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
There are advantages and disadvantages to their use as fuels. Fuels can come from renewable or non-renewable resources. Subject Content Candidates should use their skills, knowledge and understanding to: ■ evaluate the impact on the environment of burning hydrocarbon fuels Additional guidance: Knowledge and understanding of the products of burning hydrocarbon fuels and the effects of these products is limited to those named in the subject content for this section. Candidates may be given information and data about other fuels and their products of combustion for comparison and evaluation in the examinations. Candidates should know and understand the benefits and disadvantages of ethanol and hydrogen as fuels in terms of: ■ ■ ■ ■ consider and evaluate the social, economic and environmental impacts of the uses of fuels 3
B) Greenhouse gases prevent heat from leaving the earth. C) If the level of greenhouse gases increases, the temperature will decrease. D) Some greenhouses gases are needed to keep the proper temperature balance. E) none of the above 3) Which of the following is TRUE? A) Stoichiometry allows prediction of the amounts of products that form in a chemical reaction based on the amounts of reactants.
The raise of the temperature has been affecting humans and animals. Glaciers started to melt really fast which is affecting the animals that live in the north/south pole. Hydrofracking will make us alot of money and would let us to make our own natural gas and wouldnt have to get it from somewhere else but we are harming our environment we havent going to last here if we keep messing with
Where is all this melting ice going? “Sea level rise is caused by two factors related to global warming: the added water coming from the melting of land ice and the expansion of sea water as it warms up” (Global Climate Change: Key Indicators, 2014). All these indicators data need to be studied as
Some of the dissolved carbon dioxide remains in the water, the warmer the water the less carbon dioxide remains in the water. Some carbon dioxide is used by algae and phytoplankton through the process of photosynthesis. In the natural carbon cycle, there are two main processes which occur: * Photosynthesis = plants use carbon dioxide and produce oxygen. * Metabolism = oxygen is used and carbon dioxide is a product Humans impact the carbon cycle during the combustion of any type of fossil fuel, which may include oil, coal, or natural gas. Fossil Fuels were formed very long ago from plant or animal remains that were buried, compressed, and transformed into oil, coal, or natural gas.
Hydrogen bonding linked the borax solution and PVA together. Introduction This lab focused on producing “Ghostbuster Slime,” made from mixing borax solution (sodium Borate) with polyvinyl alcohol (PVA) solution. The polymer was created as a result from cross-linking the two solutions. A polymer is a substance containing a molecular structure built by a very large number of similar units, or monomers, linked together. The linkage of polymers is a determining factor in the properties of a substance, such as solubility, elasticity, and viscosity.
In this lab we used Mg as our metallic portion of the organometallic compound. Organometallic compounds are special in that they cause Carbon to become a nucleophile. More specifically in this lab we used R-Mg-Br an alkyl magnesium halide to project the nucleophillic properties onto the Carbon atom, known as a Grignard reagent because of it founder chemist Victor Grignard. The purpose of Grignard reactions is to create a C-C bond, more specifically a tertiary or a secondary alcohol. The Grignard reagents are usually created with the solvents anhydrous diethyl ether or THF and are very air sensitive.
Electrochemistry Homework Describe with the aid of labelled diagrams the structure and chemistry of a dry cell. Dry cells are electrochemical cells using a low-moisture electrolyte. They contain a centre of carbon rod, surrounded by an electrolyte paste and a zinc container. In the centre of most dry cells is a pure carbon rod (cathode) in the form of graphite. The carbon rod is surrounded by a layer of manganese dioxide (MnO2), and a thick paste of ammonium chloride (NH4Cl) and zinc chloride (ZnCl2), which serves as an electrolyte.
Over the years we have seen the change grow rapidly. Firstly the greenhouse gas emissions are the main cause of climate change. The five following gasses contribute to the greenhouse gas effect: Water Vapor, Carbon Dioxide (CO2), Methane, Nitrous Oxide, and Chlorofluorocarbons (CFCs). Water Vapor is the most rich greenhouse gas. It increases as the Earth’s atmosphere warms which makes it the most feedback mechanisms to the green house effect.