Applications of chemistry to reagents and reactions of everyday life. This tag should not be applied to questions which are just about simple chemistry but it is specific to questions about chemistry in an out-of-laboratory or commonplace context.

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5 chemical formulas that exist in nature apart from the common ones like oxygen, carbon dioxide, nirogen etc [on hold]

enter link description here ---------------------------please explain with the refrence to how to write the chemical formulas with the help of valencies
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2answers
35 views

Why do sealed plastic bottles of pop collapse as the contents get old?

A number of bottles of pop (two varieties) in unopened plastic bottles have sat for a few years in a room-temperature environment. All of the bottles have now collapsed a certain amount (all to about ...
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28 views

What type of subject chemistry is? [on hold]

What type of subject chemistry is? A. Experimental B. Theoritical C. Both What is the answer of this MCQ? And please give a brief explanation.
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0answers
17 views

How many kg is 13 moles of o2? [on hold]

How many kilograms are in 13 moles of oxygen.
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1answer
35 views

How does a fire start?

I know that fire in a few words is the exothermic reaction of a fuel with an oxidizing agent, but I can't fully understand what exactly happens to piece of wood when it is ignited. How do molecules ...
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0answers
15 views

What mass of KCl is produced when 0.250 moles of KCl3 are decomposed? [closed]

I already tried working out this problem. I was struggling a bit because I couldn't quite get the math done correctly. Here are the options below: A. 1.8 B. 0.80 C. 40.3 D. 57.6
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0answers
7 views

Dilution of a know solution [closed]

Would original 1.00M NaOH or diluted 0.200 M NaOH react more quickly with copper metal and why?
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0answers
11 views

Are foam insoles recyclable? [closed]

I got some trim to fit foam insoles and I'm curious if the scraps can be recycled or if they have to go to a landfill.
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0answers
14 views

Final Temperature [closed]

In a past experiment you found that 5 g of NH4Cl had a q value of 1407.32 J. What would be the finial temperature of 75 ml of water that was at room temp (23.6°C)? specific heat of water 4.184 ...
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1answer
29 views

Ions and bonding

I am currently learning about ions and I am a bit confused about the bonding part. I understand that if an atom has an 'unstable' amount of electrons (like 2 electrons, then 8, then 4) that it can ...
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0answers
25 views

Powdering aluminum chemically?

I need a fine aluminum powder for many reactions/experiments. Could I dissolve the metal in an acid and then drop it out of solution using a base, or vice-versa? What would be the best ...
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1answer
26 views

Diffusion Phenomena : Why does diffusion occur?

Why do things diffuse that is why do they go from a place of higher concentration to a place of lower concentration?
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0answers
63 views

Copper + oxygen not = copper oxide

I tried to create copper hydroxide. Instead of using what available on the youtube. I use the water from my copper coating which has 3 ppm. Since I have oxygen tank at home, I infuse them into the ...
0
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1answer
27 views

What would make tracing paper clear?

This isn't much of a "chemistry" question, but this is the only category where I can get answer based on science. I already tried soaking it in cooking oil, which did not work (it only made the ...
3
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1answer
29 views

Removing aluminum “corrosion?”

I have some aluminum alloy, possibly 6063 or 7050 (no clue really) which has corroded. The finish might be silver-anodized but I doubt it due to the high polish, could be urethane. The item is a ...
0
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2answers
23 views

How semi-permanent hair dye stays in place?

Semi-permanent hair dye washes off after several months. What mechanism(s) keep the dye in the hair? (I assume it's not primary chemical bonds, otherwise it would be permanent)
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0answers
13 views

Sn-1 and Sn-2 positions

When reading about phospholipids, it talks about sn-1 and sn-2 positions. What does this refer to? (Sn?)
8
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1answer
96 views

Why is charcoal useful as a fuel compared to wood? Don't we lose energy by making it?

