Homogeneous mixture has the same composition throughout.
Heterogeneous mixture varies in its composition
(Mixture is a combination of two or more substances in any proportions. The substances in a mixture do not combines chemically so they retain there physical properties.)
A mixture is a combination of two or more substances in any proportion. This is different from a compound, which consists of substances in fixed proportions. The substances in a mixture also do not combine chemically to form a new substance, as they do in a compound. Instead, they just intermingle and keep their original properties. The lemonade pictured above is a mixture because it doesn’t have fixed proportions of ingredients. It could have more or less lemon juice, for example, or more or less sugar, and it would still be lemonade.
Q: What are some other examples of mixtures?
A: Other examples of liquid mixtures include salt water and salad dressing. Air is a mixture of gases, mainly nitrogen and oxygen. The rock pictured in the Figure below is a solid mixture.
A rock is a mixture of smaller rocks and minerals
[Figure 2]
This rock is a mixture of smaller rocks and minerals.
Homogeneous or Heterogeneous?
The lemonade in the opening picture is an example of a homogeneous mixture. A homogeneous mixture has the same composition throughout. Another example of a homogeneous mixture is salt water. If you analyzed samples of ocean water in different places, you would find that the proportion of salt in each sample is the same: 3.5 percent.
The rock in Figure above is an example of a heterogeneous mixture. A heterogeneous mixture varies in its composition. The black nuggets, for example, are not distributed evenly throughout the rock.
Answers & Comments
Homogeneous mixture has the same composition throughout.
Heterogeneous mixture varies in its composition
(Mixture is a combination of two or more substances in any proportions. The substances in a mixture do not combines chemically so they retain there physical properties.)
What Is a Mixture?
A mixture is a combination of two or more substances in any proportion. This is different from a compound, which consists of substances in fixed proportions. The substances in a mixture also do not combine chemically to form a new substance, as they do in a compound. Instead, they just intermingle and keep their original properties. The lemonade pictured above is a mixture because it doesn’t have fixed proportions of ingredients. It could have more or less lemon juice, for example, or more or less sugar, and it would still be lemonade.
Q: What are some other examples of mixtures?
A: Other examples of liquid mixtures include salt water and salad dressing. Air is a mixture of gases, mainly nitrogen and oxygen. The rock pictured in the Figure below is a solid mixture.
A rock is a mixture of smaller rocks and minerals
[Figure 2]
This rock is a mixture of smaller rocks and minerals.
Homogeneous or Heterogeneous?
The lemonade in the opening picture is an example of a homogeneous mixture. A homogeneous mixture has the same composition throughout. Another example of a homogeneous mixture is salt water. If you analyzed samples of ocean water in different places, you would find that the proportion of salt in each sample is the same: 3.5 percent.
The rock in Figure above is an example of a heterogeneous mixture. A heterogeneous mixture varies in its composition. The black nuggets, for example, are not distributed evenly throughout the rock.
Explanation:
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