The fusion reaction 2/1 H + 3/1 H =4/2 He + n + energy releases 2.8 x 10^-12 joules of energy. How many such reactions must occur every second in order to light a 100-watt lightbulb? Note that one watt equals one joule per second.

What are the similarities of physical and chemical change ?

The diagram below shows a cell placed in a solution. a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution. only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it. it will expand as water moves into it. it will shrink as water moves into it.

Which states of matter have particles that move independently of one another with very little attraction?