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An unknown material is rubbed with silk and becomes charged Explain how you could use a negative acetate strip or a positive glass rod to determine the type of charge on the unknown material?
If you move the material near the negative acetate strip and they repel each other, the material negatively charged. If they move towards each other, it is positively charged. If you move the material near the positive rod and they attract, the material is negatively charged. If they repel, it is positively charged. This is because opposite charges attract and same charges repel.
Does properties mean to describe something?
Since characteristic properties for a given substance never change, they can be used to identify unknown matter.
How was the periodic table useful in predicting the existence of elements before they were discovered?
The periodic table organized elements based on their properties, allowing scientists to identify gaps in the table where new elements might exist. By examining the patterns in elemental properties, such as atomic number and electron configuration, scientists could predict the properties of undiscovered elements and guide their search for these elements. This helped in anticipating the existence and properties of elements before they were officially discovered.
What will you get if you combine geological agregant of minerals with its lowest form?
Combining geological aggregates of minerals with their lowest form may result in a homogenous mixture that exhibits properties of both the individual minerals and their aggregate. The resulting material could potentially have a unique combination of characteristics from both components, offering a blend of structural stability and elemental properties.
What properties could be used to help determine whether the sample is rreally zinc?
Some properties that could be used to help determine if a sample is really zinc include its density (7.14 g/cm3), melting point (419.5 °C), color (silvery blue), and reaction with acid (produces hydrogen gas). Conducting a flame test, where zinc emits a blue-green flame, can also be used to identify zinc.
How would a contaminated unknown sample affect the accurate identification of the unknown?
A contaminated unknown sample could potentially introduce foreign material that may interfere with the identification process. This contamination could lead to misleading results or hinder the ability to correctly identify the unknown sample. It is important to ensure the sample is pure and free from contamination for accurate identification.
When might it be helpful to identify an unknown element?
Identifying an unknown element is helpful in various scientific and industrial applications, such as determining the composition of a material, investigating pollution sources, or developing new technologies. It can also be crucial in fields like forensic science, environmental monitoring, and quality control.
An unknown material is rubbed with silk and becomes charged Explain how you could use a negative acetate strip or a positive glass rod to determine the type of charge on the unknown material?
If you move the material near the negative acetate strip and they repel each other, the material negatively charged. If they move towards each other, it is positively charged. If you move the material near the positive rod and they attract, the material is negatively charged. If they repel, it is positively charged. This is because opposite charges attract and same charges repel.
How can you identify an unknown animal fur?
TO be totally sure, it could be DNA tested. Otherwise, a taxidermist might have a good guess.
What are three physical properties that could be used to identify gold?
Look up the Wikipedia article on gold, especially the introductory paragraphs. Physical properties include its density (one of the highest of all metals), malleability, color, electrical conductivity, etc.
A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into a glass of water and mixed. Despite mixing the tan liquid remains separated from the water?
The unknown tan-colored liquid may be immiscible in water, meaning it does not mix or dissolve in water. This could be due to differences in polarity or solubility between the two substances. Further testing and analysis would be needed to identify the specific properties of the unknown substance.
Could you use taxonomic key to classify different types of carnavors?
The taxonomic key is a device used to identify unidentified organisms, so theoretically, it could be used to identify unknown carnivores. A dichotomous key is used to identify different species, so it too could be used in carnivorous animal identification.
What does 'material properties' mean?
It truly could mean anything, depending on the material, to guide you in the right direction, material properties could include Malleability Compressive strength Ductility Fatigue limit Flexible modulus Flexible strength Fracture toughness Hardness Poisson's ratio Shear modulus Shear strength Softness Specific modulus Specific weight Tensile strength Yield strength Young's modulus Density Shear strain Permeability pH Surface Tension Melting Point Conductivity Hope that helps, there are many more properties that could be listed on this question!
How would you test an unknown substance for to determine what organic molecules it contained?
You could start by performing tests such as chromatography to separate the different components in the substance and identify their properties. Mass spectrometry could help determine the molecular weight of the compounds present. Lastly, infrared spectroscopy can provide information on the functional groups present in the organic molecules.
Why must the property of a material be considered before it is used to make a product?
Understanding the properties of a material is crucial because it determines how the material will behave in different conditions, such as strength, flexibility, durability, and conductivity. Selecting the right material with the desired properties ensures that the product will be suitable for its intended use and will perform as expected. Failure to consider properties could result in the product not functioning correctly or lacking in performance.
What is a word or phrase that further describes a document in excel workbook?
You could mean its properties. It could be a worksheet or a spreadsheet.You could mean its properties. It could be a worksheet or a spreadsheet.You could mean its properties. It could be a worksheet or a spreadsheet.You could mean its properties. It could be a worksheet or a spreadsheet.You could mean its properties. It could be a worksheet or a spreadsheet.You could mean its properties. It could be a worksheet or a spreadsheet.You could mean its properties. It could be a worksheet or a spreadsheet.You could mean its properties. It could be a worksheet or a spreadsheet.You could mean its properties. It could be a worksheet or a spreadsheet.You could mean its properties. It could be a worksheet or a spreadsheet.You could mean its properties. It could be a worksheet or a spreadsheet.
What was the date when the first body was laid in the tomb of the unknown soldier in Arlington Cemetery?
...No one knows who he was. That is the reason for the name it is the tomb of the unknown soldier. It is where unidentified remains could be remembered, if they could identify who the people were they wouldn't be in the tomb of the unknown soldier instead they would be buried with a headstone that bore their name.
