Oxygen bleach powder can be a useful tool in household cleaning and laundry - find out all about this versatile product and how to use it here!Updated 18 September 2023 · Author By Cleanipedia Team Reading Time
Oxygen bleach is a type of non-chlorine bleach. Made up of hydrogen peroxide, sodium perborate and sodium carbonate, oxygen bleach also has stain-fighting capabilities, but you can use it for a wider range of clothing. This article was updated in conjunction with AI technology, then fact-chec...
Bleach can be really harmful to the skin and may cause eye irritation. Is drinking high-concentration bleach dangerous? Industrial bleaches are often made with high-concentrations of sodium hypochlorite, which can be very dangerous if ingested. The oxidation reaction can cause skin burns, nausea, ...
It would seem that an introduction to oxygen is unnecessary, for we deal with it and depend upon it every moment of our lives. Oxygen is to us the essential stuff of the air we breathe. We are aerobic animals who obtain energy by oxidizing foodstuffs. As such, we are wholly dependent ...
A. what B. which C. that D.it 相关知识点: 试题来源: 解析 3.C 【解析】考查定语从句的关系词。 句意:氧气是能助 燃的唯一气体吗?先行词为gas,指物,该空在从句中作 主语,不可省略,且先行词前有 the only 修饰,引导词只 能用 that 而不能用 which。 故选 C。 反馈 收藏 ...
解析 A核心短语/词汇:help sb./ sth. (to) do sth. 帮助某人/某物做某事句子译文:氧气是唯一的助燃气体吗? 本题考查定语从句。___helps fire burn 用来修饰之前的名词gas, 该从句的引导词在定语从句中做主语,不能省略,先行词有only 修饰时不能用which; what 不能引导定语从句,故选项A符合题意。反馈...
Neil In this programme we’ll be finding out all about blood – why humans have different blood types and whether blood is something more than just a way of pumping oxygen around your body. Sam And of course we’ll be learni...
Similarly, hydrogen and oxygen, which are both gaseous elements can combine to form water, which is a liquid compound, not a gas, at room temperature. The process by which such combinations and transformations of elements into compounds take place is called achemical reaction. ...
How is basic oxygen steelmaking performed? This common steelmaking process begins with pig iron. The pig iron is smelted in a blast furnace, after which it’s poured into a ladle. From there, it’s blasted with oxygen as a form of pretreatment. The next step of basic oxygen steelmaking ...
原句为“Is oxygen the only gas ___ helps fire burn?”,需填入定语从句的引导词。 1. **选项A(that)**:当先行词被“the only”修饰时,通常用“that”引导定语从句(不用“which”),且从句中缺少主语,因此“that”符合语法规则。 2. **选项B(/)**:若省略关系代词,句子结构不完整(缺少主语),错误。