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What is the term for matter having a definite composition but variable properties?
heterogeneous mixture
What is the term for matter having indefinite composition and variable properties?
The term for matter having indefinite composition and variable properties is a mixture. Mixtures can be homogeneous (uniform composition) or heterogeneous (non-uniform composition).
What are the properties of metailliods?
Metalloids have properties that are intermediate between metals and nonmetals. They typically have characteristics of both, such as being semiconductors, having varying electrical conductivity, and exhibiting a mix of metallic and non-metallic properties. Metalloids are also often used in electronic and semiconductor industries due to their unique properties.
How do you determine whether a system is a subs or homogeneous mixt?
A mixture is homogeneous if its composition and properties are uniform throughout. A substance is a subset of mixtures, characterized by having uniform composition only. To determine if a system is a mixture or a substance, you would need to analyze its physical and chemical properties for uniformity.
What are the three properties for Metalloids?
Metalloids are elements that have properties intermediate between metals and nonmetals. They typically have characteristics of both metals and nonmetals, such as being semi-conductive, having varying degrees of metallic luster, and being brittle in solid form. Their properties make them useful in applications where properties of both metals and nonmetals are desired.
Matter that has the same composition and properties throughtout?
A substance is matter that has a uniform and consistent composition, meaning it contains the same types and proportions of atoms or molecules throughout. This results in substances having characteristic properties that do not vary within the sample.
Is samarium a metal or a metalloid?
Samarium is a metal. It is a rare earth element with properties characteristic of metals, such as being shiny, malleable, and having good electrical conductivity.
Why do seismologists conclude that the Earth must be composed of distinct shells having varying properties?
Seismologists conclude that the Earth must be composed of distinct shells with varying properties based on the behavior of seismic waves that travel through the Earth. By analyzing the speed, direction, and intensity of these waves, seismologists can infer the different layers of the Earth and their properties, such as density and composition. This information helps us understand the internal structure of the Earth and how it influences geological processes.
Pure substance vs mixture?
A pure substance is something like just water (H2O). A homogeneous mixture is a solution with multiple compounds. These mostly contain water, but not always. An example of a homogeneous mixture is H2O+NaCl or NaCl (aq).
What is a type of element that has some of the properties of metals and non metals?
Metalloids are elements that have properties of both metals and nonmetals. They typically have characteristics of both categories, such as being semi-conductive and having varying reactivity. Examples of metalloids include silicon and arsenic.
What are the chemical properties of metalloids?
Metalloids have properties that are in between metals and nonmetals. They have properties such as semiconductivity, which means they can conduct electricity under specific conditions and are used in electronic devices. Metalloids also tend to have varying degrees of metallic and nonmetallic properties, such as being brittle like nonmetals but having metallic luster.
Define the terms homozygote and heterozygote?
Homozygote: (genetics) an organism having two identical alleles of a particular gene and so breeding true for the particular characteristic. Heterozygote:(genetics) an organism having two different alleles of a particular gene and so giving rise to varying offspring.
