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How much energy is evolved during the formation of 98.7 g of Fe according to the reaction below?
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What take place during a chemical reaction?
During a chemical reaction the breaking of the older bonds and formation of the new bonds take place.
Can a chemical reaction occur during the electrolysis of water?
yes. hydrogen and oxygen gas will be evolved
What are energy changers?
Chemical reactions usually involve change of heat due to energy absorbed or evolved during reaction.
What is the only thing that can get changed in a balancing equation?
It is the mass defect during a fission reaction. Enrgy evolved during a radioactive fission can be calculated using the formula gived by Einstein e =mc
When is a chemical reaction categorised as a precipitation reaction?
A chemical reaction is categorized as a precipitation reaction when it involves the formation of a solid precipitate. This occurs when two aqueous solutions react to produce an insoluble product that separates out as a solid. The solid precipitate typically forms due to the combination of ions from the different solutions.
Is energy evolved during formation of a mixture?
no. not usually
What is the formation of a solid in a solution during a chemical reaction?
Precipitation.
What take place during a chemical reaction?
During a chemical reaction the breaking of the older bonds and formation of the new bonds take place.
Can a chemical reaction occur during the electrolysis of water?
yes. hydrogen and oxygen gas will be evolved
What gases could have evolved during the reaction of sulfuric acid and metal?
Hydrogen. Acid plus metal is always hydrogen.
What are energy changers?
Chemical reactions usually involve change of heat due to energy absorbed or evolved during reaction.
What does bubbling indicate in a chemical reaction?
The creation of bubbles in a liquid can result from:Boiling (formation of gas phase material) a physical changeDissolution of dissolved gasses (a physical change) from a liquid as it warmsThe creation of gases by reactants in an aqueous environment (chemical change)
During dynamic equilibrium how do forward reaction rate and reverse reaction rate compare?
Equilibrium at this point means that the forward reaction and the backward reaction are taking place at the same rate. The formation of the products and the reactants are at equal rate.
What best describe the enthalpy of formation of a substance?
The enthalpy of formation of a substance is the amount of energy that was put in or evolved from the making of that substance from the individual elements.
Is combustion of magnesium reaction with exothermic or endothermic?
If you mean the enthalpy of formation then no, it is exothermic.
Do reactants and products break during a chemical reaction?
In a reaction, the bonds in reactants are broken down (endothermic) and new bonds formed. The new bonds formed (exothermic) will result in the formation of the products.
What is the only thing that can get changed in a balancing equation?
It is the mass defect during a fission reaction. Enrgy evolved during a radioactive fission can be calculated using the formula gived by Einstein e =mc
