1. What properties of metals makes them useful in these applications?
(a) Aluminum is used to make the outside surface
of some car doors.

(b) Thin gold wires are used to connect one part of
a computer chip to another.

(C) The bottoms of some frying pans are made of
copper
This is science

(C) The bottoms of some frying pans are made of copper.

Explanation:

As metal have the property that they can conduct heat within them , hence the bottom of frying pans are made of copper so that they can conduct much of the heat and use it for the cooking efficiently.

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.