Be(NO3)2 Determine what the coefficient will be to have 30 Oxygen (O) atoms.
Then, count how many atoms are in the new chemical formula.
Ве:
N:
O :

Smog is the term used to describe the combination of fog and smoke

An exothermic reaction is conducted in an insulated calorimeter filled with water. the calorimeter is then sealed so that there is no heat exchanged between the contents of the container and the surrounding air. which of the following statements is true about the reaction?

Idon’t know how to solve this question