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Of the listed items, water and carbon dioxide are compounds, not elements. The others (mercury, iron, helium, oxygen, carbon, and bromine) all have more than one isotope. So none of the listed materials have "one type of atom."
Gas transportation
Red blood cells take carbon dioxide (CO2) away from body tissues. The carbon dioxide is then transported to the lungs where it can be exhaled.
Capillaries carry carbon dioxide away from cells where it reacts with water to form a bicarbonate ion which is more dissolvable in blood than CO2.
All batteries regardless of the type (alkaline, lead acid, mercury, gel cell) have a polarity. AAAA, AAA, AA, B, C, D batteries the top tip is positive the bottom flat portion is negative.
AAA type alkaline battery is a carbon-zinc battery; the tension is 1,5 V. The electrolyte is ammonium chloride as a paste.
Neutrophils
Galvanic cells are classified as either primary or secondary. A primary cell is used once and then thrown away when exhausted. A common example is an alkaline dry cell. Alkaline cells are a subset of galvanic cells. Galvanic cells are more generic and use any metals. Alkaline batteries are a type of disposable battery or rechargeable battery dependent upon the reaction between zinc and manganese (IV) oxide (Zn/MnO2). The alkaline battery gets its name because it has an alkaline electrolyte of potassium hydroxide, as opposed to the acidic electrolyte of the zinc-carbon batteries which are offered in the same nominal voltages and physical size.
The Palisade Mesophyll Cell.
ethanol and carbon dioxide are responsible for making bread rise. which is this type of cell respiration called?
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Of the listed items, water and carbon dioxide are compounds, not elements. The others (mercury, iron, helium, oxygen, carbon, and bromine) all have more than one isotope. So none of the listed materials have "one type of atom."
Elements with only one type of atom: Mercury (Hg), Iron (Fe), Helium (He), oxygen (O or O2), bromine (Br or Br2) Elements with more than one type of atoms: Water (H2O), carbon dioxide (CO2)
Red Blood Cells
Gas transportation
A battery can actually be made into any size, but very small batteries would be drained in a matter of seconds and are thus useless. Since zinc-carbon batteries contain less electrical energy per volume compared to an alkaline battery they are normally used for the larger sizes of batteries. Rayovac has published a graph where the zinc-carbon and alkaline batteries have been compared. It shows that the alkaline battery works just as good after 17 hours of use as the zinc-carbon battery does after only 8 hours of use. (http://www.rayovac.com/technical/pdfs/pg_battery.pdf) Eurobatt claims that alkaline batteries can have 4-15 times longer lifetime than the zinc-carbon type. But it isn't mentioned under what type of conditions this is. (http://www.eurobatt.net/index7201.html?page=213&l=1)