what structural feature determines the physical state of a substance
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- The physical properties of molecular substances Molecules are made of fixed numbers of atoms joined together by covalent bonds, and can range from the very small (even down to single atoms, as in the noble gases) to the very large (as in polymers, proteins or even DNA).olecular substances tend to be gases, liquids or low melting point solids, because the intermolecular forces of attraction are comparatively weak. You don't have to break any covalent bonds in order to melt or boil a molecular substance.
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Definition of a Chemical Change We describe and categorize different types of matter by referring to its physical or chemical properties. Physical properties are the traits of an object that can be readily seen such as size, color and state. Measuring or changing these properties does not affect the chemical nature of the matter. For example, a paper that is cut into small pieces has undergone a physical change. The pieces have a different quantity, size, shape and texture than the original sheet. Chemical properties are the characteristics that describe the composition of matter.
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Characteristic property A characteristic property is a chemical or physical property that helps identify and classify substances. The characteristic properties of a substance are always the same whether the sample one is observing is large or small.haracteristic properties are used because the sample size and the shape of the substance does not matter. 1 gram of lead is still the same color as 100 tons of lead.
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- A physical property of a pure substance is anything that can be observed without changing the identity (that is, the chemical nature) of the substance. The obervations usually consist of some type of numerical measurement, although sometimes there is a more qualitative (non-numerical) description of the property.
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Chemical & Physical Properties: Definitions Physical and Chemical Properties Physical properties are those that can be observed without changing the identity of the substance. The general properties of matter such as color, density, hardness, are examples of physical properties. Properties that describe how a substance changes into a completely different substance are called chemical properties. Flammability and corrosion/oxidation resistance are examples of chemical properties. The difference between a physical and chemical property is straightforward until the phase of the material is considered. When a material changes from a solid to a liquid to a vapor it seems like them become a difference substance.
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- Are these chemical or physical properties? 1. red color 2. density 3. flammability 4. solubility 5. reacts with acid to form hydrogen 6. supports combustion 7. bitter taste 8. melting point 9. reacts with water to form a gas 10. reacts with a base to form water 11. hardness 12. boiling point 13. can neutralize a base 14. luster 15.... show more 1. red color
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UNITED STATES DEPARTMENT OF LABOR Physical Properties of a Pure Substance, Water. The chemical and physical properties of a substance characterize it as a unique substance, and. the determination of these properties can often allow one to determine the identity of an. unknown substance. Physical properties such as color, density, freezing point, normal boiling. point and refractive index are those properties which can be determined without altering the. chemical properties of the substance. That is, after the property has been determined, the. material can be recovered in its original state by physical methods. The determination of. chemical properties usually involves a chemical process, which changes the properties of the. material under study by transforming it into a new substance(s).
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Chemical and Physical Properties of Different Elements and Compounds An element or compounds’ physical properties are far easier to detect. These properties are things that can be observed without changing the identity of the element or compound. These properties include color, smell, freezing point, boiling point, melting point, opacity, viscosity, and density. Some elements have different physical properties depending on their chemical makeup as some elements can come in different chemical forms.
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Basic TB Facts Tuberculosis (TB) is a disease caused by bacteria called Mycobacterium tuberculosis. The bacteria usually attack the lungs. But TB bacteria can attack any part of the body such as the kidney, spine, and brain.
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- However, physical properties may be thought of as measures of the bulk behavior of milk and of how milk interacts with energy, while physico-chemical properties are measures of how bulk behavior and energy interactions depend on milk’s constituent colloidal particles, molecules, atoms, and ions.
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Structural Biochemistry/Water It consists of an oxygen atom connected to two hydrogen atoms by polar covalent bonds. It is considered to be the universal solvent for many reasons including its structural, chemical and physical properties. These properties result in the many unique characteristics of water.
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- For example, a physical property of water is that … it freezes at a temperature of 0 degrees Celsius. A chemical property is a characteristic of a pure substance that describes its ability to change into different substances.For example, a chemical property of methane is that it can catch fire and burn in air. Physical properties can be observed or measured without changing the composition of matter.Physical properties are used to observe and describe matter.or example, a physical property of water is that … it freezes at a temperature of 0 degrees Celsius. A chemical property is a characteristic of a pure substance that describes its ability to change into different substances.
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- properties are classified as physical properties and chemical properties. Physical properties are those that can be determined or measured without changing the composition or identity of the substance. These properties include color, odor, taste, density, melting point, boiling point, conductivity, and hardness.
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- For example, a physical property of water is that … it freezes at a temperature of 0 degrees Celsius. A chemical property is a characteristic of a pure substance that describes its ability to change into different substances. For example, a chemical property of methane is that it can catch fire and burn in air.Physical properties can be observed or measured without changing the composition of matter.he chemical property of a given element refers to the property that is used to characterize the reaction of the materials hence their identity.
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- Determination of chemical properties results in the change of the identity of the substance. Some properties, such as solubility, melting point, boiling point, and density are independent of the amount of. substance being examined. These properties are known as intensive properties and are used to identify a. substance.
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Chemical & Physical Properties: Definitions These properties can then help us model the substance and thus understand how this substance will behave under various conditions. Some of the more important physical and chemical properties from an engineering material standpoint: 1  Phase Transformation Temperatures. 2  Density. 3  Specific Gravity. 4  Thermal Conductivity.
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Chemical & Physical Properties: Definitions Physical properties are those that can be observed without changing the identity of the substance. The general properties of matter such as color, density, hardness, are examples of physical properties. Properties that describe how a substance changes into a completely different substance are called chemical properties.
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- A physical property is one that can be changed without altering the  chemical formula of the substance, e.g., gas to liquid. A chemical  property is one that is unique to th…at substance and altering it  will change that substance chemically, e.g. density or molar mass.
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Mineral Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species, which were determined by the mineral's geological environment when formed. Changes in the temperature, pressure, or bulk composition of a rock mass cause changes in its minerals. Minerals can be described by their various physical properties, which are related to their chemical structure and composition.
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Solubility The solubility of a substance fundamentally depends on the physical and chemical properties of the solute and solvent as well as on temperature, pressure and the pH of the solution.
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- Physical properties include color, density, solubility, and the state of the matter. Chemical properties describe the changes that take place when new substances are formed during a chemical reaction. When matter undergoes a change, it is classified a either a physical change or a chemical change. During a physical change, only the size, temperature, or physical state of the substance changes.
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- The physical properties of molecular substances Molecules are made of fixed numbers of atoms joined together by covalent bonds, and can range from the very small (even down to single atoms, as in the noble gases) to the very large (as in polymers, proteins or even DNA).
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What are Minerals? However, rarity is not a property and its value is determined by supply and demand.). The primary characteristics of a mineral that determine its physical properties are its composition and the strength of the bonds in its ordered internal structure.
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Test Bank Of Essentials of Anatomy And Physiology 7th Edition by Martini Bartholomew The three factors determine the chemical properties of an element:    The number and arrangement of electrons in an atom   The number of valence electrons   The … number and arrangement of electrons   . + 19 others found this useful.
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- Physical properties are characteristics of a substance observed without a change in composition or identity. Appearance, density, solubility and physical state-whether the s … ubstance is a solid, liquid, or gas-are physcial characteristics.
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Chemical & Physical Properties: Definitions Examples of chemical properties are: heat of combustion, clammability and corrosion/oxidation resistance, reactivity with water, PH, and electromotive force. The difference between a physical and chemical property is straightforward until the phase of the material is considered. When a material changes from a solid to a liquid to a vapor it seems like they become a difference substance.