Which of the following best explains why the alkali metals have similar chemical properties? Choose 1
They are in the same period of the periodic table and so have the same number of valence
electrons.
B
They are in the same period of the periodic table and so have the same atomic number.
They are in the same group of the periodic table and so have the same number of valence electrons.
They are in the same group of the periodic table and so have the same atomic nu

What are transitions between a liquid and gas called? identify which way they are transitioning

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Since the gas in your graduated cylinder is a mixture of butane and water vapor, you must determine the partial pressure of the butane, pbutane, alone. to do this, consult a reference and record the partial pressure of the water vapor, pwater, at the temperature you recorded. use the following formula to compute the partial pressure of the butane. pbutane = atmosphere - pwater use the following combined gas law formula and compute the volume that the butane sample will occupy at stp. (hint: convert both temperatures to kelvin.) pbutane x voriginal = pstandard x vfinal troom tstandard use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. grams of butane you used “x” grams of butane ml of butane corrected to stp = 22,400 ml compute the theoretical molar mass of butane based on its formula and the atomic masses on the periodic table. compare your experimental results from #3 to the theoretical value of #4, computing a percent error of your findings using this formula: % error = measured value - accepted value x 100 accepted value use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. need asap