Which would be most helpful to find the normal melting point and normal boiling point on a phase diagram?

Draw a vertical line through the triple point.

Draw a horizontal line at standard pressure (1 atmosphere, or 101.3 kPa).

Locate the region that describes the liquid phase, then trace its border.

Draw a horizontal line across the triple point.

In order to calculate the amount of heat transferred you must know the __ and specific heat of the material, as well as the change in temperature. a. volume b. density c. mass d. enthalpy

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)