What is the chemical symbol of arsenic, and what group/family does it belong to? The symbol of Arsenic is ‘As’ and it belongs to group 5 (also known as group 15 or pnictogens or p-block) of elements (Meyer, n.d.)…
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Solve for the minimum volume of soil that will be excavated in cubic yards? Volume = 30×55×3 =4950 cubic feet 1 cubic ft= 0.037037037 yards Volume=183 cubic yards Assumption: The value is taken correct to 3 significant figures. If each dump truck can transport 18 cubic yards, determine how many dump trucks loads will be transported? For calculation purposes, add a 15% fluff factor (add to the volume that will be transported). Volume including fluff factor = 183+183(.15) =210.45 cubic yards number of dump truck loads required=210.45/18=11.7 =12 truckloads If the bulk density of soil is 1350 kg/m3 (84.3 lb/ft3), solve for the weight of the soil that will be transported to a disposal site in kilograms? 1 cubic yard= 0.764554858 cubic meters 210.45 cubic yards=210.45×0.764554858 m^3 Volume transported=161 m^3 Mass of soil transported=density ×volume =1350×161 =217350 kg
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(“Chemistry Essay Example | Topics and Well Written Essays - 250 words - 2”, n.d.)
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(Chemistry Essay Example | Topics and Well Written Essays - 250 Words - 2)
“Chemistry Essay Example | Topics and Well Written Essays - 250 Words - 2”, n.d. https://studentshare.org/chemistry/1700147-chemistry.
Even households generate hazardous waste from items such as batteries, used computer equipment, and leftover paints or pesticides.
The waste can harm humans, animals, and plants if they encounter these toxins buried in the ground, in stream runoff, in groundwater that supplies drinking water, or in floodwaters, as happened after Hurricane Katrina.
One mole of beryllium weighs 9 grams, therefore we have 0.1 mole of beryllium if the mass is 0.9, one mole of oxygen weighs 16 grams therefore we have 7.3/16 moles of oxygen and finally we have 4.5 grams of aluminium therefore we have 4.5/27 moles of aluminium.
The Carbon atom closer to the viewer is called the ‘proximal’ and the one further the ‘distal’ atom.
All staggered conformations have lower strains compared to eclipsed conformations. The staggered (anti) conformation is the most stable
ton in his atomic theory states that atoms of any one element are all exactly like in every respect including masses but different from atoms of every other element. According to this theory since ethyl alcohol and dimethyl ether have the same composition by masses and exactly
These brain functions are responsible for mental, emotional and motor skills. Irregular activity on neuro-transmitters in the brain would be one of the reasons for mental and emotional disorders that may affect person’s emotional and physical behavior. Changes in
t to be accurate because the minimum measure of mass according to the apparatus is 0.0001, therefore if the measure was exactly 11.439 g then this should have been written as 11.4390 g.
The Millikan experiment is used to measure the electric charge of electrons by carefully
The American Thyroid Association (2005b) added that there is no single best treatment for patients with hyperthyroidism since the treatment may depend on factors such as age, type and severity of hyperthyroidism,
They are used as catalysts, electrolytes and solvents in a number of industries. This paper will try to enumerate the importance of ionic liquids and their applications in pharmaceutical and other industries.
In comparison to molecular liquids
Q4. NO+ ligand would form a bent i.e. V-shaped geometry in a metal complex. More electrons are pulled to N in the radical hence the metallic ion would be attracted to the partially negatively charged N atom. The lone pair electron in the N atom cause attraction of positively
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