Answer: E. It decreases the value of Eact.
Explanation:
Activation energy is the extra energy that must be supplied to reactants in order to cross the energy barrier and thus convert to products.
A catalyst is a substance which increases the rate of a reaction by taking the reaction through a different path which involves lower activation energy and thus more molecules can cross the energy barrier and more molecules convert to products.
The catalyst itself does not take part in the chemical reaction and is regenerated as such at the end.
Answer:
Produce CO2 = Both
Produces oxygen = Both
Use CO2 in photosynthesis = Both
Use O2 in cellular respiration = Both
Hope this helps! :)
Answer:
False
Explanation:
Magnesium is the element of second group and third period. The electronic configuration of magnesium is - 2, 8, 2 or 
There are 2 valence electrons of magnesium.
Only the valence electrons are shown by dots in the Lewis structure.
As, stated above, there are only two valence electrons of magnesium, so in the Lewis structure, two dots are made around the magnesium symbol.
Given that the electronic configuration is:- 
.
Orbital s cannot accommodate 3 electrons and also in magnesium it has 
. Hence, the statement is false.
C4H10 CH3CH2CH2CH3 or CH3(CH2)2CH3 Butane
Charcoal because of its surface area
