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joejo
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Why do geometric isomers only exist in the alkene family but not in alkanes?
What are different ways of increasing the rate of a chemical reaction?
What are different ways of increasing the rate of a chemical reaction?
joejo said:thx that clears things up a bit...As for increasing the rate of chemical reaction are there any more ways or just those...
WhirlwindMonk said:Temperature and in some cases, the concentration of the reactants, depending on the order of the reaction (if you are unsure of what I'm talking about, just ignore it).
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sorry, i didn't read your whole post. And i don't think catalysts speed up the reaction, they simply allow it to occur at a lower energy state by lowering the activation energy.
bross7 said:Lowering the activation energy is speeding up the reaction. Think of it in terms of a linear distance. If I am 5 miles from a store one day and 3 miles the next day, when will I get there faster?
An element is a pure substance made up of only one type of atom. A compound is a substance made up of two or more different elements chemically bonded together.
To calculate the number of moles, divide the given mass of the substance by its molar mass. The result will be the number of moles.
An exothermic reaction releases heat energy, whereas an endothermic reaction absorbs heat energy from the surroundings.
To balance a chemical equation, make sure that the number of atoms of each element on the reactant side is equal to the number of atoms on the product side. Use coefficients to adjust the number of molecules or compounds.
A physical change only alters the physical properties of a substance, such as its shape or state, while a chemical change results in the formation of new substances with different chemical properties.