A2.43g sample of mgso4 hydrate (mgso4 * x h2o) is heated and 1.19g of anhydrous mgso4 remains. calculate the miles of water (x) per 1 mole of mgso4.

Write two balanced equations 1. dissolving of solid sodium hydroxide in water 2. the reaction of sodium hydroxide solution with hydrochloric acid

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90