What is the chemical composition of gunpowder?
What is the chemical composition of gunpowder?
Gunpowder consists of sulfur and charcoal (fuels), mixed with potassium nitrate (an oxidiser – a type of chemical which a fuel requires in order to burn). The basic mixture was, in fact, originally discovered by eighth century Chinese alchemists.
How is gunpowder created?
Gunpowder was invented by Chinese alchemists in the 9th century. Originally, it was made by mixing elemental sulfur, charcoal, and saltpeter (potassium nitrate). People who made gunpowder would sometimes add water, wine, or another liquid to reduce this hazard since a single spark could result in a smoky fire.
Is Gunpowder an element compound or mixture?
Gunpowder, which is used in a variety of explosives, is actually a homogeneous mixture of elements like sulfur, charcoal, and saltpeter (also known as potassium nitrate).
Is gunpowder a heterogeneous or homogeneous mixture?
Gunpowder is actually a homogeneous mixture consisting of 70% KNO3, 15% of charcoal and 10% of sulfer.
Is ice a homogeneous mixture?
Ice is a homogeneous mixture since particles are distributed uniformly within it. In air, all gases would have a uniform composition. Therefore, the air is an example of homogeneous mixture.
Is smoke a heterogeneous mixture?
A heterogeneous mixture is composed of components that are not uniform and have different properties. Smoke is a heterogeneous mixture as smoke does not have uniform composition throughout. Homogeneous mixtures can’t be filtered, but you can filter smoke out of the air, so it’s not homogeneous.
Is 70 isopropyl alcohol homogeneous or heterogeneous?
Answer: A 70% alcohol is a homogeneous mixture.
Is 70% isopropyl alcohol a mixture?
What is 70/30 IPA and The Best Uses? 70/30 IPA (Isopropyl Alcohol) is a low toxicity solvent made of a mix of 70% pure isopropyl alcohol and 30% water. This is generally the mixture used in first aid products such as rubbing alcohol.
Is 70% isopropyl alcohol a pure substance?
Rubbing alcohol is the common name for isopropanol (propan-2-ol) and it is a pure substance. That is why 70% rubbing alcohol is considered a mixture, and not a pure compound.
Is rubbing alcohol an element or a compound?
Matter
Question | Answer |
---|---|
Is ALCOHOL (rubbing alcohol) an element, compound, mixture, or none? (CH3OH) | Compound – made of more than one element and chemically combined |
Is SALT an element, compound, mixture, or none? (NaCl) | Compound – made of more than one element and chemically combined |
Is cotton a mixture?
The title says it all. It’s almost pure cellulose with traces of lignin, techically a mixture but can be treated as pure substance for most purposes. No, Earth, Fire, Air and Water are the four Elements.
Is rust an element or compound?
Rust is the common name for a very common compound, iron oxide. Iron oxide, the chemical Fe2O3, is common because iron combines very readily with oxygen — so readily, in fact, that pure iron is only rarely found in nature.
What is the chemical formula of Diamond?
C .
What is the chemical formula of rust?
It is estimated that about one-seventh of all iron production goes to replace the metal lost to corrosion. Rust is apparently a hydrated form of iron(III)oxide. The formula is approximately Fe2O3•32H2O, although the exact amount of water is variable.
Does Zinc rust in salt water?
The aluminum, bronze and iron parts in the saltwater undergo less corrosion. Zinc anodes are the preferred choice in metal alloys for saltwater applications that need a sacrificial anode, because the alloy is less resistant to the saltwater’s electrolytes.
Why does zinc not rust?
The zinc layer acts as a sacrificial metal for the steel. This means that the zinc layer will combine with the oxygen more readily than the iron in the steel will. This creates a zinc oxide layer that prevents the formation of iron oxide, thus eliminating the possibility of rust forming.
How long will Titanium last?
20 years