When boiling water begins to turn to steam, which of the following remains the same in both the liquid and the vapor?

A. phase

B. density

C. volume

D. temperature

Is acetylene a homogeneous or heterogeneous mixture

When reactions do not produce a gas as a product, what other way (s) can the progress of a reaction be measured in order to calculate a rate of reaction?

Which property of chlorine explains why it is likely to form a compound with an alkali metal a. it will accept one electron to complete its outer shell b. it will accept two electrons to complete its outer shell

A 3.00 g sample of unknown hydrocarbon is prepared for combustion analysis. after the hydrocarbon undergoes complete combustion, 8.80 g of co2 and 5.40 g of h2o are produced. what is the empirical formula of the unknown?

The ingredient label for a fruit drink reads: water, sugar, orange juice, high fructose corn syrup, vitamin C, sodium benzoate (preservative), Red 40, Blue 1.

Assuming that air contains 78 percent N2, 21 percent O2 and 1 percent Ar, all by volume. How many molecules of each type of gas are present in 1.0 L of air at STP?

Two children are playing tag. Child A who is doing the chasing can run 100m in 24 seconds Child B is running away from child A and can run 64m in 21 seconds.

What ion does a base increase

What is the definition of Amplitude?

An excess of NiCO3, 12 g, was added to 40cm cube of sulpheric acid, 2.0 mol/dm cube. The unreacted nickel carbonate was filtered out and the filtrate evaporated to optain the crystals.