In both reactions 1 and 2, the temperature change was , meaning that the reactions heat.

answer for edge users, Reflect on the laboratory experiment. Lab: Enthalpy

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Explanation:

in both reactions 1 and 2, the temperature change was positive, meaning that the reactions gave off heat

Positive &gave off

I got it right on edge

3 hours because it is a decent distance.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.