Which equation is balanced? A) Mg3N2 + H2O 3MgO + 2NH3
B) C3H8 + 5O2 H2O + 3CO2
C) Zn + 2HCl ZnCl2 + H2
D) 3H2SO4 + 2Fe Fe2(SO4)3 + H2

Seawater contains approximately 3.5%nacl by mass and has a density of 1.02 g/ml. what volume of seawater contains 7.5 g of sodium?

Explain that newton first law,second law and third law of motion?

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)