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  • Waiting for answer What type of mixtures can be separated by centrifugation?

    Centrifugation separates the components of heterogeneous mixtures. These include liquids in liquids, solids in liquids, and solids and liquids in gases. Centrifugation uses centrifugal force to move dense components to the outside of the container. This causes the solid to settle more rapidly and...

  • Waiting for answer Where in the heart is the sinoatrial node located?

    The sinoatrial node is located in the superior wall of the right atrium . The heart has its own intrinsic regulating system called the conduction system, that generates and distribu...

  • Waiting for answer Is HCl a polar or non polar molecule?

    It is polar. Hydrogen has a Pauling value of 2.1, while chlorine has a value of 3.0. As a result, the chlorine pulls electron away from hydrogen, giving the Cl side of the molecule a partial negative charge and the hydrogen side a partial positive charge. And separation of charge = polarity!...

  • Waiting for answer How are chitin and cellulose similar?

    The structure of chitin is similar to the polysaccharide cellulose, only difference between the hydroxyl groups in each repeating unit is substituted by N-acetyl groups. Cellulose structure Chitin structure (-OH functionality replaced by -NHAc)

  • Waiting for answer What does a low water potential mean?

    A low means that water has a low force driving it to move from one area to another Water potential is the "preference" of water to move from one place to another, and is made up of a...

  • Waiting for answer How does ph affect enzyme activity?

    Each enzyme has a different optimum pH , which is the ideal pH for the enzyme to perform its job successfully. As can be seen above, the optimum pH for the enzyme Salivary Amylase is around 7. The closer the pH is to 7, the higher the reaction rate. As the pH distances from the optimum, however...

  • Waiting for answer How to convert L to dm3 and ml to cm3 Questions: 1) 10cm3 t...

    There is no conversion necessary. Litres and ##dm^3## are numerically identical, as are ##ml## and ##cm^3##. ##dm^3## is "cubic decimetres". A decimetre is 10 cm - if you cube 10 c...

  • Waiting for answer What is the square root of 17 divided by 2 equal?

    ##sqrt17/2## or ##2.061552812809## ##sqrt17/2## This is already a simplified as possible without using a calculator, which gives you ##2.061552812809##.

  • Waiting for answer What is an inelastic collision?

    A collision between objects that permanently changes the objects' shape and/or generates heat. In brief: A collision between objects that permanently changes the objects' shape a...

  • Waiting for answer What are some examples of organisms in the phylum nematoda?

    Toxocara canis - the one that puppies are "wormed" to remove and that can cause blindness in children if they come into contact with animal faeces and are infected. Vinegar eels - tiny free living worms that can live in vinegar or liquids that can become vinegary such as cider, wine, beer etc. Caeno...

  • Waiting for answer What is active immunity and passive immunity?

    Active immunity involves antibody production by your B lymphocytes, passive immunity involves administration of antibodies. Now before we proceed, let us define some terms Let us...

  • Waiting for answer What is Biome and what it's benefits and how kinds of biomes...

    A biome is a large community of animals and plants in a distinct climate or region. The main biomes we have are tundra, forest, desert, and grassland.

  • Waiting for answer How do you simplify ##sqrt(120/121)##?

    ##sqrt((120)/(121))## = ##sqrt(120)/(sqrt(121))## ##sqrt(121) = 11 ## ##sqrt(120)## = ##2sqrt(30)## therefore, ##sqrt((120)/(121))## = ##(2sqrt(30))/(11)##

  • Waiting for answer Why does ##HBr## have a higher boiling point than ##HCl##?

    As a physical scientist, you really should quote these boiling points, these physical data. ##HBr## is a larger, more polarizable molecule than ##HCl##. There should be a greater...

  • Waiting for answer What is the function of ribosomal RNA?

    Ribosomal RNA (rRNA) is responsible for the translation of mRNA to protein. The mRNA strand is transcribed from a section of DNA, and then translated by the ribosome complex. Ribos...

  • Waiting for answer In a diels-Alder reaction with cyclopentadiene and maleic an...

    You should notice that both of them have three double bonds. It is very possible that cyclopentadiene can dimerize. And although it may seem tempting to believe that maleic anhydride can do that too, it is in an s-trans conformation, which isn't favorable in the Diels-Alder reaction, so I would on...

  • Waiting for answer How do you show that the derivative of an odd function is ev...

    I think you could do it like this: Let f(x) be the odd function we're gonna work with. So, f(-x) = -f(x), By the definition of the derivative: f'(x) = ##lim_(h- 0)(f(x+h) - f(x))/h##. We want to prove that f'(-x) = f'(x). Now, f'(-x) is: ##f'(-x) = lim_(h- 0)(f(-x+h)-f(-x))/h## . Since f(x) is...

  • Waiting for answer What is the difference between a conjunction and a prepositi...

    A conjunction is a word used to connect clauses or sentences or to coordinate words in the same clause. A preposition usually describes the position of something. A conjunction 's...

  • Waiting for answer How does adding salt affect the surface tension of water? If...

    Yes, adding salt to water does increase the surface tension of water, although not by any significant amount. It is a very common misconception that salt is a surfactant , i.e. a compound that either lowers or breaks surface tension. However, experiments done with salt water show that surface tens...

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