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Х16-1 Chemical and physical changes; Signs of chemical reaction Flashcards | StudBud
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Х16-1 Chemical and physical changes; Signs of chemical reaction
Х16-1 Chemical and physical changes; Signs of chemical reaction
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#chemistry #Elements #periodic #table #System #changes #chemical #reactions
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15
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1
Sign of chemical reaction
Variation of a smell
Change in color
Allocation of light
Allocation of heat
2
The smell of perfume is - ...
Physical change
Chemical change
3
Rusting of iron is - ...
Physical change
Chemical change
4
Photosynthesis is - ...
Physical change
Chemical change
5
Burning candle is - ...
Physical change
Chemical change
6
Liberation of gas
⬆
➡
⬇
⬅
7
The process of evaporation of water is a change...
Chemical
Physical
8
Drying of rain puddles is - ...
Physical change
Chemical change
9
Sign of Sedimentation
⬆
➡
⬇
⬅
10
Freezing of water is - ...
Chemical change
Physical change
11
Blackening of silver products in the air is - ...
Chemical change
Physical change
12
Substances that accelerate the reaction rate...
inhibitor
Catalysts
Water
Energy
13
Wildfire is - ...
Physical change
Chemical change
14
Yellowing of leaves in autumn is - ...
Chemical change
Physical change
15
Substances that slow the reaction rate
Catalysts
electricity
Energy
Inhibitors
