Explanation:
-plants that can absorb copper ions are grown on soil with low grade copper ores.
-the plants are burned and the copper compounds are within the Ash.
-copper ions can be leached from the Ash by adding sulphuric acid, this makes a solution of copper sulphate
-the displacement of scrap iron makes pure copper metals.
Answer:
neutral
Explanation:
19+3=22
22 protons & 22 neutrons --> neutral net charge
Explanation:
Electroplated jeweleries are in demand because firstly they are as shiny and attractive as real jeweleries, they are also light weighted and cost effective.
Answer:
A.
Explanation:
The paper clip allows elictricity to pass, unlike the eraser or paper
