The answer is: 400 mm Hg
Hope this helps!
Have a nice day. :)
<em>Role of a catalysts in chemical reactions:</em>
<span><em>Catalyst is a substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process.</em></span>
D 4 grams
i need to write a couple more character for explanation so there
Answer: The answer is the second choice.
Explanation:
