H + Cl ----> HCl
This is because H and Cl are both two molecules alone. It doesn't matter which way they collide because they have to collide with each other.
In NO + O ----> NO2, you can collide with either the NO or the O side of the compound molecule.
Exergonic reactions are chemical reactions in which energy is released as heat.
Light usually provides enough energy for exchange of electrons and carry out the chemical reaction.
The reactions in which the products can recombine to form reactants are called reversible reactions. These reactions never go to completion. They are represented by a double arrow between reactants and products.
No. Acid + alkali reactions are neutralisation reactions. Combustion is a reaction with oxygen.
Concept of limiting reactant is not applicable to the reversible reactions because in these reactions all the reactants are converted into products and no reactants remain at the end of the reaction.
The forward and backward reactions are equal.
Nuclear reactions involve the reaction of nuclei and does not involve transfer of electron as in regular chemical reactions.
MetalReplacingMetal
a catalyst speeds up the rate of reaction
Enzymes act as catalysts in biochemical reactions.
Enzymes speed up the chemical reactions by forcing the reactant molecules into their correct orientation. The enzymes also lower the required energy for collision to produce a reaction.
Chemical reactions involve collisions between molecules. most collisions don't have either the right orientation or enough energy for the reaction to proceed. the molecules just bounce off each other, unchanged. incidentally that is why reactions proceed faster as the temperature increases - high temperature means molecules are moving faster and are more likely to have the required energy to react.Enzymes are protein catalysts that force reactant molecules into the correct orientation and lower the required energy for a collision to produce a reaction.
Neutralization
ATP provides energy for the condensation reaction joining adjacent nucleotides.
It is important to control chemical reactions in industry.
Combustion is an oxidation reaction - a reaction with oxygen.
Such reactions are called Exothermic reactions.