A campfire is a combustion reaction, where wood or other fuel combines with oxygen in the air to produce heat and light, as well as carbon dioxide and water vapor. This reaction releases energy in the form of heat and light.
When butene decolourises bromine solution, it indicates that an addition reaction has occurred. The double bond in butene breaks, and the bromine molecules add across the two carbon atoms that were originally part of the double bond. This forms a colorless dibromide compound, causing the bromine solution to lose its characteristic orange color.
It's a precipitation reaction. A yellow precipitate will form, kind of like a bunch of little tiny yellow particles. At first, it will look a little like paint, but if you let it sit, the yellow particles will slowly drift to the bottom.
To determine if a chemical reaction takes place when two substances are mixed, you can look for evidence such as color change, formation of precipitate, gas production, change in temperature, and the evolution of light or sound. These observable changes indicate a chemical transformation has occurred.
A chemical reaction that has taken place is likely a precipitation reaction. The formation of a yellow solid suggests the creation of a new compound that is insoluble in the solution and precipitates out.
single replacement
it is a chemical reaction because u cant change it back into dough or flower, eggs, oil etc ingredents that is in it
Light-dependent reactions use the excited electrons produced by the light-capturing events that are used to produce ATP.
The reaction is likely an endothermic reaction. In an endothermic reaction, heat is absorbed from the surroundings, causing a decrease in temperature.
human hunting
Sexual reproduction
Division.
When butene decolourises bromine solution, it indicates that an addition reaction has occurred. The double bond in butene breaks, and the bromine molecules add across the two carbon atoms that were originally part of the double bond. This forms a colorless dibromide compound, causing the bromine solution to lose its characteristic orange color.
It's a precipitation reaction. A yellow precipitate will form, kind of like a bunch of little tiny yellow particles. At first, it will look a little like paint, but if you let it sit, the yellow particles will slowly drift to the bottom.
The oxidation of the iron in a car door into iron oxide is a chemical change. The reaction equation is 4 Fe + 3 O2 = 2 Fe2O3
10,000,000 and up.
a chemical change take a place
O2