it exists as atom or ion but not as sodium molecule. So there is no any sodium sodium bonding between two sodium atoms. Sodium combines with other element or group to form compounds of sodium like sodium chloride ,sodium carbonate ,sodium sulphate etc. Sodium has symbol Na and its atomic no. is 11 .
The colors in fireworks are created by the use of metal salts.
There is no reaction between the two.
Zn + MgCl₂ → n.r
This is guided by the activity series. In order for a single-replacement reaction to occur, the element can only replace one element in the compound if it is more active. Since Zn is less active than Mg, it is unable to replace Mg. Thus, there is no reaction.
Answer:
Combing of people or your hair is a chemical change and it is advisable to do so
Answer:
0.5 moles
Explanation:
u will get molar mass = 95.2 I think
then number of moles = molar mass÷ mass
=95.2÷180=0.5