A liter of the gas mixture at equilibrium contains 0.0045 mol of N2O4 and 0.030 mol of NO2 at 10C. Write the expression for the equilibrium constant (Keq) and calculate the value of the constant for the reaction.

5. If 30mL of 0.5M NaOH (aq) was used to neutralize 10mL of HCl (aq), what is the concentration of the acid? Show work.

How many significant digits are in the measurements 14,433

The value of Zeff for a valence electron in an atom of silicon is?

1. What is the difference between an electric vehicle and those with a combustion engine? * Your answer

Why are polar gases, such as H2O and NH3, more likely to deviate from the ideal gas behaviors described by the kinetic molecular theory? A. The density of these gases is high, increasing the number of collisions and reducing their elasticity. B.

Will a parachute slow a skydiver more at a very high altitude or a lower altitude?

Carbon monoxide is: Only found in large cities An odorless, colorless, toxic gas Healthy to breath in A danger when driving on the open highway

What is a potential benefit of fuel cell cars? increased efficiency converting gasoline to energy no recharging necessary decreased automobile cost larger engines

Water is a great solvent. For example, it causes ionic compounds like sodium chloride (table salt) to dissociate. One of these reasons that water does is because it is polar molecule.

For most compounds with a single keto group in the molecule, equilibrium favors the keto form over the enol form of the compound. this is due largely to what?