Which of the following will produce a 2 molar solution of copper (II) chloride? Group of answer choices

1- Measure 1 mole of copper (II) chloride and add water until there are two liters of solution

2- Add 1 mole of copper (II) chloride to 2 liters of water

3- Measure 2 moles of copper (II) chloride and add water until there is one liter of solution

4- Measure 1 liter of water and then add to it 2 moles of copper (II) chloride

Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.