Answer:
1
Explanation:
A <em>simple cubic unit cell</em> means that there is 1 atom of Hg in each of the eight corners of a cube. Each of these atoms "contributes" one-eight (1/8) of its mass to form one single unit. With 8 atoms each contributing 1/8, the unit cell has a total of one atom of Hg.
This difference between the 2, can be used to determine the heat content or enthalpy of the system. More specifically though, it allows for determining the energy difference between the 2.
Explanation:
sodium reacts rapidly with water unlike calcium which reacts moderately with water by forming hydrogen gas
Answer:
Option C. Silver is a catalyst in this reaction.
Explanation:
From the question given, we discovered that the addition of silver in the reaction between ethene and oxygen produces epoxyethane at a much faster rate. This simply means that silver act as a catalyst in this reaction.
A catalyst is substance that increases the rate of a reaction without itself taking part in the reaction. The catalyst creates an alternate path way by lowering the activation energy so that the reaction can proceed at a much faster rate.
Since the addition of silver makes reaction to occur at a much faster rate, it therefore means that silver act as a catalyst in the reaction.
The negative particles flow or are pushed along a path