subject
English, 29.09.2020 14:01 AnastaziaOpfer3822

In 1827, John Walker, a druggist in a small English town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. The druggist had discovered the first friction-chemical match, the kind we use to-day. It is
called friction-chemical because it is made by mixing certain chemicals together and rubbing them. Although Walker's match did not
require the bottle of acid, nevertheless it was not a good one. It could be lighted only by hard rubbing, and it sputtered and threw fire in all
directions. In a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. The match
could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. It would ignite when
rubbed on any dry surface, and there was no longer any sputtering. This was the phosphorus match, the match with which we are so
familiar
According the bolded paragraph, what was the benefit of the new phosphorus match?
Olt burst into flame when rubbed on sandpaper.
O It was made by mixing chemicals.
Olt could be ignited on any dry surface
Olt threw fire in all directions

ansver
Answers: 1

Another question on English

question
English, 21.06.2019 20:30
Respond to the following prompts in your initial post: 1. explain if this essay is narrative or descriptive and provide reasoning to support your response. 2. describe what you believe the purpose of the essay is an support your answer with information from this week’s material. 3. now that you have identified the purpose of the essay l, explain why you believe the author did or did not achieve her intended purpose.
Answers: 3
question
English, 22.06.2019 00:30
Tell me what you guys think of this made it for class need opinions
Answers: 2
question
English, 22.06.2019 01:30
View a film and read a text-based representation of your hero, such as a modern graphic representation of your hero (comic book, graphic novel). compare how your character is represented in text and how your character is visually represented. next, you will compare how this information informs the idea of what it means to be a hero.
Answers: 2
question
English, 22.06.2019 02:00
[v]ast numbers of our people are compelled to seek their livelihood by begging, robbing, stealing, cheating, flattering, suborning, forswearing, forging . . which satirical element is most dominant in the passage above?
Answers: 3
You know the right answer?
In 1827, John Walker, a druggist in a small English town, tipped a splint with sulphur, chlorate of...
Questions
question
Mathematics, 17.11.2019 06:31
question
Chemistry, 17.11.2019 06:31
question
Mathematics, 17.11.2019 06:31
question
History, 17.11.2019 06:31
question
Social Studies, 17.11.2019 06:31
Questions on the website: 13722363