Answer:
NA
Explanation:
the other three options are alkali earth metals like magnesium (they are all in group 2). Sodium is the only one that is not an alkali earth metal.
Answer:
6.2 x 
Explanation:
You are moving the decimal point six spots to the right.
Answer:
Explanation:
When there is difference between the concentration of the content of a cell and the solution surrounding the cell, there will be an Electrochemical gradient or Concentration gradient. Therefore, some solute will tend to move from the region of high concentration to the region of lower concentration through the cell membrane.
Such a movement is called Primary Active Transport
If the reaction is a chemical change, new substances with different properties and identities are formed. This may be indicated by the production of an odor, a change in color or energy, or the formation of a solid.