Answer:
Simply identify what elements are in a compound
Explanation:
For example in NaCl we have sodium (Na) and Chlorine (Cl)
In order to do this you would need to recognise the symbols for a certain element: O for oxygen; N for nitrogen; H for hydrogen etc.
A and D
Density is mass over volume, if mass decreases or volume increases density decreases
Answer:Thermal Energy is not a form of potential energy
Explanation:
Answer:
natural selection
Explanation:
it is a biological selection of genes, whether dominant or negative.
MgCO3 will remain undissolved and
NaNO3 will dissolve