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Nezavi [6.7K]
1 year ago
9

before we begin, let's first establish an understanding of basic terminology. it may be harder than you think to clearly define

what is a chemical versus a chemical reaction. to help us better differentiate between closely related terms, review the words listed here. sort each of the words into the three categories: contains chemicals, chemical reaction, or neither.
Chemistry
1 answer:
Dennis_Churaev [7]1 year ago
8 0

Contains chemical : vitamin  b12, oranges, grapes, protein

chemical reaction is : neutralization, combustion, bleaching, photosyntheis

Neither : sunlight, rainbow, heat.

  • chemical is a substance
  • Chemical reaction is a rocess during which chemical bonds between atoms are broken and new ones are formed. Producing one or more different substances.
  • reactant is a starting materials in a chemical reaction
  • product is new substances that are formed in a chemical reaction
  • chemical equation is representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
  • combustion reaction is a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light

To know more about Chemical reaction     visit : brainly.com/question/3461108

#SPJ4

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compound 1 contains 15.0g of hydrogen and 120.0g oxygen. What is the percent compound of each element?
allsm [11]

Note down the formula below

\boxed{\sf Mass\%\;of\; element=\dfrac{Mass\:of\:the\: element}{Mass\;of\:the\: compound}\times 100}

Mass of the compound

\\ \sf\longmapsto 15+120=135g

Mass % of Hydrogen:-

\\ \sf\longmapsto \dfrac{15}{135}\times 100

\\ \sf\longmapsto \dfrac{1}{9}\times 100

\\ \sf\longmapsto 11.1\%

Mass % of Oxygen:-

\\ \sf\longmapsto \dfrac{120}{135}\times 100

\\ \sf\longmapsto \dfrac{8}{9}\times 100

\\ \sf\longmapsto 88.9\%

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The order of components in a typical flame atomic absorption spectrometer is hollow cathode lamp--flame--monochromator--detector

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