Chemical Reactions and Equations  (
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Q. what are the differences between physical and chemical changes ...
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1 answer under Chemical Reactions and... 8 years, 11 months ago

A. physical - reversible (the change back is quite easy to do). chemical - "irreversible" (changing it back cannot be done easily). A physical change is when the same compound/chemical just... link
8 years, 11 months ago
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Q. why are certain reactions exothermic,while some are endothermic explain taking help of bond energy ...
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1 answer under Chemical Reactions and... 8 years, 10 months ago

A. Understand Exothermic reactions in this simple way, 1)Bonds are formed between atoms to become stable. 2)The species which has more energy is less stable. 3)So when two species form a... link
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Q. what arethe steps performed in balancing an chemical equation? ...
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1 answer under Chemical Reactions and... 8 years, 11 months ago

A. Write the unbalanced equation. Chemical formulas of reactants are listed on the lefthand side of the equation. Products are listed on the righthand side of the equation. Reactants and... link
8 years, 11 months ago
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Q. butane burns in air to give carbon dioxide and water vapour and heat write a chemical equation and balance it it will be exothermic or ...
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1 answer under Chemical Reactions and... 8 years, 10 months ago

A. The answer lies in the question itself: You say that it will release heat(isn't that what the definition of exothermic reactions tell us), hence, it'll definitely be exothermic in nature. As far... link
8 years, 10 months ago
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Q. What are alloys? ...
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0 answers under Chemical Reactions and... 2 years, 9 months ago
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