Tính thể tích gần đúng ra ml của nguyên tử X nếu đường kính hạt nhân là 2*10-5 nm (Cho đường kính
nguyên tử gấp 10^{4}[/tex]
lần đường kính hạt nhân và công thức tính thể tích là V = 4/3r
3
.

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.

How many moles of potassium are needed to react completely with 12.8 moles of magnessium bromide?

The reaction below shows a system in equilibrium. how would a decrease in temperature affect this reaction? a. the rate of formation of the gases would increase. b. the equilibrium of the reaction would shift to the left. c. the equilibrium would shift to cause the gases to sublime into solids. d. the chemicals on the left would quickly form the chemical on the right.