If water is being split to form two new substances, is it a change of state?

Answer 1

No it's a chemical reaction, a decomposition reaction.

#H_2O(l) rarr H_2(g) + 1/2O_2(g)#

By definition, this process is a chemical reaction because it involves the breaking of strong chemical bonds and the formation of new substances.

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Answer 2

Natalie Anton

No, splitting water to form two new substances is not a change of state. It is a chemical change, specifically a decomposition reaction, where water (H2O) is broken down into hydrogen gas (H2) and oxygen gas (O2).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.