Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation: ( )Na2HPO4 → ( )Na4P2O7 + ( )H2O

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

The solid xy decomposes into gaseous x and y: xy(s) m x(g) + y(g) kp = 4.1 (at 0 °c) if the reaction is carried out in a 22.4 l container, which initial amounts of x and y will result in the formation of solid xy?