Chemistry concepts and calculations

1. Circle/indicate the correct answers in the following paragraph(s): When a sma

1. Circle/indicate the correct answers in the following paragraph(s): When a small amount of force is applied to a rock, it behaves in an elastic/ductile/brittle (circle one) mann…

1. Classify HClO4 as a strong, weak, or nonelectrolyte, and briefly justify your

1. Classify HClO4 as a strong, weak, or nonelectrolyte, and briefly justify your answer. 2. Classify FeCO3 as a strong, weak, or nonelectrolyte, and briefly justify your answer. 3…

1. Classify each of the following as a pure substance or a mixture,if it is a mi

1. Classify each of the following as a pure substance or a mixture,if it is a mixture, state whether it is heterogeneous or homogeneous: (a)concrete,(b) tomato juice,(c)marble,(d)…

1. Classify each of the following reactions as precipitation, acid-base neutrali

1. Classify each of the following reactions as precipitation, acid-base neutralization, or oxidation- reduction reaction: a) Niclz(aq) + NaS(aq) Nis(s)+2 NaCI(aq) b) Ca(OHXag)+2HN…

1. Classify the following as discrete molecules or solid state compounds with ex

1. Classify the following as discrete molecules or solid state compounds with extended structures Tio2 CsH12 SiH4. GaAs. 2. Which of the following combinations of atoms do you exp…

1. Classify the following compounds, as used in aqueous chemistry. That is if th

1. Classify the following compounds, as used in aqueous chemistry. That is if thrown in water what do you get. The following is a list of possibilities, for each classification. T…

1. Classify the following statements using the terms of the Scientific Method: a

1. Classify the following statements using the terms of the Scientific Method: a) That tree has shiny leaves. …

1. Classify the substances according to the strongest solute-solvent interaction

1. Classify the substances according to the strongest solute-solvent interaction that will occur between the given substances and water during dissolution. Classify CuCl2, CuSO4, …

1. Clearly and carefully EXPLAIN how each of the following errors will affect th

1. Clearly and carefully EXPLAIN how each of the following errors will affect the calculated percent ion in your known (higher, lower, not affected). a) Some of the KMnO4 solution…

1. Clearly and carefully explain how each of the following errows will affect th

1. Clearly and carefully explain how each of the following errows will affect the calculated percent iron in your unknown. (higher, lower, not affected) A. Some of the KMnO4 soult…

1. Clearly and neatly draw the monobromination products from the radical halogen

1.Clearly and neatly draw the monobromination products from the radical halogenation of the molecule at the carbons indicated below (be sure to indicate correct stereochemistry). …

1. Co-55 is radioactive. Which mode of decay would be expected for this nucleus?

1. Co-55 is radioactive. Which mode of decay would be expected for this nucleus? A. Positron decay/electron capture B. Proton decay C. Beta decay D. Alpha decay E. Neutron decay 2…

1. CoCl,\'(aq) (blue) + 6 H,O(1) Co(H,Oh!\"(aq) (pink) + 4 Cl-(aq) Reagents: 0.1

1. CoCl,'(aq) (blue) + 6 H,O(1) Co(H,Oh!"(aq) (pink) + 4 Cl-(aq) Reagents: 0.1 M CoCl2 in 95% ethanol (Measure 3 mL into a clean, dry test tube) Caution: CoCl, in ethanol is flamm…

1. CoCl,\'(aq) (blue) + 6 H,O(1) Co(H,Oh!\"(aq) (pink) + 4 Cl-(aq) Reagents: 0.1

1. CoCl,'(aq) (blue) + 6 H,O(1) Co(H,Oh!"(aq) (pink) + 4 Cl-(aq) Reagents: 0.1 M CoCl2 in 95% ethanol (Measure 3 mL into a clean, dry test tube) Caution: CoCl, in ethanol is flamm…

1. Coal mines are common in Pennsylvania. What was the environment of Pennsylvan

1. Coal mines are common in Pennsylvania. What was the environment of Pennsylvania in the past compared to today 2. There is a thick layer of limestone with many shells under Chic…

1. Code transformation Before a program written in C can be executed on a comput

1. Code transformation Before a program written in C can be executed on a computer, what step is required to be done first? Briefly explain this step. 2. Basic I/O in C Write a fe…

