What is the difference between a physical property and a chemical property forensics?

Chemical properties are those that can only be measured by attempting to change the chemical identity of a material through a chemical reaction. Physical properties are those that can be measured without having to change a material’s chemical identity.

What is the difference between physical property and chemical property?

A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. … A chemical property describes the ability of a substance to undergo a specific chemical change.

What is the difference between a physical property and a chemical property give at least two examples of each?

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. … Flammability and corrosion/oxidation resistance are examples of chemical properties.

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Which of the following is an example of a physical property forensics?

The forensic scientist must constantly determine those properties that impart distinguishing characteristics to matter, giving it a unique identity. Physical properties such as weight, volume, color, boiling point, and melting point describe a substance without reference to any other substance.

What are chemical properties in forensic science?

Chemical properties determine how a substance behaves in the pres- ence of other substances. For example, iron will react with oxygen in the presence of water to produce rust, or iron oxide. Changes to a substance that alter its chemical identity are chemical changes.

What are 4 chemical properties?

The change of one type of matter into another type (or the inability to change) is a chemical property. Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion.

Is reacts with water a physical or chemical property?

Combining hydrogen and oxygen to make water is a physical change. Breaking up concrete is a physical change. Sand being washed out to sea from the beach is a chemical change.

Which option is an example of a chemical property?

Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion. Iron, for example, combines with oxygen in the presence of water to form rust; chromium does not oxidize (Figure 2).

IS can neutralize a base a physical or chemical property?

A base is thought of as a substance which can accept protons or any chemical compound that yields hydroxide ions (OH-) in solution. Both acids and bases can neutralize each other. reacts with water to form gas. Physical property.

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What are the two classifications of physical properties?

There are two main types of physical properties: extensive and intensive properties.

Which of the following are examples of physical properties?

Examples of physical properties are: color, smell, freezing point, boiling point, melting point, infra-red spectrum, attraction (paramagnetic) or repulsion (diamagnetic) to magnets, opacity, viscosity and density.

What are physical properties give two examples?

Some examples of physical properties are:

  • color (intensive)
  • density (intensive)
  • volume (extensive)
  • mass (extensive)
  • boiling point (intensive): the temperature at which a substance boils.
  • melting point (intensive): the temperature at which a substance melts.

What are some examples of physical change?

Examples of physical changes are boiling, melting, freezing, and shredding. Many physical changes are reversible, if sufficient energy is supplied. The only way to reverse a chemical change is via another chemical reaction.

What are chemical properties of soil?

Chemical Analysis. Soil chemical properties, including heavy metal concentrations, pH, total carbon, total nitrogen, CEC, exchangeable calcium (Ca), magnesium (Mg) and potassium (K), exchangeable Al and hydrogen (H) and available phosphorous (P), were determined following standard laboratory methods.

What are physical and chemical properties forensics?

Chemical properties are those that can only be measured by attempting to change the chemical identity of a material through a chemical reaction. Physical properties are those that can be measured without having to change a material’s chemical identity.

What are the techniques used in forensic science?

Traditional forensic analysis methods include the following:

  • Chromatography, spectroscopy, hair and fiber analysis, and serology (such as DNA examination)
  • Pathology, anthropology, odontology, toxicology, structural engineering, and examination of questionable documents.
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