Answer:
2NaCl + H2SO4 ----> Na2SO4 + 2HCl
Explanation:
The colour of copper sulphate solution is blue
Iron is a type of element because iron is metal and metal is also a mineral
Hoped this helped
The answers will help you!!!!!
~~~~~~~~~~~~~~~~~~~~~~~~~~
The statement describes from the relationship between multiple approaches and familiarity with similar work. The answers is would be last sentences. D. Multiple approaches may occur because scientists develop similar interests independently.