Essays Tagged: "Zinc"

Sacred Cow - Vegetarianism

he beginning of time, humans have been consuming animals. A vegetarians diet lacks energy, calcium, zinc, and vitamins (B-12 and D). Without supplements, severe medical problems can arise. Also, those ...

(3 pages) 129 2 2.6 Oct/1996

Subjects: Humanities Essays > Health & Medicine


calcium, magnesium, iron, iodine etc. Thenthe trace elements such as copper, manganese fluorine andzinc.Once of the most important is calcium. Calcium is used tobuild up your bones. It also helps to ... ed. men have more iron inthere blood stream then women. You should have about 18 mgof iron each day.Zinc is required to keep your blood sugar levelcontrolled. You also need to so you can taste and hea ...

(1 pages) 53 0 4.0 Oct/1996

Subjects: Science Essays > Biology

Classificaion of Scandium and Zinc are not transitional metal base on their general chemistry and properties

. The transitional elements typically have an incompletely filled d level however, in group 12 (the zinc group) has a d10 configuration, an complete d shell, compounds of these elements are not typica ... bidentate and the remaining NO3- unidentate giving an coordination number of 9.General chemistry of zinc (Group 12 element)Zinc: {Ar} 3d10 4s2Zn show few of the properties associated with a typical tr ...

(8 pages) 59 0 4.4 Apr/2002

Subjects: Science Essays > Chemistry

Copper and Molybdenum Deposits in the United States

ant additive in harder, more useful metals such as bronze (copper+tin; 2500 B.C.) and brass (copper+zinc; 0 A.D.). The growth of copper production in the United States has been a relatively recent occ ... 8 million t of copper has been produced at this mine in addition to large amounts of silver, gold, zinc, manganese, and lead. Vein deposits are associated with replacement deposits and with other sit ...

(11 pages) 45 0 3.8 Dec/1996

Subjects: Science Essays > Earth Sciences > Geography

Differences and Effects of Natural and Synthetic Fertilizers

ther elements and compounds required for sufficient growth, such as iron, boron, manganese, copper, zinc, molybdenum and chlorine. In some cases, these nutrients are found to be missing in soils, but ...

(3 pages) 48 0 5.0 Jan/1996

Subjects: Science Essays > Biology

Should Manganese Nodules be Exploited as a Source of Metal? Should we continue exploiting manganese nodules as a source of metal, taking into consideration all the moral aspects.

ferent minerals, containing sources of useful metals such as manganese, iron, copper, nickel, lead, zinc and cobalt. The nodules are formed by about 24% of manganese, 15% iron, 1.5% of nickel and smal ...

(7 pages) 61 0 3.7 Dec/2002

Subjects: Science Essays > Chemistry

Which fruits can power a light best from the acidic level in them.

MATERIALS1. copper electrode2. zinc electrode3. multimeter capable of measuring voltage4. flashlight light bulb 1.2 volts5. screw b ...

(2 pages) 40 1 3.7 May/2003

Subjects: Science Essays > Biology

Biography on Robert Goddard.

he too could produce sparks by scuffing his feet against the carpet. He than thought, if he rubbed zinc from a battery on his shoes, than scuffing his shoes on gravel and jumping off he could jump lo ...

(4 pages) 29 0 3.0 Sep/2003

Subjects: Science Essays > Space

Ever Ready vs. Duracell: The battle for portable power The essay analyses a case study on Ever Ready losing market share.

ming competitive in the growing market of alkaline batteries. Its long dominance over the shrinking zinc battery market will not be enough to meet the needs of investors and stay competitive in the UK ... ompete with Duracell's alkaline products, leaving the previous marketing strategy of protecting the zinc product line behind. Consumers are looking for durable batteries, therefore the Energizer produ ...

(12 pages) 122 1 3.8 Feb/2004

Subjects: Businesss Research Papers > Case Studies

Descirbe Potassium as deficiency

as calcium and sodium. Whereas we need very little amounts of trace minerals, for instance iron and zinc. Although this is this case each mineral whether it be a macro mineral or a trace mineral is ju ...

(2 pages) 41 2 4.5 Nov/2004

Subjects: Science Essays > Biology

Harry S Truman-The Early Years

s grandmother's farm with his parents and took over running the family farm.He had an interest in a zinc and lead mine in Oklahoma--the venture failed with a loss of $2,000. He also invested in oil le ...

(2 pages) 15 0 5.0 Jul/2005

Subjects: History Term Papers

Harry S Truman--The Early Years

andmother's farm with his parents and took over running the family farm.Truman had an interest in a zinc and lead mine in Oklahoma--the venture failed with a loss of $2,000. He also invested in oil le ...

