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[1NA] Chapter 18: Chemical Changes

August 21, 2019August 1, 2018 by rexyme

You need to know how to tell if a change is a chemical change or just physical change. Refer to TB page 171. We need to know how to produce and test for presence of two gases – hydrogen and carbon dioxide. How to tell if a solution is an acid or alkali? You need … Read more

Categories Lower Secondary Science Tags acid, alkali, base, carbon dioxide gas test, hydrogen gas test, neutralisation

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