Charcoal is produced by partially burning wood. However, as the wood is burned, some of its energy is lost. Why is it that charcoal is still preferred as a fuel instead of wood in many cases? Doesn't ...
0
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0answers
51 views

Crusty white armpit stain that can't be removed by washing

Some of my t-shirts (the ones that are 100% cotton) started developing this strange armpit stain: it makes the fabric feel brittle and crusty around it; it can't be washed off with water and ...
3
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0answers
41 views

Sand Under Pool Turned Gold in Color

I'm removing an above-ground chlorine pool installed years ago by a previous owner of my house. Looking underneath the pool, I found that the sand on which it's resting is a gold/bronze color with a ...
5
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1answer
1k views

How could we figure out the recipe of Coca Cola? [duplicate]

I know that the ingredients and the manufacturing process are both important, as discussed in this question. What would be a modern approach to figuring out the ingredients? The ingredients listed ...
3
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0answers
20 views

Water conditioning with a descaler?

Products known as “descalers” are said by the manufacturers (such as this one) to use electrical impulses to transform calcium bicarbonate (which builds up in pipes and water-using appliances, causing ...
10
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1answer
209 views

Are modern newspaper inks a health risk?

It's very common in India to see newspapers being used to absorb oils from oily snacks, or simply for temporary food packaging. Some articles say that covering food items in newspaper is a health ...
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0answers
19 views

Krown Rust Protection/RustCheck - Soluble in?

This is a very practical question in nature and not meant to need a tremendously technical explanation. As a little background, I work as a auto detailer and have yet to find something to easily ...
8
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1answer
93 views

What causes metallic objects to ring?

If I use a iron rod to hit a 3" × 12" iron plate there is the distinct sound of a metallic ring. What is the cause of this distinct sound? Is it the crystal structure of iron or that iron is a ...
22
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2answers
5k views

Why isn't ethane used for cooking?

We commonly use methane and propane for cooking (and home heating), but not ethane. I would expect ethane to be suitable for this, being in between the two, but I've never heard of anyone using it for ...
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0answers
32 views

What is the chemical, which he use for covering the “wooden-comb”?

Many days ago, I have seen this video on YouTube, at here: https://www.youtube.com/watch?v=oRV73gKShto. In this video, he dropped the "wooden-comb" into a bowl of chemical, for covering it. It seems ...
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1answer
54 views

Anodized Aluminum…danger? [closed]

I recently got an iMac, but have been feeling anxious about using it as the keyboard is made of aluminum as is also the actual computer. the keyboard and computer are made from Anodized aluminum, ...
13
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2answers
4k views

Is poison still poisonous after its 'expiration date'?

As we all know that, Any poison is nothing but a chemical compound. And as discussed in the question: Chemicals-do-have-an-expiry-date! So, my question is: Is poison still poisonous after its ...
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1answer
46 views

Using baking powder to make baked food crispy

The recipe I use for chicken wings achieves a fried texture by dusting the wings with baking powder and then baking at 220°C (425°F). The chicken is also dusted with salt and other seasonings, ...
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0answers
41 views

Can we make glass by heating Martian Soil

I was puzzled by a very interesting question. Can we heat up Martian sand and produce glass just the way we do here on Earth. (The Basic way) For info, Martian sand consists of the following - ...
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0answers
22 views

To what extent are caramelization products sugars?

Suppose that we are caramelizing sucrose by applying heat. We get what cooks know as "caramel". Wikipedia lists several reaction types happening during caramelization. Obviously, some of them result ...
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0answers
23 views

Using Hydrogen Peroxide to clean toilet

I want to use lysol hydrogen peroxide multipurpose cleaner for cleaning my toilet. Is this a dangerous course of action?
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0answers
8 views

How can I filter amylose and amylopectin out of solution?

So I have a solution of propylene glycol and I want to filter out the amylose and amylopectin with the least actual chemical change needed. The smallest diameter of the amylopectin molecules (19 ...
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1answer
63 views

How does salt help with −30 °C cold ice?

