Se preparó una disolución disolviendo 30 g de dicromato de potasio (K2Cr2O7) hasta un volumen de un
litro. ¿Cuál es la concentración molar de la disolución?

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

What is the pressure of 0.500 moles of carbon dioxide gas in a 2.5 l tank and at a temperature of 301 k? (r=0.0821 l·atm/mol·k) 3.08 atm 1.2 atm 0.23 atm 4.01 atm 4.94 atm

In an exothermic reaction at equilibrium, what is the effect of lowering the temperature? a. the reaction makes more products. b. the reaction makes more reactants. c. the reaction is unchanged.