form of precipitate
color change
emission of light
evolution of gas, fluid or massive material (it depends on the original state of the chemical you are working with)
change of temperature
Some indicators of a chemical reaction are:
- change of color
- change of odor
- release of a gas
- change of the temperature
- change of the viscosity
- formation of a precipitate
- change of general appearance
- possible explosion
- possible chemiluminescence -formation of new compounds
Some indicators of a chemical reaction are:
- change of color
- change of odor
- release of a gas
- change of the temperature
- change of the viscosity
- formation of a precipitate
- change of general appearance
- possible explosion
- possible chemiluminescence -formation of new compounds
xainab
bubbles take place, colour changes, permanent change in state of matter, smell changes, heat is released or taken in are sumptoms of chemical change....
Color change
new substance created
5 types of reactoin are there
Law of Chemical Reaction and Law of Chemical equilibrium
This is the chemical reaction for burning of propane.
The chemical reaction is:C3H8 + 5 O2 = # CO2 + 4 H2O
Cold water and large pieces.The opposite of catalytic catalysts [that enhance the rate of a specific chemical reaction] are catalytic poisons [that generally halt a particular chemical reaction].An example is the introduction of the auto-exhaust catalytic converter: the catalyst was Palladium which was being poisoned by the Lead in the gasoline so we needed to convert to unleaded gas!Another way of thinking.1-Change of pressure for Reactions having liquid or solid reactants.2-Sound3-Color4-Shape of container.5-Place.
5 types of reactoin are there
1. Synthesis2. Single replacement 3. Double replacement 4. Combustion 5. Decomposition
These are: reaction, chemical formula, reactant, product, chemical equation.
Law of Chemical Reaction and Law of Chemical equilibrium
5 types of reactoin are there
This is the chemical reaction for burning of propane.
the requiredactivation energy is the basic factor for a reaction to start.
5characteristics of chemical reaction 1, evolution of gas 2,formation of precipitate 3,change in temperature 4,change in colour 5,change in state
The chemical reaction is:C3H8 + 5 O2 = # CO2 + 4 H2O
Temperature Surface area/phase of reactants Concentration of reactants Presence of catalyst Activation energy of reaction
The chemical reaction is: C3H8 + 5 O2 = 3 CO2 + 4 H2O
chemical,electrical,nuclear,radiant,mechanical