This is physic.
because heat transfers from the hotter things to the cooler things
well it has cause a thermal reaction which causes the temperature to rise so by mixing those together we get the reaction you have the temp. rose
Answer: Hence, 2 moles of NaOH would neutralize 1 mole of 
Explanation:
One mole of hydrochloric acid neutralizes one mole of sodium hydroxide to give one mole of sodium chloride and one mole of water
When sulfuric acid is used in the place of HCl , 1 mole of sulfuric acid will neutralizes the 2 mole of sodium hydroxide and gives one mole of sodium sulfate and 2 moles of water. As we can see from the reaction:
Hence, 2 moles of NaOH would neutralize 1 mole of
Calcium is in group 2 period 4 of periodic table
Oxygen is in group 16 and period 2
neon is in period 2 and group 16.
Explanation:
Valence electron in calcium =2
valence electron in oxygen= 6
valence electron in neon= 8 valence electron.
Calcium is placed in s block group 2 of period 4.
oxygen is placed in period 2 and group 16
Neon is a p block element, placed in period 2 and group 16.
Calcium is a elecropositive element which can share or donates its electrons to for compound, it has oxidation state of +2 and hence placed in group 2
Oxygen is electronegative as it can accept or share 2 electrons to form a bond. It has oxidation of -2.
Example is CaO.
Neon has its outer shell complete it is an inert element which will not share or donate electrons. it has oxidation state of 0
