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How does change of state take place?
for a state change to happen it must lose or gain or loose kinetic energy
What is the primary reason why chemical bonds form?
for energy:) The major reason for chemical bonding is to produce energy. As a reaction occurs and begins to form products at a lower energy, energy must be released.
If it takes 436kJ to break a bond how many kilojoules are released when the same bond is formed?
The required energy must be higher than the bond energy.
Energetically what must be done or what must happen before water can boil?
The water must absorb sufficient heat energy to raise its temperature to the boiling point PLUS the Latent Heat of Vaporization at that Temperature and Ambient Pressure..
What must happen for ATP to release energy to the cell?
glycolysis, krebs, electron transport chain, alcoholic fermentation, and lactic acid fermentation
What must happen for glycolysis to begin?
There must be an input of energy from ATP.
What does Mandela say must happen in order for his people to be completely free?
you must except the choice of freedom to be free.
What has to happen in order for a gas to become a liquid in terms of energy?
Energy must be released-- A gas has a high amount of energy with it's atoms speeding around inside of it, a liquid has less energy, and a solid has the least. energy.
What does Nelson Mandela say must happen in order for his people to be completely free?
you must except the choice of freedom to be free.
What must happen for an electron to move to a higher energy level?
Fission
What must happen for carbon dioxide to sublimate at a given pressure?
Energy must transfer to the carbon dioxide from its surroundings
Why must food be digested?
Digestion is necessary because for energy from the food to be released and carried into the cells in our body the food must be broken down into soluble molecules for it to diffuse into the cells. Then energy is released during respiration.
Why are endothermic reactions rare?
Chemical reactions occur spontaneously when the free energy of the product is less than the free energy of the reactants. Free energy is a combination of thermal energy (heat) and entropy. If thermal energy is absorbed during a reaction, there must be an exceptionally large increase in entropy to give a net reduction in free energy.
What must happen to an electron residing in the 1s orbit in order to reach the 3s orbit?
Its energy level must be increased.
Will pushing on a car always change the cars mechanical energy what must happen for the cars kinetic energy to increase?
I don't know
If an electron is in an excited state it must lose energy when it falls to a lower state. What happens to the energy that is lost?
This energy is released as a photon.
When an electron gets excited is energy released or absorbed?
To get excited, it must absorb energy. To get back to its ground state, it releases energy.
