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Chemistry
Chemistry
High School
what is the normal ratio of bicarbonate to dissolved co2 in arterial blood? group of answer choices 20:1 1:5 1:10 40:1
Chemistry
High School
a solid sample of copper is an excellent fondue to if electric current which type of chemical bonds are in the sample
Chemistry
High School
What product is formed when the compound is treated with K2Cr2O7? If no reaction occurs, draw the reactant.
Chemistry
High School
the concentration of stomach acid, hcl, is approximately 0.10 m. what volume of stomach acid contains 0.00025 g of hcl?
Chemistry
High School
Europe and North America are drifting apart from each other at a rate of 0.438 cm every year. How many years are required for the continents to drift 1.00 meter apart?
Chemistry
High School
The diels-alder mechanism between a diene and a dienophile is_____.a. Concertedb. Nonconcerted
Chemistry
High School
how does 0.5 m sucrose 9mlecular mass 342) solution compare to 90.5 m glucose (molecular mass 180) solution
Chemistry
College
Which orbital diagram represents lithium (atomic number = 3)?
Chemistry
High School
describe or determine the effect of temperature of temperature on reaction rate and activation energy for a reaction using the arrhenius equation
Chemistry
High School
acqeous hydrocloric acid reacts with sodium hydroxide to prodcue acqueous sodium chloride and liquid water. what is the theoretical yield of water formed from the reaction of 34.3 g of hyrochloric acid and 72.6 g of sodium hydroxide
Chemistry
High School
lactate and pyruvate are byproducts of group of answer choices anaerobic glycolysis aerobic glycolysis anaerobic oxidation of fats creatine
Chemistry
High School
what is one low-tech method currently available to actively remove co2 from the air?
Chemistry
High School
Calculate the number of moles o2 that would be produced if 1. 62 mol of H2O2 were to undergo decomposition
Chemistry
High School
1. the pinakbet that your mother cooks is an example of a _A. solution B. mixture C. solvent D. solute2. which is NOT a characteristic of heterogeneous mixture?A. the substances are evenly mixedB. the substances are completely dissolved in waterC. the substances that are mixed cannot be identifiedD. the substances can still be identified from the mixture
Chemistry
College
A bottle of nail polish remover containing ethyl acetate was spilled in an unventilated room measuring 9.00 m 6.00 m 3.00 m. After some time had passed, it was determined that 8.701 g of ethyl acetate had evaporated. Calculate the concentration of ethyl acetate in milligrams per cubic meter.
Chemistry
High School
based on results presented in the passage, researchers hoping to alter the appearance of sgbp while maintaining its function as a cp providing a colored appearance would most logically choose to mutate which sgbp residue?
Chemistry
High School
fluoride ion is added to drinking water at low concentrations to prevent tooth decay. what mass of sodium fluoride (naf) should be added to 750 l of water to make a solution that is 1.5 ppm in fluoride ion?
Chemistry
High School
How many grams are in 87g of potassium bromide?
Chemistry
High School
a chemist determined by measurements that moles of magnesium participated in a chemical reaction. calculate the mass of magnesium that participated in the chemical reaction.
Chemistry
High School
How many liters does one mole of gas occupy at STP?
Chemistry
College
PC15 (s) + HO(1)POCl3 (1) + 2HCl(aq)When 58.15 g of phosphorus pentachloride reacts with water, what massof hydrogen chloride will be produced?Round your answer to the hundredths place. If needed, enter scientificnotation with the "e". For example, 1.44x107 would be entered as 1.44e7.
Chemistry
High School
what metal hydride reducing agent is used in this experiment? what product would be formed if catalytic hydrogenation with h2 were used?
Chemistry
High School
Prepwork: **Find the mass of a sample of CCl4 with 5.90 x 1020 particles.
Chemistry
High School
Which substance is the limiting reactant when 2.0 g of sulfur reacts with 3.0 g of oxygen and 4.0 g of sodium hydroxide according to the following chemical equation: 25() + 3 O2(g) + 4 NaOH(aq) 2 Na2SO4(aq) + 2 H2O(l) 049) ONaOH(ag) O S(s) None of these substances is the limiting reactant
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