Given a mass of 12 g and a volume of 3 ml, calculate the density

4g/mL

Explanation:

Data obtained from the question include:

Mass = 12g

Volume = 3mL

Density =?

Density = Mass /volume

Density = 12/3

Density = 4g/mL

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.