Energy change = energy to break bonds - energy to make bonds.
Energy change = 2736 - _______
Energy change = - _______ kJ/mol
Question 3
3.
Other Answer Choices:
4H + 2 O (atoms)
Activation energy
Energy change
Question 4
4.
Question 5
5.
Bonds broken = 2x H-H + 1x O=O
Energy to break bonds in ractants = _______ kJ/mol
Bonds formed = _______ O-H
Energy to make bonds in product = _______
Energy change = energy taken to break bonds in reactants - energy released when bonds form in products = _______ (hint include the sign)
Question 6
6.
Other Answer Choices:
Activation energy
Energy change needed to break bonds in reactants
Energy given out when new bonds form in products
In an _______________ reaction energy is released to the surroundings as heat.
Bonds are broken in the ______________ and new bonds formed in the _____________ Breaking bonds, _____________ , energy and forming bonds ______________ , energy
The energy change for a reaction = (total energy taken in to __________ bonds in the reactants) - (total energy released when new bonds _________ in the products).
As the energy, given out, (when ____________ the bonds) is greater than the energy, taken in, (when _____________ the bonds) the reaction is exothermic
