Answer:
Newer
Explanation:
older fossils and rocks are found in lower strata than younger fossils and rock layers because the top layer fossils have not been there as long as the bottom layer fossils to be found deeper in the ground
Homogeneous or heterogeneous, Hope this helps!!
First you need to write out the original equation.
It needs to be balanced, though, so after balancing it should look like this:
The ionic equation would look like this. (Only aqueous solutions can be split up).
The net ionic equation only contains the products that are not aqueous. Therefore, the final net ionic equation should be:
So your answer is C.
Answer : a) 40075.14 J/mol
Explanation :
According to the Arrhenius equation,
or,
where,
= rate constant at = k
= rate constant at = 10 k
= activation energy for the reaction = ?
R = gas constant = 8.314 J/mole.K
= initial temperature = 440 K
= final temperature = 550 K
Now put all the given values in this formula, we get
:
Therefore, the activation energy for the reaction is 40075.14J/mol.