Question 13 The vapor pressure of ethanol at 25°C is 7.828 kPa. Calculate the vapor pressure in atm. Be sure your answer has the right number of significant digits.

A cell needs ribosomes to

If the uncatalyzed reaction occurs in a single elementary step, why is it a slow reaction? Check all that apply. a. All reactions that occur in one step are slow. b. The probability of an effective three-particle collision is low. c.

Because oxygen is more electronegative than hydrogen, the water molecule is

What is the taste of the redulting muxture

The periodic table was developed based upon the work of which scientist? a. Dalton b. Newton c. Moseley d. Mendeleev

Arrange the following alkyl bromides in order from most reactive to least reactive in an SN2 reaction: 1-bromo-2-methylbutane, 1-bromo-3-methylbutane, 2-bromo-2-methylbutane, and 1-bromopentane.

A sample of pure lithium contains 7.99% lithium by mass. What is the % lithium by mass in a sample of pure lithium nitrate that has twice the mass of the first sample?

Which element is in the same period as Na, Li, or, Mg

NH4 + (aq) + OH - (aq) + H + (aq) + Cl - (aq) →NH4 + (aq) + Cl - (aq) + H2O (l). What is its net ionic equation?.

What is milk best described as? solution, suspension, compound, or colloid?