5. Which pair of elements would combine to forin an ionic compound?

a. potassium and magnesium

c. silicon and oxygen

b. potassium and sulfur

d. silicon and sulfur

If 0.520 mol nitrogen has a volume of 17.0 L at some temperature and pressure, what volume would 0.750 mol carbon dioxide have at the same temperature and pressure?

0.07 mol sample of octane, C^6H^18 absorbed 3.5 x 10^3 J of energy. Calculate the temp increase of octane if the molar heat capacity of octane is 254.0 J/K * mol

NH4Cl and Na2CO3 total ionic equation and net ionic equation

Comparison of volume and weight factors when discarding waste in a landfill

What is an acid-base indicator?

What is an alloy consisting primarily of iron and carbon

How many moles of H2O are there in1.0g of H20?

Which property of gases allows them to be stored at high concentrations in a bottle of air freshener? What changes occur at the molecular level when ice cream melts and forms a liquid?

a gas has a volume of 6 liters and a pressure of 1.5 atm. if the container is compressed to a volume of 2 liters, what will the pressure of the gas be?

When metals react with nonmetals, an ionic compound generally results. what is the predicted general formula?