Exothermic Reactions:
The delta h is always NEGATIVE!
Energy is released
(delta is the little triangle in front of the H)
Yes, a change in temperature can shift the equilibrium of a reaction by changing the concentrations of reactants and products. The direction of the shift depends on whether the reaction is endothermic or exothermic. An increase in temperature will favor the endothermic reaction, while a decrease will favor the exothermic reaction.
Yes. it is true.
Yes, in a chemical reaction, reactants are transformed into products through the breaking and forming of chemical bonds. This process involves rearranging the atoms of the reactants to create new substances with different properties.
(True)
The reaction Fe(s) → FeS(s) is exothermic because it releases energy. The potential energy of the reactant is higher than that of the product in an exothermic reaction.
A. True. In a combination reaction, two or more reactants combine to form a single product. This type of reaction is also known as a synthesis reaction.
In exothermic reactions, the energy needed to break the bonds in the reactants is higher than the energy released when the products are formed. As a result, the excess energy is released to the surroundings in the form of heat. This results in a net release of energy during the reaction.
Yes, a combination reaction occurs when two or more reactants combine to form one product. This type of reaction typically involves the synthesis of a compound.
Yes, a change in temperature can shift the equilibrium of a reaction by changing the concentrations of reactants and products. The direction of the shift depends on whether the reaction is endothermic or exothermic. An increase in temperature will favor the endothermic reaction, while a decrease will favor the exothermic reaction.
In a chemical reaction, the total bond energy of the products must be lower than the total bond energy of the reactants for the reaction to be exothermic (energy released) and vice versa for an endothermic reaction (energy absorbed). This is based on the principle of conservation of energy.
Reactants are the starting materials of a reaction. Reactants combine to form the products.
True
Its value does not depend on which reactions are added.
No, this is not true. The energy contained in the reactants is 352 kJ, and the energy contained in the products is 394 kJ, suggesting that energy was released during the reaction. However, energy should be conserved in a chemical reaction, so the total energy in the products should be equal to the total energy in the reactants.
Yes.
Yes. it is true.
Yes, in a chemical reaction, reactants are transformed into products through the breaking and forming of chemical bonds. This process involves rearranging the atoms of the reactants to create new substances with different properties.