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