Does thermal decomposition of metal oxides always produces oxygen?

For question ii, it asks to state a reaction showing $\ce{H2SO4}$ acid acting as an acid. What does it mean acting as an acid? Donating a proton? Very confused as to what to look for. The answer is reaction 1. because it is an acid + metal oxide? But reaction 4. shows a metal and an acid -...

This probably is (too) huge a question, just like Is there a general way to predict products of a chemical reaction. However, it is still a valid question to ask, given that its sister (or mother) field, Physics, which I am much more acquainted with, is progressing towards the direction of a unif...

I looked up the word oxidize and one of the definitions is to make it an oxide which is what happens when iron gets rusty(even though there is also iron hydroxide in rust). Another was to coat with an oxide. Now how is coating with an oxide oxidation? Does it catalyze the oxidation by making it...

Will be there any positive reaction with Lugol's Solution: Starch with $\ce{HCl}$ on 100 °C? Starch with $\ce{HCl}$ on 37 °C? Starch with $\ce{H2O}$ on 100 °C? Starch with $\ce{H2O}$ on 37 °C? starch with Amylase from saliva on 100 °C? Starch with Amylase from saliva on 37 °C? Is the pH neutr...

EDIT: actually, wouldn't carbon dioxide be non-polar and therefore not have any partial charges? The molecule is linear and symmetrical. It should be non-polar. Therefore, I ask, how does carbon act as an electrophile if it has no partial charge? EDIT 2 (Answer): Okay, I got it. I have to look ...

I was a reading a book that a senior gave me, it said that redox is a type of reaction in which both reduction and oxidation take place. I know about oxidation but not reduction. After googling reduction reaction I found it's simply just the opposite. But then how can a reduction and oxidation ta...

There are constantly new features added to cellphones over the years, but it seems like batteries are not getting any better. Why is that?

I'm wondering if any reaction pathway exists (not involving enzymes) to do the following in aqueous solvent at temperatures < ~100°C: To clarify, it's important however that the reaction is concerted, and that the W - X and Y - Z bonds are not broken until both the W-Y and X-Z bonds are forme...

Please consider the Olefin Cross Metathesis (CM) reaction shown on the upper-right-hand side of pg. 2 here: https://www.chem.umn.edu/groups/harned/classes/8322/lectures/15Olefin_Metathesis.pdf What are the constraints on the R1/R2/R3/R4 groups? Can all of these Ri groups be, for example, polyal...

I made an electrolyzer which is powered by a car battery and it is supposed to make oxygen and hydrogen that will be used in car engine instead of air. I was testing it to see how much gas it produces so I used a balloon and after about 2mins there was an explosion with a laud sound and my contai...

For question ii, it asks to state a reaction showing $\ce{H2SO4}$ acid acting as an acid. What does it mean acting as an acid? Donating a proton? Very confused as to what to look for. The answer is reaction 1. because it is an acid + metal oxide? But reaction 4. shows a metal and an acid -...

I need a little help as a non-chemist. I would like to inject (under pressure or vacuum) metered $\ce{H2O2}$ into a compressed air stream, but I am under the impression this mixing causes a rapid (near instantaneous) decomposition of the $\ce{H2O2}$ into $\ce{H2O}$ and $\ce{O2}$. Is there a ...

My teacher stated that allylic carbocations are comparable in stability to tertiary carbocations. $\def\SN#1{\mathrm{S_N}#1}$ With this in mind I am confused why this MIT practice test states that these two molecules are only expected to undergo $\SN 2$ reactions: An $\SN 1$ reaction on th...

How to add a methyl group and an ethyl group to an alkyne with 2 terminal hydrogens separately?

How is it possible for m-cresol to exist? The $\ce{-OH}$ group is a ring activating group, and hence should be o-, p- directing.

In a balanced chemical equation are the molecules or the coefficients equal? When the equation $\ce{\_~Al + \_~Br2 -> \_~AlBr3}$ is balanced, the coefficient for $\ce{Al}$ is?

A question came to my mind. Is the rate function of an elementary reaction influenced by the other steps of the mechanism? I wonder whether the shape (not the values) of the function $r(c)$ belonging to the given elementary reaction changes or not as a step of an other mechanism? Thank you for t...