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what type of chemical reaction do you add heat to?
They are all part of the checklist
endothermic
exothermic
all of these are on the checklist
activation energy
true
it is the same material but it has melted
a new substance is made
Although there are many items on the chemoical changes checklist.....what is the only 100% way you can be sure a chemical change has taken place?
They are all part of the checklist
endothermic
exothermic
all of these are on the checklist
activation energy
true
it is the same material but it has melted
a new substance is made
Which one is not a item to look for to see if a chemical change has taken place? In other words which one is not part of the chemical changes checklist?.......careful on this one it could be tricky!
They are all part of the checklist
endothermic
exothermic
all of these are on the checklist
activation energy
true
it is the same material but it has melted
a new substance is made
Which one is not a item to look for to see if a chemical change has taken place? In other words which one is not part of the chemical changes checklist?
They are all part of the checklist
endothermic
exothermic
all of these are on the checklist
activation energy
true
it is the same material but it has melted
a new substance is made
Which one is not a item to look for to see if a chemical change has taken place? In other words which one is not part of the chemical changes checklist?
They are all part of the checklist
endothermic
exothermic
all of these are on the checklist
activation energy
true
it is the same material but it has melted
a new substance is made
Family 1 and 17 are very reactive because they are so close to filling their outer valence shell. Family one only needs to get rid of one electron and family 17 only needs to gain one electron.
They are all part of the checklist
endothermic
exothermic
all of these are on the checklist
activation energy
true
it is the same material but it has melted
a new substance is made
What type of chemical reaction releases heat?
They are all part of the checklist
endothermic
exothermic
all of these are on the checklist
activation energy
true
it is the same material but it has melted
a new substance is made
What is the name of the energy needed to start a chemical reaction?
They are all part of the checklist
endothermic
exothermic
all of these are on the checklist
activation energy
true
it is the same material but it has melted
a new substance is made
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