Which Groups Contain an Element, Compound, and Mixture?

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Discussion Overview

The discussion revolves around identifying groups of substances that contain one element, one compound, and one mixture. Participants explore various combinations of substances and clarify the classifications of specific materials, such as alloys and ionic compounds.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants propose that groups B and D contain the required elements, compounds, and mixtures.
  • Others argue that sodium chloride is an ionic compound, not a mixture, and question the classification of steel and bronze as compounds or mixtures.
  • A participant suggests that A and D could be correct if bronze is considered a compound.
  • There is confusion regarding the classification of alloys, with some participants stating that they are mixtures rather than compounds.
  • Several participants express uncertainty about the correct combinations and classifications, leading to multiple interpretations of the groups.

Areas of Agreement / Disagreement

Participants generally disagree on the classifications of certain substances, particularly regarding alloys and ionic compounds. No consensus is reached on which two groups correctly contain one element, one compound, and one mixture.

Contextual Notes

There are unresolved questions about the definitions of mixtures and compounds, particularly concerning alloys like steel and bronze, which some participants classify differently.

Who May Find This Useful

Individuals interested in chemistry classifications, particularly students or learners exploring the distinctions between elements, compounds, and mixtures.

topsyturvy
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Which 2 groups of substances below contain 1 element, 1 compound and 1 mixture? pick 2 groups.

A.) Gold, sodium chloride, steel
B.) oxygen, iodine, air
C.) methane, iron(III)chloride, sea-water
D.) Helium, carbon(IV) oxide, mixed dessert
E.) Bronze, stainless steel, nitrogen(IV)oxide

i pick B and D. can sombody correct me?
what is STEEL under? mixture? :confused:

thanks lotsa.:smile:
 
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topsyturvy said:
Which 2 groups of substances below contain 1 element, 1 compound and 1 mixture? pick 2 groups.

A.) Gold, sodium chloride, steel
B.) oxygen, iodine, air
C.) methane, iron(III)chloride, sea-water
D.) Helium, carbon(IV) oxide, mixed dessert
E.) Bronze, stainless steel, nitrogen(IV)oxide

i pick B and D. can sombody correct me?
what is STEEL under? mixture? :confused:

thanks lotsa.:smile:
You may want to think again, B has two elements and one mixture. D is correct.
 
Last edited:
how about sodium chloride?

is sodium chloride a mixture?
bronze is also a compound right?

then my ans should be A and D. is that correct? :smile:
 
topsyturvy said:
is sodium chloride a mixture?


:eek: :eek: :eek: Sodium chloride is an ionic...
 
sodium chloride is an ionic compound.
stainless steel is alloy so it's a compound?
how about Bronze? nitrogen oxide is a compound.
 
topsyturvy said:
sodium chloride is an ionic compound.
Yup.
stainless steel is alloy so it's a compound?
Yup
how about Bronze?
Bronze is an alloy, and thus is a compound.
nitrogen oxide is a compound.
Yup
 
ok. thanks. but to pick out 2 groups which contain 1 element, 1 compound and 1 mixture. so i should pick D and which one?
A.) gold, sodium chloride, steel. ( there's only one element. no mixture.)
B.) oxygen,iodine , air ( 2 elements. 1 mixture.)
C.) methane, iron(III)chloride, sea-water. (there's 2 mixture. 1 compound.)
E.) bronze, stainless steel, nitrogen(IV)oxide (3 compounds.)

?
 
topsyturvy said:
ok. thanks. but to pick out 2 groups which contain 1 element, 1 compound and 1 mixture. so i should pick D and which one?
A.) gold, sodium chloride, steel. ( there's only one element. no mixture.)
B.) oxygen,iodine , air ( 2 elements. 1 mixture.)
C.) methane, iron(III)chloride, sea-water. (there's 2 mixture. 1 compound.)
E.) bronze, stainless steel, nitrogen(IV)oxide (3 compounds.)

?
One of them is a compound.
 
methane and sodium chloride both are compound.
 
  • #10
My apologies, after further research it appears that alloys are mixtures not compounds as they don't have a definite make up.
 
  • #11
i see. okok. so steel, stainless steel and bronze are all mixtures?
so A and D is the answer.?
 
  • #12
topsyturvy said:
i see. okok. so steel, stainless steel and bronze are all mixtures?
so A and D is the answer.?
Yes, I would agree with you there, again apologies for the confusion, its a while since I have done anything like this :blushing:
 
  • #13
it's okay. thanks lotsa. :biggrin:
 

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