When 50.0 ml of 0.500 m h2so4 is added to 50.0 ml of 1.00 m koh in a coffee cup calorimeter, the temperature of the solution rises from 25.10°c to 31.77°c. calculate δh of this reaction (in kj/mol koh). assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are the same as that for pure water (c = 4.184j/g°c).a. -112 kj/mol kohb. -2.79 kj/mol kohc. -74.9 kj/mol kohd. -1.86 kj/mol kohe. -55.8 kj/mol koh

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.