not double replacement
it will be synthesis
they are fusing the two elements
plz mark brainliest
Answer:
2h+02=h20
Explanation:
2 in front of h on left side
2 in front of h on right side
I am pretty sure that <span>If I were asked to compare matter in solid, liquid, and gaseous states, the statement which would best defined a gas is </span>highest energy, highest molecular motion, and least dense packaging of molecules. I choose this one because it's not sensible to <span>heat CO2 (in case of safety) and in the last option the amount of energy is not satisfying.
Hope it helps!</span>
Answer : 7.87 X

.
Explanation : To find the fraction of schottky defects in the given lattice of CsCl,
we use the formula,

on solving with the given values ,

and T as 645 + 273 K and rest are the constants.

we get the answer as 7.87 X

.
Balanced equation :
1 CaCO3(s) = 1 CaO(s) + 1 CO2(g)
hope this helps!