Describe how the highlighted tool works in each scenario. Explain how the tool makes each task easier. Colin needs to remove loose dirt from the floor. He uses a BROOM to quickly sweep the dirt into one place.
Piper needs to remove a nail from a piece of wood. She uses a CLAW HAMMER to pull out the nail.
Beckett needs to bring salad dressing to a picnic. He uses a container with a SCREW TOP LID and turns the lid until it’s tight.

answer: the enthalpy of the overall chemical reaction is +87.88 kj or +88 kj.

according to hess's law, the overall enthalpy of a reaction is the difference between the sum of enthalpy values of all the products and the sum of enthalpy values of all the reactants.

δh(reaction) = ∑nδh(products) - ∑nδh(reactants)

δh(reaction) = [δh +δh] - [δh]

δh(reaction) = [1(-287.02) + 1(0) ] - [1(-374.9)] kj = +87.88 kj

here, δh (pcl3) = -287.02 kj, δh(cl2) = 0, δh(pcl5) = -374.9 kj

therefore, enthalpy of the overall reaction is +87.88 kj or +88 kj.

im not exactly sure but i think its b!