If3.91 potassium metal is allowed to react with oxygen,
O2, the reaction yields 7.11g of k2o.
How much oxygen was reacted?

In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.