Answer: D
A catalyst is a substance that alters the reaction and doesn't involve in the reaction.So if the Manganese was a catalyst the mass would not have decreased,it would just continue aletring the reaction until its used up.
The Manganese is not acting as a catalyst
The Presidential election caused the lincoln douglas debates
They were debating about their beliefs, for example slavery and what they thought about it
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Well, when the countries of<span> France and Britain had been at war, Washington had taken a middle position. What he did was proposing a declaration of neutrality. Which by the way had been a statement that the United States of America would support neither France or Britain in the war. Hamilton and Jefferson agreed that getting involved in the war wouldn't have been great for the United States of America.
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