Answer:
B
Explanation:
This is because exothermic reactions occurs when bnds are formed, and involves the release of energy.
Endothermic reaction occur when bonds are broken,and involves absorption of energy.
Answer:
A.
Explanation:
melting of ice will increase water in oceans due to which water in oceans will increase and salinity will decrease. hence, melting of ice caps near the north pole affects salinity of the ocean
Answer:
coal
Explanation:
fossil fuels are formed by natural process.
It is a reaction between an element and a compound that results in a different element and compound
1 ba+2 br——>1 babr2
u just have to make sure u have the same number of each type of atom on either side of the equation:)