I Sodium carbonate (NaCO2) is used in heating packs for professional athletes after any
minor injury. When mixed with water, Naco, produces thermal energy (heat energy) and can
reduce injury inflammation. To create a heating pack, doctors mix 0.8 moles of Naco, with an
excess amount of water. What is the mass of sodium carbonate used in the heating packs? Show
all work.

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone, due to its high light availability and warm water temperature

T(s) in2os] (m) 0 185 2.39 546 1.90 725 1.70 the decomposition of n205 can be described by the equation 2.68 given these data for the reaction at 45°c in carbon tetrachloride solution, calculate the average rate of reaction for each successive time interval. ntr s to 185 s 185 s to 546 s 546 s to 725 s number number number reaction rate: m/s m/s m/s