Answer: unit conversions can be done either simultaneously or separately
Explanation:
The molarity of a solution equals to the mole number of the solute/the volume of the solution. For NH4Br, we know that the mole mass is 98. So the molarity is (14/98) mol /0.15 L=0.95 mol/L.
<span>bright yellow light and lots of heat-energy.</span>
Quick answer: Exothermic reactions mean that heat has escaped the system. The answer is A. Heat is released.