Answer:
Single replacement is a reaction in which one element reacts with another compund to form another compound and another element.
planation:
Fossils can be found in rocks and stones and sometimes in shells.
Answer:
Q1) Mole ratio would be 1:1
Pv=nRT
where,p=199, R(constant)=8.314, V=4.67 T=30C=293K
n=pv/RT=0.38 moles
I believe it is sand. <span />
