A steel cylinder has a volume of 246 cm3 and a density of 7.93 g/cm3. What is its mass in kilograms?

Jim poured Diethyl ether into a flask and taped a road flare to it. What would happen if he lit the flare and threw the flask?

Consider the following neutral electron configurations in which n has a constant value. Which configuration would belong to the element with the most negative electron affinity, E-ea? a. ns^2 b. ns^2 np^2 c. ns^2 np^5 d. ns^2 np^6

When one atom donates an electron to another atom the donating atom becomes a?

A mixture of 10 cm3 of methane and 10 cm3 of ethane was sparked with an excess of oxygen. After cooling to room temperature, thr residual gas was passed through aqueous potassium hydroxide. What volume of gas was absorbed by the alkali?.

Which change of state involves a release of energy? a) boiling c) condensation d) melting e) sublimation

What would be the total mass of the products of a reaction in which 25 grams of table salt decomposes into the elements sodium and chlorine?

The nucleus of a Helium atom has a charge equal to twice the proton's charge. Let FN denote the magnitude of the force the Helium nucleus exerts on one of the electrons in a Helium atom, and let Fe denote the magnitude of the force one electron in

What can you say about the past four decades?

Calculate the percent yield for the reaction above if 25.0 grams of H2SO4 was actually produced and the theoretical yield was predicted to be 42.0 grams. (% yield = Actual / theoretical x 100) SO3 (g) + H200 H2SO4 (9) O 59.5 O 168 O 0.595 O 1.68

Why does hot water freeze faster than cold water?