General Chemistry Answers

"CH4 + 20\u21932\u2192CO2 + 2H\u00b2O" CH4 + 20↓2→CO2 + 2H²O

In a system at equilibrium, pressure changes will make the reaction favor the formation of either products or reactants depending upon which will increase the effect of the change. True or False?

The arrangement of elements in the periodic table is a direct consequence of the allowed values for the four quantum numbers. If the laws of physics allowed these numbers to have different values, the appearance of the periodic table would change.

I have a stock of 3.15mg/ml and I need to make a solution with water total volume of 200 ul with concentration of 200 ng/ml. I get serial dilution math but how do I make this pipettable volume?

2ZnS + 3O2 →  2ZnO + 2SO2

Determine the number of moles of zinc oxide produced when 2.5 mol of zinc sulfide is combined with excess O2

2ZnS + 3O2 →  2ZnO + 2SO2

Determine the number of moles of zinc oxide produced when 2.5 mol of zinc sulfide is combined with excess O2

Mg(OH)2 + HCl → MgCl2 + H2O

Determine the number of moles of magnesium chloride produced when 5.0 mol of HCl is combined with excess Mg(OH)2

Mg(OH)2 + HCl → MgCl2 + H2O

Determine the number of moles of magnesium chloride produced when 5.0 mol of HCl is combined with excess Mg(OH)2

10.6 g of anhydrous sodium carbonate combines with 18g of water to form hydrated sodium carbonate whose chemical formula is …. (Na=23, C=12, O=16, H=1)

Consider a metal bar with dimensions of l=3.54 cm, w=5.4 cm, and h=10.1 cm