If I found a piece of metal and determined its mass to be 118.1 g and its volume to be 15 cm3 which of the metals on the chart could I infer that it was.
Fluid
hydrogen
helium
air
Density (g/mL)
0.00009
0.0002
0.0013
0.0014
0.002
oxygen
carbon dioxide
ethyl alcohol
machine oil
Solid
Styrofoam™
cork
oak
sugar
salt
aluminum
iron
nickel
Density (g/cm)
0.005
0.24
0.70
1.59
2.16
2.70
7.87
8.90
8.92
11.34
19.32
0.79
water
0.90
1.00
1.03
1.26
seawater
glycerol
mercury
copper
lead
gold
13.55

Asample of digestive juice was removed from the stomach of a pig. the juice was placed in a test tube along with some grains of wheat. a second test tube was set up containing an equal number of wheat grains, with distilled water rather than digestive juice. the test tubes were kept for 8 hours at 40 degrees c. after 8 hours, the grains inside the digestive juice had broken into tiny particles. the grains of wheat, in the water, were wet but otherwise unchanged. what is the control group?