Calcium carbonate (CaCO3), an important
component of coral reefs, can decompose when
heated, forming calcium oxide (Cao) and carbon
dioxide (CO2) according to the equation below
Caco,
CaO + CO2
How many moles of CaO form when 98.60 g
CaCO3 decompose?
98.60 g CaCO3 =
mol CaO

55? i think maybe

step-by-step explanation:

no i do not : ( what is it?

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0