Answer:
10 Kilograms
Explanation:
"millimetres" is a unit of measurement and is used for measuring distances.
"newton" is a unit of weight and is used to represent the weight of an object
:kilograms" is the one used for measuring mass
Answer: hydrogen
All acids have the hydrogen ion in common
Explanation:
According to Arrhenius theory, an acid is a substance which dissociate in water to produce hydrogen ions, H+;
For example: HCl --> H+ + Cl-
while a base is a substance which gives hydroxide ions, OH-, in water
For example: NaOH(s) --> Na+(aq) + OH-(aq)
Thus, all acids have the hydrogen ion in common