1. Comment on the effect a variation from these assumptions will have on the sol

1. Comment on the effect a variation from these assumptions will have on the solubility of calcium carbonate a. the pH of the buffer does not remain at its set point but drifts lo…

1. Comment on the suitability of running the infrared spectrum under each of the

1. Comment on the suitability of running the infrared spectrum under each of the following conditions. IF there is a problem with the conditions given, provide a suitable alternat…

1. Comment on the suitability of running the infrared spectrum under each of the

1. Comment on the suitability of running the infrared spectrum under each of the following conditions. IF there is a problem with the conditions given, provide a suitable alternat…

1. Commerchaol lye is an alkaline mixture that contains mainly sodium hydroxide,

1. Commerchaol lye is an alkaline mixture that contains mainly sodium hydroxide, but major impurities include sodium chloride, sodium carbonate, sodium chlorate, sodium sulfate, p…

1. Common commercial hydrochloric acid is an aqueous solution that is 38% HCl by

1. Common commercial hydrochloric acid is an aqueous solution that is 38% HCl by mass, with a density of 1.19 g/cm^3. Calculate the molarity of this reagent. Molarity = ___mol/L C…

1. Common types of mutations arise in DNA replication include A. The mismatch of

1. Common types of mutations arise in DNA replication include A. The mismatch of bases in the DNA B. The deletion of one or more bases in the DNA C. The insertion of one or more b…

1. Compare Beer\'s law with the equation of a line. Identify x (the independent

1. Compare Beer's law with the equation of a line. Identify x (the independent variable), y (the dependent variable), m, and b using the terms in Beer's law 2. What is a calibrati…

1. Compare acid strength between hypochlorous acid (HOCI) and hypobromous acid (

1. Compare acid strength between hypochlorous acid (HOCI) and hypobromous acid (HOBr). Which is stronger acid? Explain your answer. How about sodium hypochlorite (NaOCI) and sodiu…

1. Compare and contrast internal fragmentation and external fragmentation. Expla

1. Compare and contrast internal fragmentation and external fragmentation. Explain the circumstances where one might be preferred over the other. 2. If a program has 471 bytes and…

1. Compare and contrast internal fragmentation and external fragmentation. Expla

1. Compare and contrast internal fragmentation and external fragmentation. Explain the circumstances where one might be preferred over the other. 2. If a program has 471 bytes and…

1. Compare and contrast the Arrhenius and Bronsted-Lowry definitions of acids an

1. Compare and contrast the Arrhenius and Bronsted-Lowry definitions of acids and bases. 2. Describe what is meant by "conjugate. 3. How are the strength of the parent acid or bas…

1. Compare and explain the gradient column chromatography (liquid chromatography

1. Compare and explain the gradient column chromatography (liquid chromatography) and temperature programming (gas chromatography). 2. Generally, the shape of TLC spot seems like …

1. Compare based on Ka: a. what is the Ka of H2PO4- and NH4+ when they functions

1. Compare based on Ka: a. what is the Ka of H2PO4- and NH4+ when they functions as acids? b. Which one is a stronger acid based Ka comparison? 2. Considering the amphoteric behav…

1. Compare how thee two bird sites use multimedia • https://www.audubon.org/bird

1. Compare how thee two bird sites use multimedia • https://www.audubon.org/birds - National Audobon Society • http://www.allaboutbirds.org/Page.aspx?pid=1189 - Cornell Lab or Orn…

1. Compare the absorption spectrum of9,10-DAP in heptane with that in alcohol. T

1. Compare the absorption spectrum of9,10-DAP in heptane with that in alcohol. Two absorption systems should be evident in both absorption spectra. These two absorption systems co…

1. Compare the absorption spectrum of9,10-DAP in heptane with that in alcohol. T

1. Compare the absorption spectrum of9,10-DAP in heptane with that in alcohol. Two absorption systems should be evident in both absorption spectra. These two absorption systems co…

1. Compare the architectures in terms of total time in nanoseconds. Computer A h

1. Compare the architectures in terms of total time in nanoseconds. Computer A has a clock speed of 2HGz, a CPI of 2.0, and runs 100 instructions. Computer B has a clock speed of …

1. Compare the ionic radii in Table 12.3 with the atomic radii in the inside cov

1. Compare the ionic radii in Table 12.3 with the atomic radii in the inside cover of the book. Why are some ions larger and others smaller than the corresponding atoms? 2. The po…

