Concept explainers
(a)
Interpretation:
The stainless steel has to be identified as homogenous or heterogeneous mixture.
Concept Introduction:
Mixture:
A mixture always contains two or more substances that can be present in varying amounts. The components of a mixture do not lose their identities and may be separated by physical means. There are two types of mixture,
- Homogeneous mixture
- Heterogeneous mixture
Homogeneous mixture:
Homogenous mixture consist of a single phase be it liquid, gas, or solid the chemical composition is the same for any sample of the mixture.
Heterogeneous mixture:
Heterogeneous mixture consist of different phase are not uniform they will not have an identical composition.
(b)
Interpretation:
The motor oil has to be identified as homogenous or heterogeneous mixture.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
Soil has to be identified as homogenous or heterogeneous mixture.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
A tree has to be identified as homogenous or heterogeneous mixture.
Concept Introduction:
Refer to part (a).
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EBK FOUNDATIONS OF COLLEGE CHEMISTRY
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- Identify each process as a physical change or a chemical change. Give the basis for your answer. (a) making of ice cubes (b) burning of LPG (c) tarnishing of silver jewelry (d) melting of ice cubes (e) baking of breadarrow_forwardClassify each property as physical or chemical. (a) the tendency of copper to turn green when exposed to air(b) the tendency of automobile paint to dull over time(c) the tendency of gasoline to evaporate quickly when spilled(d) the low mass (for a given volume) of aluminum relative to other metalsarrow_forwardDetermine whether each molecular diagram represents a pure substance or a mixture. If it represents a pure substance, classify the substance as an element or a compound. If it represents a mixture, classify the mixture as homogeneous or heterogeneous.arrow_forward
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