Answer:
Yes, it underwent a chemical change
Explanation:
Answer:
50g of CaCO3=1. 5∗(6. 022∗1023)=9. 035∗1023 oxygen atoms
Co2 is made of carbon ( atomic mass: 12) and oxygen (atomic mass : 16)
First : mass of 1 C atom + mass of 2 O atom = 12+(16*2)=44 amu so 1 mole CO2 =44 grams then 2.5 mole CO2 =44*2.5 =110 grams
So the answer is 110 grams