The 4 main one are Iron, oxygen, silicon, and magnesium<span />
Volume= Mass/ Density= 20/184
= 0.108 cubic cm
Answer:
Universal indicator can show us how strongly acidic or alkaline a solution is, not just that the solution is acidic or alkaline. This is measured using the pH scale , which runs from pH 0 to pH 14.
Explanation:
~Hope this helps
C. a plane for forming a scientific hypotheses