The mass of the quartz crystal shown below is 10 grams, and its volume is 4 cm3. what is the density of quartz?
a. 3.5 g/cm3
b. 2.5 g/cm3
c. 2.0 g/cm3
d. 3.0 g/cm3

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

Free answer. the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .