Based on the table, which atom has a charge of - 1

How many grams of oxygen is needed to produce 6.00 mole of sulfur dioxide

What do chemical symbols and formulas represent, respectively?

A student performs a crystallization on an impure sample of biphenyl. the sample weighs 0.5 g and contains about 5% impurity. based on his knowledge of solubility, the student decides to use benzene as the solvent.

What is another name for the rare earth elements? a. Group 1 c. Group 6 b. Lanthanide d. Alkaline Earth

Imagine that you mix 50g of a solute with 100g of water at 40 degrees celsius. Classify each solute by whether it would completely or partially dissolve under these conditions. NaNo3, K2Cr2O7, KCl, KClO3, KNO3

A reaction is in equilibrium as shown: a + b c + d. calculate the equilibrium constant if the final concentrations stabilize at: a = 9.60 m b = 10.0 m c = 4.00 m d = 4.00 m 0.167 0.408 2.45 5.99

When 10 liters of a gas at 1 atm is compressed to 3 liters at constant temperature, what property of the gas changes?

What happens to the particles of a substance when thermal energy is added to the substance? A.) it's particles do not vibrate at all. B.) it's particles move faster. C.) it's particles move closer together. D.). It's particles move slower.

Suppose that you drop three objects into a glass of water: a piece of styrofoam, a piece of oak, and a gold ring. Which float, and which sink? density of styrofoam: 0.005 density of gold ring: 19.32 density of oak: 0.70

How many molecules following formula 3Al2 (SO4) 3