Revision work for chemistry Grade-8 First term 2021.
Revision work for chemistry Grade-8 First term 2021. Chose the best. What type of reactions can able to change products back to the their original form? Reversible reactions Irreversible reactions What is meant by the term Hydration in Chemistry? removing water from a substance adding water to a substance adding oxygen to a substance adding Hydrogen to a substance What is meant by the term Dehydration in Chemistry? adding Water to a substance removing water from a substance adding oxygen to a substance adding Nitrogen to a substance Which is the correct symbol to show a reversible reaction? = → ⇌ > What is the color and shape of Hydrated Copper Sulfate ? White powder blue powder blue crystals white crystals What is the color and structure of anhydrous copper sulfate? white powder black crystlas blue crystals red powder Dehydration is a ................................... process . endothermic exothermic What term is use