Determine the unknown mineral using the information given below. Be sure to use significant figure rules when doing calculations. Mass is shown on the triple beam.

Scale Test Mineral
10 diamond
9 corundum
8 topaz
7 quartz
6 feldspar
5 apatite
4 fluorite
3 calcite
2 gypsum
1 talc
Mineral H. Density, g/cc
tellurium 2 2.07
galena 2.5 7.58
anglesite 2.5 - 3 6.4
chalcocite 2.5 - 3 5.6
copper 2.5 - 3 9.0
gold 2.5 - 3 19.3
silver 2.5 - 3 10.5
arsenic 3.5 5.7
barite 3 - 3.5 4.4
dolomite 3.5 - 4 2.9
platinum 4.5 21.5
willemite 5.5 4.0
magnetite 6 5.18
pyrite 6 - 6.5 5.02
pyrolusite 6 - 6.5 5.0
cassiterite 6.5 6.9
diamond 10 3.52
Volume of water displaced = 0.175 L

Mass: g
Density. g/cm³
Hardness: = -

Determine the unknown mineral.

Unknown mineral:

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages