1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Misha Larkins [42]
3 years ago
8

A 100 g sample of substance A is composed of 57.1 g of oxygen and 42.9 g of carbon. Another 100 g sample of substance B is made

up of 72.7 g oxygen and 27.3 g carbon. What can be determined about substances A and B?
Chemistry
1 answer:
VikaD [51]3 years ago
7 0

Answer:

Explanation:

57.1 g of oxygen combines with 42.9 g of carbon

57.1/16 atoms of oxygen combines with 42.9 / 12 atoms of carbon

3.56 atoms of oxygen combines with 3.575 atoms of carbon

one atom of oxygen combines with one atom of carbon

A appears to be CO ( carbon monoxide gas )

2 )

72.7 g of oxygen combines with 27.3 g of carbon

72.7 / 16 atoms of oxygen combines with 27.3 / 12 atoms of carbon

4.54 atoms of oxygen combines with 2.275 atoms of carbon

2 atoms of oxygen combines with 1 atom of carbon

B appears to be CO₂ ( Carbon dioxide)

You might be interested in
**PLATO QUESTION, PLEASE ANSWER CORRECTLY, THANKS SO MUCH**
OLga [1]
None of the questions asked can be answered completely from the graph provided (GHG emissions: Direct, indirect and total Vs Year)

Reason:
1) Question A:<span>What caused a drop in GHG emissions around 2009?. This questions in pointing towards reason for drop of GHG emission around 2009. From the graph, it can be seen that there is a drop in GHG emission around 2009. However, information for reason for this drop is not available in graph.
2) Question B: </span>Did GHG emissions cause the melting of Arctic glaciers?. As mentioned earlier, the graph plotted provides information of GHG emissions: Vs Year. Information related to impact of GHG on environment is not available in graph. 
3) Question C: <span>How much methane was emitted by homes between 1990 and 2000?. Graph provides information of direct and indirect emission for GHG. However, it lacks information about emission from residential or industrial sources. 
4) </span>Question D: <span>Does industrial equipment release gases other than greenhouse gases?: Present study doesnot cover type of gases emitted from industrial equipment.
5) </span>Question E: <span>Which types of industries were included in the study?: Present graph has not specific information related to industries. </span>
6 0
3 years ago
Read 2 more answers
5.5 cm east + 3.5 cm west =
Firlakuza [10]
2 cm east is the answer because you go east 5.5 cm and then go back in a sense 3.5 so its basically 5.5-3.5 because its backwards while still facing eat
4 0
3 years ago
Which chloride is a coloured solid rtp<br>​
lianna [129]

Answer:

sodium chloride

hope that helped :)

7 0
2 years ago
Read 2 more answers
What is the Molar mass of Cu2So4
almond37 [142]

Answer: Copper(I) sulfate, also known as cuprous sulfate and dicopper sulfate, is the chemical compound with the chemical formula Cu2SO4 and a molar mass of 223.15 g mol−1. It is an unstable compound as copper(I) compounds are generally unstable and is more commonly found in the CuSO4 state. It is white in color at room temperature and is water-soluble. Due to the low-stability of the compound there are currently not many applications to date.

7 0
3 years ago
I have asked this already!!!!!
stellarik [79]

Answer:

01) Cu tting hair is a physical change. reason-1

02) Cooking can be either one, but I would choose chemical reason-3

03) Ice cream melting is a physical change reason-2

Explanation:

6 0
3 years ago
Other questions:
  • . A piece of chamber music for nine players is known as a
    9·1 answer
  • Which expression is equal to the number of grams (g) in 2.43 kilograms (kg)?
    14·2 answers
  • Formaldehyde, ch2o, is used as an embalming agent. draw the structure of ch2o including lone pairs.formaldehyde, ch2o, is used a
    14·1 answer
  • Review this balanced neutralization reaction: HBr + KOH KBr + H2O. Which substance is the base?
    7·1 answer
  • Which of these could be a physical change?
    7·2 answers
  • Print
    14·1 answer
  • I need help with the stuff highlighted in the blue
    13·2 answers
  • g To recover the copper from solution a small amount of zinc is placed into solution, producing copper metal and zinc ions in so
    5·1 answer
  • HELP!!as soon as possible ┐(‘~`;)┌​
    13·2 answers
  • How to convert butanoic acid to propanamide?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!