Fire is a chemical reaction involving ___. A、heat B、fuel C、air D、all the above 点击查看答案进入小程序搜题 你可能喜欢 对于abstract类,不能创建该类的对象。() A.正确B.错误 点击查看答案进入小程序搜题 喷射状呕吐提示可能有: A. 幽门梗阻 B. 颅内压增高 C. 食物中毒 D. 胃潴留 E...
Fire is a rapid chemical reaction known as oxidation. 火是一种快速的氧化化学反应。 Inside a fire, oxygen molecules break bigger molecules apart into carbon dioxide and water vapor. 在火中,氧分子将更大的分子氧化成二氧化碳和水蒸汽,火中的所有光和热都来自于含碳的大分子同氧气的结合。 All the...
Fire is a chemical reaction that releases light and heat.(Image credit: Candle image viaShutterstock) Prometheus stole it from the gods and bequeathed it to humans. Aristotle defined it as one of the four essential elements. Since its earliest known controlled use 1,420,000 years ago, fire ...
It is a chemical reaction (反应) of two or more things to form a new one.It means very, very hot.It's on the earth. They were about 7000 years ago on the earth. So what happened to them is Although it's still a mystery, there are many ideas go out to the question, let's ...
Fire is a chemical reaction that releases heat and light. It is a process of combustion that involves a fuel source, oxygen, and heat. When these three elements come together, they create a flame that can quickly spread and cause damage to surroundings. 火是一种化学反应,释放热量和光线。它...
For the most part, fire is a mixture of hot gases. Flames are the result of achemical reaction, primarily between oxygen in the air and a fuel, such as wood or propane. In addition to other products, the reaction producescarbon dioxide, steam, light, andheat. If the flame is hot enou...
So, if fire isn’t a solid, liquid, gas, or a plasma, what does that leave? It turns out fire isn’t actually matter at all. Instead, it’s our sensory experience of a chemical reaction called combustion. In a way, fire...
oxygen (O), nonmetallicchemical elementof Group 16 (VIa, or theoxygen group) of theperiodic table. Oxygen is a colourless, odourless, tastelessgasessential to living organisms, being taken up by animals, which convert it tocarbondioxide; plants, in turn, utilizecarbon dioxideas a source of ...
packs also are mainly built into the underbodies or frames of the vehicles, a spot that can be difficult for first responders to reach. And even if they could easily access the cells, the “fire” is actually a chemical reaction andfar more difficult to handle than a traditional gasoline ...
Fire Risk and Control Fire is a chemical reaction that requires three elements to be present for the reaction to take place and continue. The three elements are: Heat, or an ignition source Fuel Oxygen These three elements typically a... M Maher 被引量: 0发表: 2021年 Discussion on "Fire...