I know that ice gets colder when salt is added. But how big is the effect if it is already −30 °C? Can it cool it down more or does it just work with −1 °C cold ice? Another question: If I have a ...
2
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1answer
22 views

Is micelle formation in a soap solution a chemical reaction?

I know that soap molecules have a hydrophilic end and a hydrophobic end which attract to water and oil respectively. However, does a chemical reaction take place?
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1answer
31 views

Common ingredient between two disinfectants?

I find one of the most powerful associations to be odour, placing me very clearly in a time and place. Recently we were using Dettol in the house and I was reminded very clearly of a another ...
0
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1answer
101 views

Does changing the volume of a reactant affect the rate of reaction? Does changing the volume of HCl affect the rate of a Mg & HCl reaction?

I'm doing a experiment in which I'm testing the affect of the concentration of a reactant on the rate of reaction. The reaction is between Magnesium and Hydrochloric Acid and so I'm changing the ...
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0answers
25 views

Is qualitative analysis can be used to determine chemical constituent of an insoluble solid?

I would like to use qualitative to test the chemical composition of a wooden substance. Can qualitative analysis use to test substance like solid? Since it is not soluble, therefore is it suitable to ...
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1answer
77 views

Supermarket HDPE plastic bags safety

Supermarket plastic bags are made of high density polyethylene, and I am interested in the decomposition products at high temperature: what type of compounds are released and how dangerous are they? I ...
0
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0answers
64 views

What is the suitable method to determine the chemical constituent for substance like chopsticks?

I would like to carry out an experiment to determine the chemical constituent of chopsticks since I know that chopsticks have effects on health and environment. I not too clear about the method to ...
4
votes
2answers
61 views

Safe endothermic reaction that gets below freezing?

I have a project/idea I am working on but I am only 14 years old and I need some help. I'm looking for an endothermic reaction that gets below freezing, but the chemicals before the reaction and ...
0
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1answer
77 views

Minerals in water solidify when heated?

Is it possible for minerals in drinking water to solidify when high temperatures are applied? The minerals in mind are: iron, copper, aluminum, magnesium. Background: I have small, brittle, darkish ...
0
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1answer
30 views

can electrolyzed water that results in OH− anions accumulating at the cathode be used to disinfect the water?

The Water system involves the electrolysis of tap water to separate the constituent elements. There is no addition of other chemicals such as salt. The electrolyzed water results in H+ cations ...
14
votes
1answer
1k views

Counterintuitive Reaction of Aluminium On Steel Balls

There is a certain video which I just watched about 2 large cast iron balls. If the balls are struck together, no reaction happens, but if one is covered in aluminium foil and then struck, a large ...
2
votes
0answers
15 views

Reagent for identification of Water Hemlock (Cicuta) or Cicutoxin?

Chemical reagents are used for macroscopic identification of some wild mushrooms. Are there similar reagents used to identify Water Hemlock (or potentially cicutoxin) as a supplement to visual ...
1
vote
1answer
34 views

Toxic levels of baking soda

What is the amount of baking soda that would be considered toxic for skin? I ask because there is a lot of misinformation online about using baking soda as a "natural" underarm deodorant, and how it ...
1
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0answers
40 views

Is there any process to determine what elements a physical sample is made from?

I'm wondering if anyone knows of laboratory services that can analyze a sediment sample to tell what it's made of. Background: our drinking water has small black flakes appearing, and our city water ...
0
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0answers
13 views

Aluminium free deodorants

Are there any chemicals without aluminium which can be used as a deodorant? Alum is the commonly used deodarant ,but is it harmful as aluminium cholorohydrate and zirconium?
0
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1answer
46 views

Formation of water vapour during combustion

When we burn fuel, water vapour is produced because hydrogen is burnt as well. But since the vapour is in gaseous state already, it shouldn't steal any heat from fuel gases, should it?