| 21. | acid rain
Introduction
What is acid rain?
Acid rain is precipitation containing harmful amounts of nitric acid and sulfuric acids formed primarily by nitrogen and sulfur oxides released into the atmosphere. It can be wet precipitation (rain, snow, or fog) or dry precipitation (absorbed gaseous and particula...
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| 22. | factors that affect the rate of reaction between acids and Calcium Carbonate
Investigation
The factors that affect the rate of reaction between acids and Calcium Carbonate.
Aim
An investigation to find out if the type of acid involved in acid rain and the concentration of such acid affect the rate of reaction with marble chips, or Calcium Carbonate, which is also an impor...
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| 23. | acid base
Introduction
According to the Bronsted-Lowry Theory of Acids and Bases, an acid is a proton donor and a base is a proton acceptor. In solution acids and bases reacting together are separated into conjugate acid/base pairs. In any conjugate acid/base pair the strength of the acid and base is inver...
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| 24. | Wind Turbines Versus Power Plants
... Wind power avoids many of these problems. ...
The production of electricity from power plants is responsible for a major portion of air pollution. According to the EPA electric generation causes:
Ø 64 % of all emissions of sulfur dioxide, the leading component of acid rain and fine par...
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| 25. | Getting and Conserving Electricity
We don’t really have any good ways of getting and conserving electricity in a renewable or harmless way. The energy source that is used today is fossil fuels which, are both harmful and nonrenewable. All technology and transportation also burns fossil fuels. When fossil fuels are burned they produce...
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| 26. | Marble Chips and Hydrochloric Acid
Marble Chips and Hydrochloric Acid
PLANNING
AIM
To find if changing the concentration of an acid will increase or decrease the rate of the reaction when marble is dissolved in hydrochloric acid. ...
This theory can be proved if you compare the rates of reaction with marble in hydrochloric acid....
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| 27. | Pollution A Deadly Effect on the Environment
... Man is going to destroy the environment through land, air, and water pollution.
Land pollution is one of the ways that contribute to destroying the environment. ...
Land pollution also leads to air pollution. Most people think that air pollution can only be caused outdoors, but air po...
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| 28. | sulphuric acid
Sulphuric acid (H2SO4), or oil of vitriol as it is commonly known, is a strong, odourless, oily, corrosive liquid that is colourless although, in some cases, it was found to be a pale yellow colour. Sulphuric acid is one of the most important acids produced as it is used in many industrial processes...
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| 29. | Cat in the rain
... )
If the couple is on vacation, the weather certainly doesnt care: its raining, which is why the word "rain" is in the title. ... )
The woman sees a cat hiding under a table in the rain, and says that shes going to rescue it. Her husband says hell get the cat, but he doesnt move from the be...
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| 30. | Neutralising excess stomach acid
Aim:
To find which powder, of four, is best for neutralising excess stomach
acid.
Prediction:
With stomach pain relief powders being a consumer product, I
predict that the best cure for neutralising a build up of stomach acid
will be t...
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| 31. | marble and acid
INTRODUCTION The term marble is applied commercially to any limestone or dolomite taking polished. Marble is a metamorphic rock composed of recrystallized calcite or dolomite. Marble is formed from limestone by heat and pressure in the earth’s crust. ... Impurities present in the limestone durin...
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| 32. | Rain CAme By Grace Ogot
... The young couples flee as the rain falls at last.
In the short story The Rain Came by Grace Ogot, the protagonist, Oganda, is a hero to her Luo village. ... Let me die, let them have rain” (Ogot 36). Even though Oganda is a young girl, she still agrees that having rain a...
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| 33. | hydrochloric acid
The chemical compound hydrochloric acid, also known as hydrogen chloride, is a colorless, poisonous gas with an unpleasant, acrid odor. Each molecule of hydrochloric acid is composed of a one-to-one ratio of hydrogen and chlorine. ... However when dissolved in water, you have hydrochloric acid. Bec...
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| 34. | Rate of Reaction Hydrochloric acid Magnesium ribbon
Rate Of Reaction Between Hydrochloric Acid And Magnesium Ribbon
Introduction:
In this experiment I will be analysing the rate of reaction of five different strengths of acid. ...
There are four main variables that could effect the rate of reaction, these are:
1. ... This could change th...
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| 35. | Rates of reactions between HCL and magnesium ribbon
Aim
I plan to investigate the effect of concentration of acid, in the reaction between dilute hydrochloric acid and magnesium ribbon. ... Some reactions are very fast, for example; the formation of silver chloride precipitates when silver nitrate and hydrochloric acid solutions are mixed. In thi...
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| 36. | Environment
Air is the ocean we breathe. Air supplies us with oxygen, which is essential for our bodies to live. Air is 99.9% nitrogen, oxygen, water vapor and inert gases. Human activities can release substances into the air, some of which can cause problems for humans, plants, and animals. There are several m...
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| 37. | Hydrochloric acid and calcium carbonate
In this experiment, I am investigating the rate of reaction between marble chips (calcium carbonate) and hydrochloric acid. ... Next, I will measure out 20cm³ of hydrochloric acid, using a 25ml measuring cylinder and then pour it into a beaker. ... After that, I will heat the hydrochloric acid ran...
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| 38. | Weak Acid Strong Base and Weak Base Strong Acid Titrations
INTRODUCTION
In 1884, Svante Arrhenius defined an acid as a material that can release or donate a proton of hydrogen ion (H+), and a base is a material that can accept a proton when dissolved in water. [Park, 1997] In the Arrhenius concept, strong acids and bases completely ionize in solution ...
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| 39. | With the aid of diagram describe and explain the nutrient cycle in the region of tropical
The tropical rain forest is highly diverse, with many species of plants and animals. ... Tropical rain forest has the most complex ecosystem in terms of the number of components, the structure and the complexity of the interactions.
The climate in tropical rain forest is hot throughout the year...
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| 40. | HOW DOES CONCENTRATION OF ACID AFFECT THE RATE OF REACTION
Aim: To carry out an investigation on whether the rate of reaction changes when different concentrations of acid are combined with sodium thiosulphate.
Prediction: I believe that by diluting the hydrochloric acid (decreasing the concentration), the rate of reaction would take place slower each ti...
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