Mass of Mg(s) 0.31 g
Initial temperature of calorimeter23.6
contents
°C
Final temperature of calorimeter 36.8
contents
°C
Volume of calorimeter
100mL
Use the calorimeter data for the combustion of magnesium
to determine the molar enthalpy of reaction (in kJ/mol) for
magnesium. Input your 3 digit answer with no spaces or
commas. Record this value for use in subsequent
questions.

50 pts plz what is the physical state of matter of baking soda.

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.