conduct an electric current. Base Property #4: Bases conduct an electric current. This is a common property shared with salts. Acids‚ bases and salts are grouped together into a category called electrolytes‚ meaning that a water solution of the given substance will conduct an electric current. Non-electrolyte solutions cannot conduct a current. The most common example of this is sugar dissolved in water. So far‚ the properties have an obvious relationship: taste‚ color change‚ mutual destruction
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LYMPHATICS CARDIOVASCULAR SYSTEM Structure • heart‚ arteries‚ arterioles‚ capillaries‚ venules‚ veins Functions • transportation (oxygen‚ carbon dioxide‚ nutrients‚ wastes‚ wastes hormones) • regulation (pH‚ body temperature‚ temperature fluid & electrolytes) Principle arteries and veins CARDIOVASCULAR SYSTEM • Heart: pumps blood • Artery: vessel leaving the heart (Arteries take blood AWAY from your heart) • Vein: vessel going to the heart • Capillaries: vessels in beds for b d f exchange of
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ranks higher than seven on the pH scale. An example of a base substance is hand soap. A neutral substance ranks a seven on the pH scale and has equal concentrations of H+ and OH-. An example of this is pure water. Electrolytes are current conducting ions. An example of an electrolyte is Na+. A buffer is a set of chemicals that can keep the pH of a stable by alternately donating and accepting ions that contribute to pH. An example of this is carbon dioxide. A salt is a compound that dissolves
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of dialysis have been known to have several homeostatic imbalances. One of the major effects is electrolyte imbalance and this usually lead to different types of conditions. One of these condition known as hyperkalemia may occur if calcium levels exceed the amount that can be excreted. Another condition that may arise in the course of dialysis is arrhythmias (Elsevier‚2013). This can lead to electrolyte imbalance and changes in homeostasis of acid and base. Other issues that can arise related to increased
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where reduction occurs. Electrons are “pulled” towards the cathode. – These electrodes (anode and cathode) are linked by an external wire which enables electron flow between the two solutions. – Salt bridge: A salt bridge contains non reactive electrolyte which prevents direct contact of the oxidising and reducing agents as well as stopping the cell from polarising. A primary cell is an electrochemical cell or battery that cannot be recharged and has a reaction that can’t be reversed for any number
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reason why chemical reactions happen is that one element is more reactive than the other. Oxidation is a loss of electrons and reduction is a gain of electrons. Each cell consists of two metal electrodes (cathode (-) and anode (+)) and at least one electrolyte solution (solution which can conduct electricity). Oxidation occurs at the anode and reduction occurs at the cathode. (Gary L. Bernard) Oxidation either removes negative ions or produces positive ions to the solution at the anode. Reduction does
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DIABETIC KETOACIDOSIS INTRODUCTION Diabetic ketoacidosis (DKA) is a very serious complication of diabetes mellitus‚ a metabolic disorder that is characterized by hyperglycemia‚ metabolic acidosis‚ and increased body ketone concentrations. The most common causes of DKA are infection and poor compliance with medication regimens. Other causes include undiagnosed diabetes‚ alcohol abuse‚ and a multitude of medical conditions such as cerebrovascular accident (CVA)‚ complicated pregnancy‚ myocardial
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an electric cell‚ is a device that produces electricity from a chemical reaction. In a one cell battery‚ you would find a negative electrode; an electrolyte‚ which conducts ions; a separator‚ also an ion conductor; and a positive electrode. Batteries are made of magnesium dioxide‚ graphite‚ electrolytes‚ zinc oxide and a paper soaked in an electrolyte solution. All of this is sealed in a insulated tube for safety. http://answers.ask.com/consumer_electronics/other/what_are_batteries_made_of Batteries
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Atrial fibrillation What is atrial fibrillation? Atrial fibrillation is a very common heart disease characterized by an abnormal heart rhythm. Patients may experience palpitations (heart pounding)‚ chest pain‚ dizziness‚ and loss of consciousness. The heart rate may be elevated (>100)‚ slow (<60)‚ or within the normal range. This condition can be very serious‚ leading to a drop in blood pressure and even stroke. Given its seriousness‚ it is important for patients to educate themselves about
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cholerae) usually spread through contaminated water. The bacteria‚ which are found in fecal-contaminated food and water and in raw or undercooked seafood‚ produce a toxin that affects the intestines causing diarrhea‚ vomiting‚ and severe fluid and electrolyte loss. This overwhelming dehydration is the outstanding characteristic of the disease and is the main cause of death. Cholera has a short incubation period (two or three days) and runs a quick course. In untreated cases the death rate is high‚ averaging
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