They changed because the molecules of hydrogen and helium were moving so fast that they eventually escaped the Earth. 14. Explain how the greenhouse effect works and how it relates to global warming. The greenhouse effect is when radiation at visible wavelengths passes freely through the atmosphere and is absorbed at the ground. The ground heats up and emits infrared radiation.
Carbon dioxide is an significant contributor to the enhanced greenhouse effect. It can result in trapping more of the heat that Earth is radiating into space and cause detrimental climate changes and rising sea levels. The main concern regarding the combustion of organic compounds is the result of incomplete combustion. Incomplete combustion occurs when there is not enough oxygen to completely burn the fuel to carbon dioxide and water, causing pollution and fuel inefficiency. For example: Pentane reacts with little oxygen to form
Alkanes respond with halogen, (for example, chlorine or bromine) when the mixture is presented to ultraviolet light (symbolized as hv or UV) or when warmed to high temperature (200 - 400c)). The capacity of ultraviolet light is to give vitality to the homolytic cleavage of halogen (Cl-Cl or Br-Br). The items are haloalkanes (RX) and hydrogen halides (Hx) .The halogenation of alkanes is a free radical substitution response, in which the system includes start, spread and end steps. The monosubstitution of alkanes alludes to the substitution response where there is one and only hydrogen molecule in alkanes substituted by halogen free radical. General mechanism The chain component is as per the following, utilizing the chlorination of methane as an issue illustration: 1.
The relative reactivity of the hydrogens H1, H2, H3 , and H4 were 0.37, 1.4, 2.9, and 1.0 respectively. The radical chlorination of 1-chlorobutane follows the radical reaction mechanism. Abstraction of hydrogen from 1-chlorobutane by the chlorine radical occurs in the first part of the propagation step. Depending on which hydrogen is abstracted by the chlorine radical, determines which product is formed. Hydrogens on the alkene have different reactivity which determines which isomer is favored.
Name: Alexis Savastano How Does pH Affect an Enzyme? Catalase is an enzyme that helps decompose the toxic hydrogen peroxide that is produced during normal cell activities. The products of this reaction are water and oxygen gas. The pressure of the oxygen gas in a closed container increases as oxygen is produced. Any increase in the rate of reaction will cause an increase in the pressure of the oxygen.
2. What gas is produced naturally in the stratosphere and is also a primary component of photochemical smog in polluted air at the surface? a. carbon dioxide b. carbon monoxide c. ozone d. nitrogen dioxide e. hydrocarbons 3. Which of the following is not considered a temperature scale? a. Fahrenheit b. Kelvin c. Calorie d. Celsius 4.
D. Scholar Geography 1 November 11, 2012 Test Corrections #1 Question: Which atmospheric heating process involves the emission of energy from an object? Correct Answer: E) Radiation My Answer: D) Why it’s Wrong: Radiation is the right answer because it has much stronger. It’s stronger than transmission, scattering, reflection and absorption. A good example would be: if your wearing a black shirt out in the sun you would be much hotter than if you’re wearing a white shirt. The black shirt would also fade over time because the suns rays would eat up the shirt.
They go in order of the rainbow; red being the weakest and violet being the strongest. PURPOSE: The purpose of this experiment is to burn atoms of a metal using a flame burner to see how much energy a photon releases by the color of light emitted. Also by observing the photon; the ability to specify an unknown substance will be available. PROCUDURE: Seven well plates were obtained and labeled with the name of the known substances. In each well plate place a small amount of known substances into the well plate.
Water also controls our climate weathers. Warm body of water is evaporated, causing high level of wind intensity. For example, the southeastern coast of the US is annually pummeled by hurricanes and tropic storms. Although we would rather live without them, it is a way of balancing the atmosphere. Water is used in photosynthesis by plants, which produce oxygen - this reaction is vital for the earth as the oxygen produced is used by humans to breath Water is used in coal powered electricity stations.
Sulfuric Acid is a strong acid that exists as a colorless oily corrosive liquid and is made by reacting sulfur trioxide with water. This is most commonly found in batteries, manufacture of fertilizers, explosives, detergents, dyes and other different chemicals. Sulfuric Acid is very dangerous to humans as it can cause respiratory tracts of humans and other animals while doing some major damage to plants that helps provide oxygen for us. Ground-level ozone is a secondary air pollutant formed when sunlight triggers reactions between nitrogen oxides and volatile hydrocarbons. If a human inhales ground-level ozone it can cause chest pain, throat irritation, and congestion.