A geometric construction (that can easily be done via compass-and-straightedge) is dynamically being illustrated below. Which construction is it?

Name a brittle metal , which is used to galvanize iron

An uncovered pot of water lies out in the sun. which statements correctly describe what happens at the surface of the liquid water? 1. the vapor pressure remains constant regardless of the water temperature. 2. the vapor pressure is produced by water molecules that have evaporated. 3. the vapor pressure increases as the sun heats the water in the pot. 4. evaporation stops once the vapor pressure reaches a certain point. 5. evaporation and condensation both occur on the liquid’s surface.

Which number should be placed before f2 on the reactants side equation to make equation balanced? xe + > xef4