What reaction can occur, if any, when the following experiments are carried out under standard-state conditions? (c) Chlorine gas is bubbled through aqueous H2C2O4.

Video transcript

Hello, everyone. Today, we have the falling problem identify the type of reaction occurring occurring. Given that this is carried out in standard conditions, sodium hydride decomposes into sodium metal and hydrogen gas. So first, we have to write out what this would look like. We have our sodium hydride as follows in the solid form. It's going to decompose, meaning that it is the only reactant into our sodium metal, which is a solid and hydrogen gas. So we know that this cannot be a neutralization reaction because that involves in acid and a base reacting to form a salt and water, which we do not have happening. We know this is not a combustion reaction because we are not forming water and carbon dioxide, which is indicative of combustion. And we know this is not a single replacement because this is simply a decomposition reaction. So the answer would be redox reaction, but let's see why. So we have sodium and we have hydrogen and we're gonna calculate their oxidation states or oxidation numbers. So sodium is a group one element. So it's gonna have an oxidation number of positive one. And in this unusual case, hydrogen would have an oxidation number of positive one because it is a group one element as well. However, this is the one exception where it is not and it instead has a minus one charge. So we said our sodium has a positive one and hydrogen has a negative one. And if we look on the right, whenever a species is by itself or mono atomic, it has an oxidation number or state of zero. So we have a change in our oxidation states, meaning that this is indicative of a redox reaction. And with that, we've answered the question overall, I hope this helped. And until next time.