1. Compare the patterns on the chromatograms. Do any of the patterns appear to m

1. Compare the patterns on the chromatograms. Do any of the patterns appear to match with stolen pen? Which ones? Explain your answer. 2.what can you conclude about the suspects i…

1. Compare the patterns on the chromatograms. Do any of the patterns appear to m

1. Compare the patterns on the chromatograms. Do any of the patterns appear to match with stolen pen? Which ones? Explain your answer. 2.what can you conclude about the suspects i…

1. Compare two different sorting algorithms. 2 .Explain, in your own words point

1. Compare two different sorting algorithms. 2 .Explain, in your own words pointers. Write a simple program to illustrate. 3 .Two programs each read in numbers and find the larges…

1. Compared to phosphorus, the elctron affinity of silicon is ? A) the same B) s

1. Compared to phosphorus, the elctron affinity of silicon is ? A) the same B) smaller C) greater D) impossible to tell 2. In the reaction 2Al + 3Br2 ______ 2AlBr3 . If you start …

1. Compared to pure water, a salt water solution will have a lower vapor pressur

1. Compared to pure water, a salt water solution will have a lower vapor pressure and freezing point and a higher boiling point. higher freezing point and a lower vapor pressure a…

1. Complete and balance each of the following double-replacement reactions. FeSO

1. Complete and balance each of the following double-replacement reactions. FeSO4(aq)+ Sr(OH)2(aq) Express your answer as a chemical equation. Identify all of the phases in your a…

1. Complete and balance each reaction. Determine if a solid precipitate is forme

1. Complete and balance each reaction. Determine if a solid precipitate is formed b. Pb(NO3)4(a)Na2SO4(aq) c. FeCla(aq)NaNO3(aq) d. Li3PO(aq)CaCl2(aq) 2. Complete and balance each…

1. Complete and balance the following as net ionic equations. Assume the Cr and

1. Complete and balance the following as net ionic equations. Assume the Cr and Fe complexes will react completely with Cl- (or SCN-) to form an octahedral complex while the Cu co…

1. Complete and balance the molecular equation, including the phases, for the re

1. Complete and balance the molecular equation, including the phases, for the reaction of aqueous potassium sulfate, K2SO4, and aqueous strontium iodide, SrI2. Molecular equation:…

1. Complete and balanced reactions for Part I. Identify each reaction type. (GIV

1. Complete and balanced reactions for Part I. Identify each reaction type. (GIVEN, 0 pts) a. Cu(OH) (s)+ Cuco,(s)+4 HNO(a)2 Cu(NO,)(aq)+3 H,O)+CO(g) b. Cu(NOs (a)+4 NH(a) (NH)(NO…

1. Complete the following equation 250/96 Cm + ? + 98/38 Sr + 41/0 n a. 148 60 P

1. Complete the following equation 250/96 Cm + ? + 98/38 Sr + 41/0 n a. 14860 Pr b. 15562 Pr c. 15060 Ce d. 14858 Ce 2. An alpha particle is not represented by which of the foll…

1. Complete the following reactions showing the major organicproduct. (The lota

1. Complete the following reactions showing the major organicproduct. (The lota signs are single and double bonds) A.(CH3)2-CH-CH2CH2CH3+ CH3CH2OH …

1. Complete the following table. For each of the hydrates: 1) write the chemical

1. Complete the following table. For each of the hydrates: 1) write the chemical formula; 2) calculate the formula mass; and 3) calculate the mass percentage of water. Chemical Fo…

1. Complete the following table. Z eff Atomic orbital designation for highest en

1. Complete the following table. Zeff Atomic orbital designation for highest energy valence electron (i.e., 2s) Ge C 2. Which atom (Ge or C) has the smaller first ionization energ…

1. Complete the table. N0. of particle (atoms or molecules) 2.Complete The table

1. Complete the table. N0. of particle (atoms or molecules) 2.Complete The table Number OF particles (atoms or molecules) 3. Amylose is a "polysaccharide" that plants use to store…

1. Compound A is three times more soluble in diethyl ether than in water, so its

1. Compound A is three times more soluble in diethyl ether than in water, so its partition coefficient is K = 3, for partitioning of compound A between diethyl ether and water. Fo…

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