Chemistry

If matter is neither created nor destroyed, why cant we just go directly from grams of reactant to grams of product?
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What do you think is meant by the term pseudoscience?
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.The pH is 3. What is [H+]? *1 point0.0010.011001000
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All of the following use digitized signals to encode and transmit information EXCEPT:Select one:Fiber optic cablesRecord playersWi-Fi devicesFlat screen TVs
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If a hypothetical future Earth has increased the amount of radiation emitted to 604 W/m, calculate the hypothetical global surface temperature in degrees Kelvin and then in Celsius
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In the water cycle diagram above, which letter representsgroundwater?Select One:QSTR
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What is the poH of a6.5 x 10-12 M OH solution?pOH = [?]
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Icp need help of available
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Stoichiometry is based on the _______________________________
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After a copper smelter begins operation, local downwind populations of plants begin to adapt to the resulting air pollution. Scientists document, for example, that the acid tolerance of several plant species has increased significantly in the polluted area. This is an example of...artificial selectionover productionselective breedingnatural selection
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Please answers only , 100 pts and brainliest, wrong answers will be reported.What is the molarity of 9.8 gram Sulfuric Acid in 500 mL of water?
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please do this guys i need a lot of help please!
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Help with as many as possible is appreciated! :)Calculate the molarity of the solutions described below.a. 10.0 g of sodium chloride is dissolved in 2.0 L of solution.b. 52.5 g of sugar (C12H22O11) s dissolved in 1.0 L of solution.c. 120 g of aluminum sulfate is dissolved in 10.0 L of solution.d. 1.75 g of caffeine (C8H10N4O2) is dissolved in 0.100 L of solution.
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Dysphagia is the name of a disorder that disruptsthe swallowing reflexBthe absorption of essential nutrientsacid levels in the stomachCDthe stomach lining
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What is the total oxidation state of the fluorine atoms
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An object becomes positively charged when ita loses electrons.b loses protons.c gains electrons.d gains neutrons.
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What is similar about igneous rock and metamorphic rock formation?
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Heat that is transferred by the movement of currents within fluid is called
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What is the answer ?
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50 POINTS!!!! Please Help I'm being timed and this would help so much! 50 POINTS!!!!Calculate the hydrogen ion concentration [h+] for the aqueous solution in which [oh-] is 1 x 10^-2 mol/l. Is this solution acidic, basic, or neutral? Show your work.
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How many grams of H20 will be formed when 32.0 g H2 reacts with 16.0 gO2? *2H2 + O2 + 2H2O9.00 g16.0 g18.0 g32.0g
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6.) (5 points) Assume you have a system with a fixed pH of 4.0. It is well buffered and therefore the pH will not change. What is the predominant state of a molecule with a dissociable proton with a pKa of 5.2 if it is introduced to that system (protonated or deprotonated)
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5. Which statement is NOT true?a. Light travels with or without a medium.b. Sound must have a medium to travel through.c. Both light and sound must have a medium to travel through.d. Light travels faster than sound.
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Why is 4,4dimethyl hexane name is wrong
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