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- Heat is either absorbed or produced
- Production of a new solid
- Light is produced
- Gas is produced
- Change in color
- Smell
- Mass of object
- bubbling
- Color change
- object has gotten heaver
- object has gotten lighter
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoform 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
Wiki User
∙ 9y agoSome 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
Wiki User
∙ 8y agoSome 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
Wiki User
∙ 11y agoxainab
bubbles take place, colour changes, permanent change in state of matter, smell changes, heat is released or taken in are sumptoms of chemical change....
Wiki User
∙ 13y agoColor change
new substance created
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How many types of reaction names?
5 types of reactoin are there
What is the name of the chemical law on which promblems 4 5 are based?
Law of Chemical Reaction and Law of Chemical equilibrium
What is the chemical reaction for this equation C3H8 plus 5 O2 3 CO2 plus 4 H20 plus energy?
This is the chemical reaction for burning of propane.
What is the chemical equation for the burning of propane if all the products and reactants are in the gas phase?
The chemical reaction is:C3H8 + 5 O2 = # CO2 + 4 H2O
What would not speed up a chemical reaction?
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.
How many types of reaction names?
5 types of reactoin are there
What are the names of any four types of chemical reaction?
1. Synthesis2. Single replacement 3. Double replacement 4. Combustion 5. Decomposition
What are 5 key words in a chemical change?
These are: reaction, chemical formula, reactant, product, chemical equation.
What is the name of the chemical law on which promblems 4 5 are based?
Law of Chemical Reaction and Law of Chemical equilibrium
How many type of reaction?
5 types of reactoin are there
What is the chemical reaction for this equation C3H8 plus 5 O2 3 CO2 plus 4 H20 plus energy?
This is the chemical reaction for burning of propane.
One of 5 things have to happen for a chemical reaction to take place?
the requiredactivation energy is the basic factor for a reaction to start.
What are the characteristics of a chemical reaction with example?
5characteristics of chemical reaction 1, evolution of gas 2,formation of precipitate 3,change in temperature 4,change in colour 5,change in state
What is the chemical equation for the burning of propane if all the products and reactants are in the gas phase?
The chemical reaction is:C3H8 + 5 O2 = # CO2 + 4 H2O
What are the 5 important factors that influence the rate of a chemical reaction?
Temperature Surface area/phase of reactants Concentration of reactants Presence of catalyst Activation energy of reaction
What is the word equation for propane when burning?
The chemical reaction is: C3H8 + 5 O2 = 3 CO2 + 4 H2O
What are 5 main types of energy people experience?
chemical,electrical,nuclear,radiant,mechanical
