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Chemical reactions occur so that atoms gain stability. For example, oxygen will react with carbon because the product, carbon dioxide, has more chemical stability - in other words, each atom shares its electrons to give the other atom(s) in the molecule an electron arrangement of more stability that the one before.
Chemical reactions also occur in one of two circumstances:
a) the reaction is following a fundamental law of nature (enthalpy-its the nature of things to want to use the smallest amount of energy possible, so when a reaction can occur that produces more energy, it will. Also, entropy-its the nature of things to be as disorganized as possible, such as the breaking down or decomposing of material)
b) something forces the reaction (this one is self-explanitory)
Basically it just has to do with how the electrons orbiting the atoms in the molecules prefer to behave. Add: Reactions generally happen in order to cause the electrons to reach a lower, more stable energy state.
Chemical changes happen when the inter-molecular arrangements are changed within a substance by the action of heat, electricity or pressure on it. The new inter-molecular arrangements change the chemical reactivity, properties, state, looks, mass, weight of the substance permanently as chemical changes cannot be reversed.
E.G. :- Sugar (C12H22O11) when heated releases water, sugar charcoal because the heat has converted the hydrogen and oxygen into water and has broken the bonds in between the molecules of carbon, hydrogen and oxygen.
Chemical change happens when something is changed like rusting of iron, burning of paper and more but these is only a tip physical change is a state of matter that do not change for example tearing of paper, evaporation, condensation and more.
because of affinities between particles, i.e. a cation binds with an anion because the cation is positive and the anion is negative
according to difference in electronegativity of elements(+ cation , - anion) , activity of elements
Chemical changes are possible because atoms of the elements react with one another in order to become stable.
A chemical reaction occurs because the two elements have smaller amounts of energy compared to their reactants.
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What type of chemical reaction occurs when a disposable lighter is used?
What is the chemical reaction of a dispoiable lighter
Do the compounds remain the same as before the reaction when a chemical reaction occurs?
true
What chemical reaction occurs when gasoline and air are ignited?
Combustion is an oxidation reaction.
What chemical reaction occurs in the decay of the foods?
it lets of a gas and a mould growth occurs.
What type of chemical reaction occurs when energy must be provided for the reaction to take place?
This is an endothermic reaction.
When a chemical reaction occurs atoms are never?
When a chemical reaction occurs, atoms are never created or destroyed. They are simply rearranged to form new molecules. This principle is known as the conservation of matter.
What type of chemical reaction occurs when a disposable lighter is used?
What is the chemical reaction of a dispoiable lighter
What chemical reaction occurs in the choloroplast?
Photosynthesis.
What is a chemical reaction occurs?
a nail rusts
What is the speed at which a reaction occurs called?
The chemical term is reaction rate.
Do the compounds remain the same as before the reaction when a chemical reaction occurs?
true
What chemical reaction occurs when gasoline and air are ignited?
Combustion is an oxidation reaction.
What is the chemical reaction called that occurs in chloroplast?
photosynthesis
What occurs in a chemical reaction?
atoms are re arranged.
What chemical reaction occurs in the growth of the plants?
sugar
What is the word equation for the chemical reaction occurs in the barrel of burner?
The word equation for the chemical reaction that occurs in a burner is: fuel + oxygen → carbon dioxide + water + heat.
What chemical change occurs so that heat is given off?
this occurs in an exothermic reaction
