Answer:
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Answer:
in prism
it's from the rectangular reflecting surface
<span>One atom of silicon can properly be combined in a compound with two atoms of oxygen.</span>
Lanthanide belongs to period 6, and actinides belongs to period 7
Prepare a 1% copper sulfate solution. To make this solution, weigh 1 gram of copper sulfate (CuSO4 ·5H2O), dissolve in a small amount of distilled water in a 100 ml volumetric flask and bring to volume. Label this as 1% copper sulfate solution.