What is a chemical reaction and what are some examples? How do you know if a chemical reaction will occur? How do you write a chemical equation with no reaction? How does mass change during a chemical reaction? What happens to the reactants in a chemical reaction?
Is burning a candle a chemical reaction? We can determine the amount of air pollution from the toxic sulfur dioxide gas, SO_{2} produced in the smelting of zinc sulfide, ZnS using the equation below. 2ZnS + 3O_{2} \rightarrow 2ZnO + 2SO_{2} 505.0 g of ZnS is heated to a high...
根据第一段第一句“Chemistry is a science that looks at matter and how it changes.(化学是一门研究物质及其变化的科学。)”可知这篇文章的主题是化学,故选B。2. 题干:根据这篇文章,原子是什么?A.看不见的大颗粒。B.物质的微小颗粒。C.分子的一部分。D.一种化学反应。根据第二段第一句“In chemistry...
this will be CH4, O2, CO2 and H2O. In chemistry, to "yield" means that whatever is before turns into whatever comes after, so be sure that "yield" is roughly in the middle. That phrase will represent the actual chemical reaction, in this case the burning. So anything that you...
blasters use traditionaldynamiteor a similar explosive material. Dynamite is just absorbent stuffing soaked in a highly combustible chemical or mixture of chemicals. When the chemical is ignited, it burns quickly, producing a large volume of hot gas in a short amount of time. This gas expands ra...
Fire isn't matter at all. It's a visible, tangible side effect of matter changing form -- it's one part of a chemical reaction. We’ll look at how that reaction creates heat and light next. Contents What Is Fire? Fire Variables What Is Fire? What exactly are those orange flames?
The best solution is to neutralize the Skunk odor using the following formula to actually change the chemical structure of the compounds in skunk spray that make it smell so bad, and stick around for such a long time. It’s sciency-stuff, so we won’t get into it too deeply – and ...
How is 'X' obtained ? Give chemical equation. View Solution Ferrous sulphate decomposes with the evolution of a gas having a characteristic odour of burning sulphur. Write the chemical reaction involved and identify the type of reaction. View Solution Observe the following diagram and answer any...
Deuterium fusion, also called deuterium burning, is a nuclear fusion reaction that occurs in stars and some substellar objects, in which a deuterium nucleus and a proton combine to form a helium-3 nucleus. What is DEUTERIUM? What does DEUTERIUM mean? DEUTERIUM meaning, definition & explanation...
Why is burning a chemical reaction? How do redox reactions work? How do human activities affect the geosphere? How did the Great Oxygenation Event affect life? How do biological factors influence human behavior? How is slime a chemical reaction? Why should chemical reactions be represented? Why ...