Match the effects on the concentration of SO3 gas when the following changes occur after initial equilibrium has been established in this system (N. C. = no change).
2502(g) + O2(9) 2503(g) + 46.8 kcal
pressure increases
increase [02]
increase volume of chamber
adding a catalyst
raising the temperature

We just started a new lesson in chemistry and everyone hates it and i dont get it one bit. i hate school. h el p.balanced equationc3h8+5o2-> 3co2+4h2o1.) if you start with 14.8g of propane(c3h8) and 3.44g of oxygen, which is the limiting reactant -check my answer 2.)what mass of excess reagent is left over? 3.)what mass of carbon dioxide can be made? 4.)what mass of water is produced?

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

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.