The belief that matter was composed of the four elements—earth, fire, air, and water—originated with ancient Greek philosophers, most notably Empedocles in the
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Chemistry
In a negatively skewed dist. following statements are true except?
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In a negatively skewed distribution, the mean is typically less than the median, and Địt mẹ thằng mic the median is less than the mode.
This results in a tail that extends longe
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Chemistry
What is cultural dispersion?
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Cultural dispersion refers to the spread and transmission of cultural elements, such as beliefs, practices, languages, and artifacts, from one society or region
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Chemistry
Why do we add H and H2 to some half reactions and OH- and H2O to others?
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In redox reactions, we add H and H2 to half-reactions in acidic solutions to balance the hydrogen atoms and maintain charge neutrality. Conversely, in basic sol
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Chemistry
What is AsperPen Like Group?
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AsperPen Like Group is a community or support group focused on individuals with Asperger's Syndrome, a condition on the autism spectrum. The group typically aim
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Elements and Compounds
+1
What is the atomic number of NH2?
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NH2 is not an element but a molecular group known as the amine functional group, specifically an amino group. It consists of one nitrogen atom and two hydrogen
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Chemistry
What are micelles made from?
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Micelles are formed from amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts. In aqueous solutions, th
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Chemistry
What is an example of a liquid medium in drawing?
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An example of a liquid medium in drawing is ink, which can be applied with pens, brushes, or nibs to create detailed lines and expressive textures. Another liqu
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Chemistry
+2
Is pyrite found naturally in washington state?
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Yes, pyrite, also known as fool's gold, can be found naturally in Washington State. It is often associated with various geological formations and can be found i
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Chemistry
Why does the liquid inside the tube of a thermometer goes up and down?
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The liquid inside a thermometer rises and falls due to changes in temperature. When the temperature increases, the liquid expands and moves up the tube, indicat
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Chemistry
Will powder coated cast iron rust?
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Powder-coated cast iron is generally resistant to rust due to the protective layer of powder coating, which acts as a barrier against moisture and air. However,
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Chemistry
Why do the lines converge at high frequencies in the emission spectrum?
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In an emission spectrum, lines converge at high frequencies due to the increased energy separation between quantized energy levels in atoms or molecules. As fre
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Chemistry
In the winter climate of Boston substances would become more soluble in water?
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In the winter climate of Boston, colder temperatures generally decrease the solubility of most solids in water. However, gases like carbon dioxide become more s
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Chemistry
What elements are very unreactive which have 5 letters?
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The elements that are very unreactive and have five letters include "argon" and "krypton." Both are noble gases, which are known for their l
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Chemistry
Why do group 0 (the gases) not react?
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Group 0, also known as the noble gases, do not readily react with other elements because they have a complete outer electron shell. This stable electronic confi
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Chemistry
What is closest to the average mass of one atom of copper?
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The average mass of one atom of copper is approximately 63.5 atomic mass units (amu). In grams, this is about 1.055 x 10^-25 kg per atom. Copper's atomic mass r
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Chemistry
Why is the source of a-particles kept inside the lead block?
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The source of alpha (α) particles is kept inside a lead block to shield against radiation exposure. Lead effectively absorbs and attenuates alpha particles, whi
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Chemistry
What technique compresses the surface of clay and causes it to be water tight and have a sheen to the surface?
Asked by Anonymous
The technique that compresses the surface of clay to make it watertight and gives it a sheen is called burnishing. This process involves rubbing the surface of
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Chemistry
What happens if a dubia roach loses its egg sack?
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If a dubia roach loses its egg sack, it will not be able to produce offspring from that particular batch. The loss of the egg sack can lead to stress and potent
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Chemistry
What three things produce carbon dioxide?
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Three primary sources of carbon dioxide are the burning of fossil fuels, respiration in living organisms, and decomposition of organic matter. When fossil fuels
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Chemistry
What is the term that describes the total amount a recipe makes?
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The term that describes the total amount a recipe makes is "yield." Yield indicates the number of servings or portions that the recipe produces, helpi
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Chemistry
What are the hot expanding gases generated by the combustion reaction in the engines?
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The hot expanding gases generated by combustion reactions in engines primarily consist of carbon dioxide (CO2), water vapor (H2O), nitrogen (N2), and various ot
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Chemistry
Is it chl a solvent or a compound?
Asked by Anonymous
Chl, or chloroform, is a solvent. It is a colorless, volatile liquid used primarily in laboratories and industrial applications for dissolving organic compounds
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Chemistry
What do sweetex contain?
Asked by Anonymous
Sweetex is a brand of artificial sweetener primarily made from saccharin, a synthetic compound that is significantly sweeter than sugar but contains no calories
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Chemistry
What is the example for compound 10 and symbols?
Asked by Anonymous
Compound 10 typically refers to a specific chemical compound in various contexts, but without additional information, it's unclear which exact compound is being
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