KA1 Complete the sentence below.In exothermic reactions the chemical energy ____________ and the extra energy is ____________.decreases; absorbeddecreases; releasedincreases; absorbedincreases; released

When energy is released, the reaction is said to be _____.

When energy is absorbed, the reaction is said to be _____.

Which of the following is true for an exothermic reaction?Group of answer choicesHeat is taken in and ΔH is positiveHeat is taken in and ΔH is negativeHeat is given out and ΔH is positiveHeat is given out and ΔH is negative

Label each of the following as being an example of an endothermic or an exothermic reaction.a. a reaction where the surroundings decrease in temperature from 25 oC to 19 oC  Blank 1 Question 26b. N2(g)  +  3 H2(g)  -->  2 NH3(g)    ΔH = -92.4 kJ

Which of the following refers to the heat of a chemical reaction as the energy that is absorbed or released when a reaction takes place?StoichiometryChemical ReactionVaporizationHeat of Reaction