What is decomposition of copper(II) sulfate pentahydrate?

What salt forms after heating copper(II) sulfate pentahydrate?

What happens to water of crystallization in this experiment?

Which observation signals dehydration of copper sulfate?

What gas is typically observed during decomposition of hydrated salts?

Physical change example: sugar dissolving in water

Chemical change example: sugar caramelizing

Is crystallization a physical or chemical change?

Rusting of iron is an example of which change?

Which of the following is a property of physical changes?

Which statement best describes decomposition of CuSO4·5H2O?

Copper sulfate pentahydrate loses water when heated. This is:

What is the product after heating CuSO4·5H2O?

Which change yields a new substance with different properties?

Which is NOT a chemical change?

Which is a reversible physical change?

When sugar is heated and forms caramel, this is:

What indicates a chemical change with odor release?

Which experiment demonstrates physical change of sugar?

In the CuSO4·5H2O experiment, what is left after heating?

Which change is evidence of chemical change in food?

What is the main sign of a physical change in a substance?

Which change can be reversed easily?

Which of these is a physical change?

Which is an indicator of chemical change?

What is not produced in a physical change?

Dehydration of CuSO4·5H2O occurs when:

What starts a chemical change in food?

Which shows physical change during heating?

Which is a chemical change in metals?

Which change is associated with sugar and water?

What is formed when copper sulfate pentahydrate loses water?

Which change is generally reversible?

What happens to sugar when heated strongly?

Which is a sign of a chemical change?

Which experiment shows dehydration in salts?

Which statement describes a physical change best?

In chemistry, a change that forms a new substance is:

Which observation indicates a dehydration process?

Which of these is not a chemical change?

What happens when sugar dissolves in water?

When CuSO4·5H2O is heated, water leaves as:

Which change often involves gas formation?

What describes a reversible change in matter?