This then leads to the fact that the partial negative and positive parts of the water molecule can break the bonds of ionic and polar molecules which causes them to dissolve within the…
When the atoms of the molecules collide, heat energy is produced/released. More atoms colliding, make more energy to release. Therefore, metals are very good conductors of heat. 4. Malleability and Ductility: -Malleable- To be beaten into sheets -Ductile- To be drawn into…
Surface tension is a cohesive force where a liquid molecule attracts…
An isotope is an atom containing different numbers of neutrons, differing in atomic mass. Basically an atom with a different atomic mass. What’s special about radioactive isotopes is that a radioactive isotope has a nucleus that decays spontaneously giving off particles and energy. 6. Radioactive tracers are used in science to label certain chemical substances, so metabolic processes can be followed and substances can be located in an organism.…
EGG LAB ANALYSIS Bouncy egg trick: You turn an egg into a bouncy ball by leaving the egg in vinegar. on the first day we place the egg into vinegar which helps break down the eggshell. Vinegar is a acid which dissolves the eggshell, which is made of calcium carbonate, turning the shell to carbon dioxide. Vocab/ Relation Osmosis: diffusion of water Diffusion: molecules to spread out in order to occupy an available space, without using energy.…
The solvent then moves up the filter paper via capillary action and carries the mixture's pigments with it (Rosen and Gothard, 2010). Capillary action occurs when adhesive forces, the attraction between particles of the same type, outweigh cohesive forces, attraction between two different particles (Ellis, n.d.). How far a mixture's pigments move up the filter paper depends on each pigment's solubility with the mobile phase (Science Buddies, 2014). More soluble pigments react more with the solvent than the filter paper, and get carried by the solvent further up the paper. Less soluble pigments react more with the filter paper than the solvent and travel a shorter distance.…
Hydrogen bonds are one of the major reasons we have life on earth. Hydrogen bonds give water its properties including how water molecules organize themselves. Ethanol get inbetween these water molecules and disrupts their organization. And yes, liquid water is an organized fluid. Not quite as organized as frozen water (ice) but organized none the less.…
What are the nonpolar parts of a phospholipid? c. Tail group 4. This is the only polar portion of a cholesterol molecule and it forms hydrogen bonds with the polar heads of phospholipids. d. –OH group 5.…
“…drops of liquid sealing wax, drops that adhere, incrust, incorporate themselves…
The purpose of this EEI is to create and analyse an experiment that relates to and supports the theory of osmosis in biological cells. Cells are the biological building block for all life; all living organisms have cells also. Cells provide structure, absorb nutrients from food and convert those nutrients into energy so that the cell can carry out specialized functions. There are two main categories with most organisms and their cells; prokaryotes and eukaryotes. The distinctive difference between prokaryotes and eukaryotes is that eukaryotic cells contain membrane-bound organelles, such as the nucleus, while as prokaryotic cells do not.…
An object can either be wet or dry. Wet is describing the state of the object when it is touched by water. The definition of wet is something that is “covered or saturated with water or another liquid. Water covering more water, that just makes more…
1.Introduction: Background/Aim. 1.1 Nature of the microorganism: Enterococcus faecalis was placed under group D streptococci because of similar lysis characters; Identified as Gram positive, non-motile, anaerobic fermentative, lactic acid bacteria; are commensal inhabitant of intestinal bacteria and opportunistic pathogens. They occur singly or in pairs or chains. 1.2 Economic importance: Enterococcus faecalis is also used as a probiotic for production of Mediterranean cheese and meat products that is normally responsible for organoleptic nature of final product in fermentation reactions. 1.3 Habitat: Enterococci are extremely hardy microbes such that they are able to inhabit at wide range of temperatures (10°and 45°C), pH values (4•6 and…
The human body has many amazing qualities and so many of them are made up of small proteins. Keratin is the main component of your hair, skin, and nails. Integrin acts a sort of messenger. Cadherin acts a binder, creating the structure of cells. So many different proteins help make the world turn waiting the human body, but they do different things.…
This is because the oil molecules are much bigger than water molecules that has more surface to stick to one another because more energy is needed to overcome the chemical…