A bike rusting is an example of a chemical
change since rusting is a chemical reaction. New substances are formed from
this reaction. On the other hand, other choices given are just physical changes
because only the shape or the physical form of the substances are being
changed. An example of a physical change is cutting a paper.
Here you go, the working is in the picture above.
C4H6 is the answer.
Answer:
The barrier for activation energy will be lower.
Explanation:
As we know the minimum amount of energy required by the reactants to convert into products is called as Activation energy. Until this energy is attained the reactants fail to transform into products. Also, the lower the activation energy is, the greater will be the rate of reaction. Hence, a catalyst is employed in order decrease the activation energy.
Catalyst through different mechanism lowers the activation energy. Some of which are listed as,
1) By weaknening the bonds of reactants
2) By providing different pathway
3) By providing surface area
4) By holding close together the reactants
Below is a energy diagram of same reaction carried out in the presence of catalyst (Red) and absence of catalyst (Blue).
Answer:
I Would Go Back To When There Were Cavemen Because I Would Love To See How Things Went On And How Women/Men Handled Themselves
Explanation:
Why Would I Travel To When Cavemen Were Here?
Because I Have A Fuji Film And I Would Love To Come Back To This Day And Show Everyone That Cavemen/Dinosoars ARE Real
Yes they are correct because NaOH is a base, not an acid and baking soda is 8 on the pH Scale.