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What chemical that will ignite spontaneously in air at a temperature of 130 degree Fahrenheit or below is identified by the term?
Wiki User
∙ 7y ago
This is a pyrophoric material.
Wiki User
∙ 6y ago
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Which energy change occurs in an operating voltaic cell?
Chemical energy is spontaneously converted to electrical energy.
What are three things that are often indications of chemical changes?
Chemical changes can be identified by 1. Color change 2. Fizzing 3. Temperature changes 4. Odor changes 5. Change in the state of matter (solid, liquid, gas)
Is temperature change chemical or mechanical?
chemical
What process might have cause the first cells to spontaneously generate over a very long period of time?
Chemical evolution is thought to have caused the first cells to spontaneously generate over a very long period of time.
Which type a biological agent was recently identified as an inefective chemical?
prion
What is 19celsius in Fahrenheit?
a chemical must be stored at 19 celsius. what is the temperature in degrees fahrenheit?
Do chemical reaction absorb energy spontaneously or do they release them?
Some chemical reactions are exothermic, some are endothermic.
What is chemical properites of silicon?
combine with oxygen, form amorphous or crystalline structures at room temperature. melting point of 2,570° Fahrenheit (1,410° Celsius)
Minerals are identified on the basis of what?
Yes, they are classified by element or chemical composition.
Who do atoms form chemical bonds?
Atoms spontaneously from chemical bonds in order to be stabilize as a molecule/lattice and reduce its energy.
What are considered Favorable chemical reactions?
Chemical reactions that occur spontaneously usually give off energy, usually heat.
What does the value of the equilibrium constant indicate?
When a chemical reaction reach the equilibrium she can not continue spontaneously.
Chemical reactions that energy often occur spontaneously?
endothermic: or energy absorbing reactions
Which energy change occurs in an operating voltaic cell?
Chemical energy is spontaneously converted to electrical energy.
Describe the role of energy in chemical reactions?
Chemical reactions that release energy often occur spontaneously. Chemical reactions that absorb energy will not occur without energy.
Several million chemical elements have been identified?
No.
What was the chemical identified in Carson's book.?
pot please
