Barb tests the properties of three minerals and makes a data table to record her results, as shown below. PHYSICAL PROPERTIES OF
THREE MINERALS
Property 1 Property 2
Talc white not shiny
Graphite black shiny
Quartz none not shiny
Which two properties did Barb test?
streak and luster
streak and cleavage
mineral size and luster
hardness and mineral type

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.