Answers;
F3S2 Name: Iron Disulfide
Lead(II) nitrate formula: Pb(NO3)2
Silicon tetrafluoride formula: SiF4
Answer:
fluorine
Explanation:
The element fluorine has 9 protons and 9 electrons.
Soil.
Heterogeneous means is can be separated and soil can be taken apart and separated according to its contents. (Rocks, dirt, grass). <span />
Temperature of somewhere.
It has a fixed mass
it does not change with the shape of the container
it cannot be compressed
it has fixed atom and molecules and limited to very small displacement
only vibrational motion occur in the molecules of solid .
