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…
1.Because of the Earths daily rotation it causes the sun to appear to rise in the east and set in the west so it creates a day and night so the moon relies on the sun to set and rise during a certain time in the hemisphere 2.The seasons result from the 23.5-degree tilt of the Earth's axis combined with its revolution around the sun 3.The Moon's and Sun's gravitational pulls on Earth are responsible for this natural phenomenon creating the tides. Tides occur because the Moon's gravity decreases with distance from the Moon. 4. A lunar eclipse occurs when the Earth is positioned directly between the Sun and the Moon and the Earth casts a shadow on Moon.…
1. DNA Structure and Function DNA is the type of organic compound that stores the genetic information in a living organism. DNA is made up of two strands of nucleotides, which include a phosphate group, five carbon sugar, and a nitrogenous base. Each individual strand in held together by strong covalent bonds (a bond formed as a result of the distribution of electrons between atoms). The two strands are then joined to each other by hydrogen bonds between complementary bases.…
The Ancient Persian-Greek Wars began in 499 B.C.E. and lasted until 479 B.C.E (Kagan 64). This war is so infamous because of all the battles where the Greek underdogs triumph over the massive Persian forces. These events include a revolt against Persian forces and some major infantry and naval battles. All of these significant skirmishes led up to one outcome, the formation of the Delian league.…
Multiple research has been done by a variety of institutions to find out why the government continues to become more polarized. A theory done by the Washington post has cited that there is a possible reason why the two opposing ideologies have been drifting apart. A factor is social changing conditions with government actions have caused a disagreement about what and how the government should go about fixing an issue. The overwhelming issues in American politics are how much government should help individuals and who should pay for this, this argument has grown with the trend of both ideologies. More so, Ideas change about how much an individual can be held responsible for whatever situation they 're in.…
Persia and Greece were both strong and prosperous empires. The feud between the two Empires went on for many centuries. Although Persia and Greece gave man full authority, both empires developed different social structures and unalike religious beliefs. Persia and Greece both have dissimilar social structures that consist of certain individuals. In early western Iran, the society was categorized into three social classes.…
Reviewing medication list of elderly population can become challenging with the increased number of medications that one may take. Care should be taken to consider the elderly patients medical history, medication reaction history, and changes that the patient may be experiencing as they age. The patient may have tolerated and had benefits from medications for years, but as they age, dosages may need to be reevaluated. Medications may even need to be changed to a less aggressive approach as systems decline with advanced years. “Drugs can interact to alter the absorption, distribution, metabolism, or excretion of a drug or interact in a synergistic or antagonist fashion altering their pharmacodynamics.…
These bonds occurs when a hydrogen atom is bonded to oxygen, nitrogen, and fluorine atom of another molecule, or when a hydrogen atom is electrostatically attracted to a lone pair of electrons on oxygen, nitrogen, or fluorine atom of another molecule. Therefore this essay aims at exploring the relationships between the literature boiling points of four organic compounds (1-Pentanol, 3-Methyl-1-Butanol, 2-Hexanone, and 2-Pentanone) using the background theory of the various factors that affect the intermolecular forces within molecules of varying boiling…
NEWTON’S LAWS OF MOTION Water rockets have used many times to test and explore the fundamental principles of physics. To understand what determines how far a water rocket may fly or how a rocket may even lift off, it is important to delve into the deeper detail; the forces acting in play. Newtons Laws govern the central principles regarding the physical forces which may act on a particular object in space. There are three laws which were developed by Sir Isaac Newton in 1686, when he published his book Principia Mathematica Philosophiae Naturalis (NASA, 2015).…
Intermolecular Forces Intermolecular forces are the result of attractive or repulsive forces between atoms, molecules or ions, primarily as a result of electrostatic attractions; these forces act between discrete molecules. Intermolecular forces are weak forces but without them life as we know it would not be possible: water vapor would not condense into its liquid (or solid forms) if its molecules did not attract each other, and all matter, in fact, would exist as gases. The physical states of matter are commonly defined by their physical characteristics: a solid has a definite volume and shape, a liquid has a definite volume but not a definite shape and a gas has neither a definite volume nor a definite shape.…
1. INTRODUCTION 1.1. Drug Interactions Definition In brief explanation, it is the effect of one drug altered by another drug due to concurrent or concomitant administration of two or more drugs known as “drug interactions”. It can also be defined as the modification of pharmacological activity of one drug by concomitant or concurrent administration of two or more drug is known as “drug interactions”.…
Next is dipole- dipole forces which occurs between polar molecules. After that is dipole- induced dipole, it is weaker than dipole-dipole because its occurs between a polar and a nonpolar molecule. The weakest intermolecular force is london dispersion forces because it is only temporary…
Located outside of the nucleus, electrons are negatively charged. Due to their location and their ability to react with…
For a given hopping site, under dipole moment effect, the probability density, W(r), of having the nearest carrier trapped at a distance r is determined by the Poisson distribution as [72-75]: W(r)=4πr^2 N_t exp(-4/3 πr^3 N_t) (15) where r is the relative position of the dipole with respect to the charge. As a carrier trapped by a localized state, the potential energy of the Coulomb interaction between the carrier and dipole moment can be expressed as [73-75]: E_CC=-(qP cosθ)/(4πε_0 ε_r r^2 ) (16) where q is the elementary charge, ε_0 is the dielectric permittivity, and ε_r is the relative dielectric permittivity, and θ is the angle between vector L ⃗ and r ⃗. Thanks to the random distribution of dipole orientation, the total energy of the interaction between charge and the total dipole moment in the dipole layer of the interface is calculated as [72-74]: E_C=∫_(-π/2)^(π/2)▒∫_0^(π/2)▒E_CC □(24&dθ□(24&dφ=)) ∫_(-π/2)^(π/2)▒∫_0^(π/2)▒(-(qP cosθ)/(4πε_0 ε_r (t⁄cosφ )^2 )) □(24&dθ□(24&dφ= qP/(8ε_0 ε_r t^2 )))…
Water exists in all three physical states only on planet earth, the only planet where life exists in the whole of universe. Water supports life on earth due its unique physical properties such as density, temperature variation, reflectivity, surface tension, specific heat, boiling and freezing points, as well as its chemical properties including its polar nature, dissolving ability and capacity to act both as an acid or base. The exceptional physical properties are all attributed to water’s specific chemical structure and bonding. Ice is less dense compared to liquid water and hence floats on top oceans, protecting aquatic life. Water temperature affects dissolved gases concentration, rate of photosynthesis and other metabolic activities, conductivity,…