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Exothermic chemical reactions release energy in the form of heat and sometimes light. A common example would be the combustion (oxidation) of methane*:
Methane: CH4 + 2O2 -----> CO2 + 2H2O + Energy (heat and light)
* The combustion of methane (natural gas) is commonly used to heat water, cook, and to heat homes.
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Which kind of change produces bubbles?
chemical
A chemical change produces a different kind of matter?
a chemical change proude a different kind of matter
What kind of energy produces heat because of many subatomic particles that are moving around in the air?
kinetic energy
What kind of energy does a gas oven have?
A gas oven primarily uses thermal energy generated from the combustion of natural gas or propane. When the gas is ignited, it produces flames that heat the oven's interior, cooking food through convection and conduction. This process converts chemical energy stored in the gas into heat energy, allowing for efficient cooking.
Why is rusting a chemical change?
Rusting is a reaction which combines molecules to form other molecules: metal + oxygen -> rust. The definition of a chemical reaction is molecules turning into other molecules, so rusting is a chemical reaction.
A kind of change in matter that produces a new substance?
Nuclear and Chemical changes result in new substances.
What kind of energy does the stick of a match have?
The stick of a match contains chemical energy, which is released when the match is struck, causing a chemical reaction that produces heat and light.
Which kind of change produces bubbles?
chemical
A chemical change produces a different kind of matter?
a chemical change proude a different kind of matter
What will happen when potassium and water together what kind of changes?
When potassium metal and water are mixed, a chemical reaction occurs. This exothermic reaction produces hydrogen gas and potassium hydroxide, which dissolves in the remaining water. This reaction can be vigorous and produce light, heat and sound.
What kind of energy does burning candle elicit?
Burning a candle produces light and heat energy through a chemical reaction called combustion. The heat energy is a result of the candle wax and wick being oxidized by the flame, releasing energy in the form of heat and light.
What kind of energy produced in building a bonfire?
A bonfire produces mainly thermal energy in the form of heat and light. The burning of the wood releases stored chemical energy in the form of heat and light energy.
What kind of chemical change happens when something changes color?
Chemical
What kind of energy does Gasoline Have?
Chemical that changes to heat that changes to mechanical.
What kind of energy does a burning candle elicit?
A burning candle produces light energy and heat energy through the process of combustion, where the wax and wick react with oxygen to release energy in the form of light and heat.
What kind of weathering chemically changes rock?
Chemical
What kind of chemical change produces?
Exothermic reactions. E.g. combustion, oxidation
