The amount of heat needed to raise the temperature of 1 gram of a substance by 1°C describes A. specific heat.
B. heat.
C, enthalpy.
D. calorimetry.

The density of a planet is 0.69 g/cm3 (density of water is 1.0 g/cm3). which of the following planets might this be? a. mercury b. venus c. saturn d. mars

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm