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1 vote
1 answer
8k views

Relation between acidity and reactivity?

Up till high school, I've been taught that reactivity and acidity of a substance in a relation that if a substance is acidic and if it's acidity is higher (comparatively to some other substance) than ...
mathnoob123's user avatar
0 votes
1 answer
11k views

What can be added to hydrochloric acid to make a gel or paste?

I have a bottle of brick cleaner containing 18-20% hydrochloric acid. What can I add to it to make a gel or paste without unwanted reactions? The application is still just cleaning bricks as the ...
Paul George's user avatar
3 votes
0 answers
160 views

Constructing a reactivity series, magnesium more reactive than sodium?

I reacted about $0.25 \,\mathrm{g}$ of magnesium, sodium and lithium in $20 \,\mathrm{ml}$ of $2 \,\mathrm{M} \,\ce{HCl}$ at room temperature. This was all done in a $100 \,\mathrm{mL}$ beaker. I ...
Rum's user avatar
  • 31
2 votes
1 answer
9k views

Why is Nitric Acid more reactive and caustic than Sulfuric or Hydrochloric?

Nitric acid reacts much more vigorously with living tissue and is a obviously more immediately hazardous on contact than sulfuric or hydrochloric. What is the reason for this? Is it due to the ...
Joseph Hirsch's user avatar
0 votes
1 answer
5k views

Is calcium hydroxide or potassium hydroxide more efficient at removing carbon dioxide?

In biology, we commonly use $\ce{KOH}$ in respirometers to remove carbon dioxide. A common test in chemistry to detect the presence of carbon dioxide is to bubble it through limewater, turning it ...
lightweaver's user avatar
  • 1,529
2 votes
1 answer
247 views

Why does only one reaction occur when so many are possible?

Why does only one reaction take place, although so many would be possible? I'm more of a physics and math guy, so simply "accepting" it without a proper explanation is kind of hard for me. For example:...
Shahe Ansar's user avatar
1 vote
1 answer
6k views

Why do displacement reactions occur?

Suppose we have a compound, say copper sulfate. I know that sulfate is a poly-atomic ion, having valency 2. And, in this case, copper also has valency 2. So, to fullfill their 'octet' requirements, ...
codetalker's user avatar
0 votes
0 answers
67 views

what makes an acid a strong acid or weak acid? [duplicate]

When my teacher referenced nitric acid as a strong acid, I thought it was strong because it donates more than one H+ per molecule, but then I saw the equation is $\ce{HNO_3}$ and it only donates one. ...
Ryan's user avatar
  • 1,167
6 votes
3 answers
3k views

Can aluminum and hydrochloric acid be used to generate hydrogen gas?

I am looking to produce hydrogen gas in a small amount with supplies I currently have. Most of the methods I have seen involve reacting zinc or magnesium with $\ce{HCl}$ to obtain the gas, but I do ...
Markovian8261's user avatar
4 votes
3 answers
15k views

What is the quickest way to dissolve steel?

What is the quickest way to dissolve a large chunk of steel? I mean a very quick reaction, assuming that the interaction occurs in a sealed or semi-sealed environment? Reaction times of the order of a ...
Adrian's user avatar
  • 41
12 votes
2 answers
23k views

Why is the iodide anion a good nucleophile but a poor base?

The $\mathrm{pK_{aH}}$ of $\ce I^-$ is very low which indicated that it is not favourable for it to bond with a proton. However, why would it be likely to bond with any other atom (mostly carbon when ...
RobChem's user avatar
  • 9,802
22 votes
4 answers
8k views

Why do Organolithium or Grignard reagents act as nucleophiles and not as bases with aldehydes and ketones

I've read entire Chapter 14: Organometallic Compounds of Francis Carey's "Organic Chemistry" but I still didn't get an answer to my question. Quote from the book: Because of their basicity ...
claws's user avatar
  • 963

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