Burrows, tracks, coprolites, nests and footprints are examples of traces that can be found in a fossil.
Answer:
The only one I know is NaC2HO4.
There is Sodium, Carbon, Hydrogen and Oxygen.
1 atom in sodium, 2 atoms in carbon, 1 atom in hydrogen and 4 atoms in oxygen completeting the total of 8 atoms in this element.
Its b
Because kw= (H+ )x (oH-)
an atom is the smallest unit of a pure substance or element that can exist and still retain the properties of the original substance or element
Jim collects a sample of beach sand during a class trip. After a close inspection of the sample he classifies it as a ____________ mixture. A) heterogeneous
