I think the correct answer from the choices listed above is option B. The reactants calcium sulfide and sodium sulfate will react and form a precipitate which is calcium sulfate since it is only slightly soluble in aqueous solution. Hope this answers the question.
Explanation:
What's Dis Suppose To Mean ?
If they're different sizes and densities, you are able to separate the substances.
Answer:
D) Sulphur
Explanation:
Sulphur has the strongest electromagnetivity here
The answer is “the sustainability of the ecosystem” because if the ecosystem isn’t sustainable enough for many different organisms to live in it then the biological diversity of the ecosystem will decrease.