Matter can change to a solid depending on how hot or cold it is. I turns into a liquid if you melt it, and it turns into a gas when it evaporates.
Answer :
Part 1 : Yes, this reaction will take place.
Part 2 : No, this reaction will not take place.
Explanation:
Single replacement reaction : A chemical reaction in which the more reactive element replace the less reactive element.
It is represented as,

In this reaction, A is more reactive element and B is less reactive element.
Reactivity series : It is used to determine the products of the single displacement reactions. As we know that in a single displacement reaction, the most reactive metal displaces the least reactive metal.
Part A :
This reaction will takes place because iron metal is more reactive metal than copper metal. So, iron metal can displaces copper metal from its solution.
The chemical reaction will be:

Part B :
This reaction will not takes place because copper metal is less reactive metal than iron metal. So, copper metal can displaces iron metal from its solution.
The chemical reaction will be:

Answer:
732.0601 mmHg
Explanation:
Given data:
Pressure = 97.6 KPa
Given pressure in mmHg = ?
Solution:
Kilo pascal and millimeter mercury both are units of pressure.
Kilo pascal is denoted as "KPa"
Millimeter mercury is denoted as " mmHg"
Kilo pascal is measure of force per unit area while also define as newton per meter square.
It is manometric unit of pressure. It is the pressure generated by column of mercury one millimeter high.
Conversation of kilopascal to mmHg:
97.6 × 7.501 = 732.0601 mmHg
Well. Depends.
You plan on doing a school project?
You should try baking soda and vinegar, almost everyone knows about this.
Orr you can use mentos and soda.
Or for fun, just get a watermelon or any fruit and use rubber bands all around it until it goes BOOM!
Hope this helps :D