(2 pages) 15 0 3.0 Aug/2005

Subjects: History Term Papers

Oxidation - Reduction. Range the metals copper, lead, silver and zinc together with hydrogen to find the strongest reducing agent.

EXPERIMENT 1:Aim:To range the metals copper, lead, silver and zinc together with hydrogen. Start with the strongest reducing agent.Hypothesis:The nobler a metal i ... thesis:The nobler a metal is, the worse reducing agent.Apparatus/requirements:Sandpaper, strips of; zinc, lead, silver and copper, solutions containing aqueous; Zn2+, Pb2+, Cu2+ and Ag+ ions (0.2 M), ... + +2AgPb(s)+Cu2+(aq)->Pb2+ +CuPb(s)+2Ag+(aq)->Pb2+ +AgCu(s)+2Ag+(aq)->Cu2+ +2AgConclusions:Zinc is the strongest reducing agent. Zinc loses electrons most easily and is therefore oxidised. Af ...

(3 pages) 26 0 5.0 Sep/2005

Subjects: Science Essays > Chemistry

Primary Forming, Casting, The Range of Materials Applicable and the Process

sually more resistant to corrosion than ferrous metals.Examples are aluminium, copper, brass, lead, zinc, tin, magnesium, nickel and titaniumFerrousMetals which contain iron. They may have small amoun ... ings are usually made of metals with a low melting temperature such as aluminium and its alloys and zinc based alloys such as 'Mazak'. This process is widely used for the manufacture of car door handl ...

(13 pages) 42 0 4.0 Feb/2006

Subjects: Science Essays > Engineering

Food Myth: Are soy products really a healthy alternative?

oybeans also have the benefit of being perceived by the general consumer as a great source of iron, zinc, protein and calcium and have the extra benefit in being low in cholesterol.Facts not know by m ... difficult to digest.Many soy product consumers believe that soybeans are a great a source of iron, zinc, protein and calcium, but they may not know what important nutrients the soybeans lack. Soybean ...

(1 pages) 15 0 0.0 Mar/2006

Subjects: Humanities Essays > Health & Medicine

Effect of Compaction on Plant Growth and Nutrient Uptake

of the main reasons which limit a plants uptake of vital nutrients like potassium, phosphorous and zinc, which are usually absorbed through the roots or root hairs of the plant. If the soil is compac ...

(4 pages) 21 0 0.0 Jun/2006

Subjects: Science Essays > Earth Sciences > Geology & Geosciences

Density Lab Essay

Abstract:The experiment was on the density of the metals: Copper, Zinc, and a mystery metal. The mystery metal was discovered to be Aluminum. The density of Copper an ... ng a penny. Through careful experimenting and math the deduction was made that 87% of the penny was Zinc and the other 13% was Copper.Introduction:The purpose of this lab was to do three things: 1. To ... he purpose of this lab was to do three things: 1. To calculate the density of three metals: Copper, Zinc, and a Mystery Metal.2. To identify the unknown metal. 3. To calculate the percentage compositi ...

(4 pages) 28 0 0.0 Nov/2006

Subjects: Science Essays > Chemistry

Collision Rate investigation

ut of 4 metals is the best for the investigation. These metals are Mg (Magnesium), Cu (Copper), Zn (Zinc) and Ca (Calcium). To do this i will investigate the reaction with different concentrations of ... y on how I will go about my experiment.Apparatus:- 3 Magnesium Strips- 3 Copper Strips- 3 Pieces of Zinc- 3 Pieces of Calcium- 12 Test Tubes- 120ml of 0.25M, 0.50M, 1.0M, 2.0M and a 3.0m each of Hydro ...

(6 pages) 15 0 3.7 Nov/2006

Subjects: Science Essays > Chemistry


s, such as corn, wheat, and other grains. The U.S. and Canada both mine goods such as coal, copper, zinc and other goods. With all this mining it makes for a lot of good manufacturing in the U.S. and ... uits and other foods.4.North Africa and Southwest Asia Many items are mined here such as phosphate, zinc, and 6 other kinds of minerals.With these minerals, this region has also a very diverse manufac ...

(2 pages) 566 0 3.7 May/2001

Subjects: Science Essays > Chemistry


e climate there is usually mostly temperate. There natural resources are there fertile plains lead, zinc, tin, copper, ore, petroleum, and uranium. Argentina's population is about 37,384,816. Argentin ...

(2 pages) 17 0 0.0 Oct/2001

Subjects: Businesss Research Papers