So I guess the idea here is for me to give you the correct answers and you'll check them against yours. I have a better idea. You give me your answers for each and I'll let you know if they are correct or not.
From your last sentence you don't want a quick check. You're answer mooching.
Reactant and Product Energy Change Quick Check
1.In order for a reaction to occur, which action must happen?(1 point)
Molecules must divide at a low enough energy to break bonds.
Molecules must collide at a high enough energy to break bonds.
Molecules must divide at a high enough energy to break bonds.
Molecules must collide at a low enough energy to break bonds.
2.Which phrase best describes activation energy?(1 point)
the energy required to rearrange and switch individual molecules within two compounds
the minimum amount of energy required to form bonds and end a chemical reaction
the minimum amount of energy required to break bonds and start a chemical reaction
the energy given off when rearranging and switching individual molecules within two compounds
3.Molecules are not reacting using current methods. Which change can encourage a reaction?(1 point)
adding another chemical
speeding up the molecules by mixing
adding heat
removing heat
When sodium (Na) and chlorine (Cl) are combined, a small amount of table salt is formed and a bright yellow light and a lot of heat are given off. Does it take more energy to break the bonds of the reactants, or is more energy released when forming the bonds of the products? How do you know?(1 point)
More energy is released when forming the bonds of the products because a lot of heat is given off, which indicates energy was released.
It takes more energy to break the bonds of the reactants because a lot of heat is given off, which indicates energy was absorbed in the beginning.
More energy is released when forming the bonds of the products because yellow light is given off, which indicates energy was released.
It takes more energy to break the bonds of the reactants because yellow light is given off, which indicates energy was absorbed in the beginning.
5.When hydrogen burns in oxygen and forms water, which bonds are broken and which bonds are formed?(1 point)
Two H–H bonds are broken, one O–O bond is broken, and four H–O bonds are formed.
Two H–H bonds are broken, one O=O bond is broken, and four H–O bonds are formed.
Two H–H bonds are broken, one O=O bond is broken, and two H–O bonds are formed.
One H–H bond is broken, one O–O bond is broken, and two H–O bonds are formed.
Yall my grade is so bad in this class
anything helps at this point.
8 answers
@DrBob222 bruh the program im doing has quizzes called quickchecks.
1) Molecules must collide at a high enough energy to break bonds.
2) the minimum amount of energy required to break bonds and start a chemical reaction
3) adding heat
4) More energy is released when forming the bonds of the products because a lot of heat is given off, which indicates energy was released.
5) Two H–H bonds are broken, one O=O bond is broken, and four H–O bonds are formed.
2) the minimum amount of energy required to break bonds and start a chemical reaction
3) adding heat
4) More energy is released when forming the bonds of the products because a lot of heat is given off, which indicates energy was released.
5) Two H–H bonds are broken, one O=O bond is broken, and four H–O bonds are formed.
alizabeth is right everyone!! ty <3 :D
Does anyone have the total potential energy quick check?
Alizabeth Adams is correct 5/5 thank you
@alizabeth adams tysm!!!
does anyone have reactants vs products quick check?
6 answers