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What is the incentive-sensitization theory of addiction?

asked Jan 20 in Psychology by Lowell36338 (3.2k points)

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A droplet of water weighing 0.2 grams is placed on the surface of a perfectly clean glass plate. The diameter of the droplet is measured to be 5 mm. Calculate the surface tension of water in dynes/cm.

asked Jan 22 in Surface Chemistry by TahliaEvatt8 (2.2k points)

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A steel pipe is in contact with a copper pipe in a galvanic couple, with the steel pipe acting as the anode. The corrosion current density of the steel pipe in the couple is 0.008 mA/cm². Determine the rate of corrosion of the steel pipe, assuming that the density of steel is 7.8 g/cm³ and the thickness of the pipe is 2.5 mm. Also, calculate the time taken for the pipe to corrode completely, assuming an initial mass of 5 kg.

asked Jan 22 in ElectroChemistry by TatianaSteil (2.3k points)

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A sample of an unknown compound was analyzed using elemental analysis, and the results showed that the compound contains 12.8% hydrogen, 49.2% carbon, and 38.0% oxygen by mass. What is the empirical formula of the compound?

asked Jan 22 in Analytical Chemistry by CaridadBaxte (2.6k points)

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What is the pH of a 0.1 M solution of nitric acid (HNO3) assuming complete ionization?

asked Jan 21 in Inorganic Chemistry by GrettaRowan (2.0k points)

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Identify the number of chiral centers present in (2R,3S)-butane-1,4-diol and draw all possible stereoisomers for the compound.

asked Jan 21 in Organic Chemistry by MaryellenGra (3.5k points)

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A question for the student to solve could be: If a certain equilibrium reaction is exothermic, and the concentration of reactant A is increased while the concentration of product B is decreased, predict the change in the equilibrium constant value (K) and explain your reasoning by applying Le Chatelier's principle.

asked Jan 22 in Chemical reactions by Francisca504 (2.5k points)

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Identify the structural formula and functional group of a compound that has a benzene ring with two methyl groups attached in the ortho positions and a nitro group attached in the meta position.

asked Jan 21 in Organic Chemistry by LorenzaOrell (2.8k points)

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Determine the oxidation state of the transition metal in potassium manganate (VII) and explain how you arrived at your answer.

asked Jan 21 in Inorganic Chemistry by VictorGanz19 (2.4k points)

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How many different isomers can be obtained from hexane (C6H14)? Provide the structural formula of each isomer.

asked Jan 21 in Organic Chemistry by PatsyRanson (2.0k points)

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What is the oxidation state of nitrogen in N2O5?

asked Jan 21 in Inorganic Chemistry by DeenaKuhn606 (1.9k points)

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When did the scientific study of psychology begin?

asked Jan 20 in Psychology by RenaCastella (2.1k points)

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What is the oxidation state of sulfur in the compound H2SO4?

asked Jan 21 in Inorganic Chemistry by JeffreyCone5 (2.1k points)

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What is the name of the following organic compound?CH3CH2CH2CHO

asked Jan 21 in Organic Chemistry by RaleighAckle (2.0k points)

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What is the attachment theory by John Bowlby?

asked Jan 20 in Psychology by NilaBody107 (2.0k points)

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Which spectroscopic technique in organic chemistry would be most effective for differentiating between two compounds with the same molecular formula but different functional groups?

asked Jan 21 in Organic Chemistry by StephaineCro (2.5k points)

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1 answer 62 views

According to the cognitive-behavioural theory, how does negative self-talk contribute to anxiety?

asked Jan 20 in Psychology by HaydenSpeigh (1.8k points)

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1 answer 9 views

A solution contains 0.05 M AgNO3 and 0.10 M KCl. A silver electrode is dipped in the solution and a potential of 0.53 V is measured against a standard hydrogen electrode. Calculate the concentration of Ag+ ions in the solution.

asked Jan 22 in ElectroChemistry by ChristenaGra (2.3k points)

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1 answer 10 views

A researcher is working on the desorption of a specific gas from a metal surface. The enthalpy of desorption for this process is -23.4 kJ/mol. If the researcher desorbs 0.75 moles of the gas, how much heat is released (or absorbed)?

asked Jan 22 in ThermoChemistry by LillyHoskins (2.4k points)

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1 answer 49 views

What is the product(s) formed when 1-bromo-2-methylcyclohexane undergoes an E1 mechanism of elimination?

asked Jan 21 in Organic Chemistry by MarcyWoolery (3.3k points)

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