What is the only non metal in group 14

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2