Chemistry concepts and calculations

1. Molecules of an ideal gas are abstract points in space and have no volume, wh

1. Molecules of an ideal gas are abstract points in space and have no volume, whereas, a real gas is composed of actual molecules whose atoms occupy some space and interact with e…

1. Moles of magnesium 2. Mass of magnesium chloride 3. Mass of chloride in magne

1. Moles of magnesium 2. Mass of magnesium chloride 3. Mass of chloride in magnesium chloride 4. Moles of chloride in magnesium chloride. 5. % Mg in magnesium chloride 6, % Cl in …

1. Monosaccharides, disaccharides and polysaccharides are types of carbohydrates

1. Monosaccharides, disaccharides and polysaccharides are types of carbohydrates or sachharides. Monosaccharides are simplest sugars with unit monomer which is a base unit of carb…

1. Monserrat is a tiny island in the Atlantic is part of the a. Carribean b. Haw

1. Monserrat is a tiny island in the Atlantic is part of the a. Carribean b. Hawaian c. Aleutian d. Andaman islands 2. Soufrière Hills is a/anin Monserrat a. Tea garden b. orchard…

1. Most equations for predicting plume rise contain two terms that account for d

1. Most equations for predicting plume rise contain two terms that account for different physical reasons for the rise. What is the nature of these two terms? 2. Is it justifiable…

1. Movie Data Write a program that uses a structure named Movie Data to store th

1. Movie Data Write a program that uses a structure named Movie Data to store the following information about a movie: Title Director Year Released Running Time (in minutes) The p…

1. Multiple choice. Choose the letter of the best answer. (16 pts) 1). Choose th

1. Multiple choice. Choose the letter of the best answer. (16 pts) 1). Choose the incorrect statement about reactions of haloalkanes proceeding by SN2 mechanisms. (A) The order of…

1. My lab asked: The average deviation describes the precision of the results. D

1. My lab asked: The average deviation describes the precision of the results. Does the precision indicate that the equilibrium constant is indeed a “ constant ” for this reaction…

1. NASA’s remote investigation of the surface and subsurface of Mars is ongoing.

1. NASA’s remote investigation of the surface and subsurface of Mars is ongoing. One of the research questions involves determining whether conditions needed to support life are (…

1. NaCl is 58.5 g/mole. How many grams do I need to make 25 mL of a 0.3 M soluti

1. NaCl is 58.5 g/mole. How many grams do I need to make 25 mL of a 0.3 M solution? If have a 3 % solution of NaCl, how many mL do I need to make 20 mL of a .3% solution? How many…

1. NaCl is an ionic solid. The Na+ and Cl? ions in NaCl are bonded through an el

1. NaCl is an ionic solid. The Na+ and Cl? ions in NaCl are bonded through an electrostatic force of attraction commonly known as the ionic bond. Water is a polar solvent. The oxy…

1. NaCl is sodium chloride a. NaCl 2. HCl(aq) is hydrochloric acid b. hydrochlor

1. NaCl is sodium chloride a. NaCl 2. HCl(aq) is hydrochloric acid b. hydrochloric acid 3. P2O5 is diphosphorous pentoxide d.diphosphorous pentoxide 4.NH4NO3 is ammonium nitate c.…

1. NaOEt Ph3P How could use infrared spectroscopy (IR) to determine if the Witti

1. NaOEt Ph3P How could use infrared spectroscopy (IR) to determine if the Wittig reaction shown has reached completion? o A The IR spectrum will show the formation of a strong ab…

1. Name a sinlge reagent that can be used to distinguish a) AgCl(s) and Ag2CO3(s

1. Name a sinlge reagent that can be used to distinguish a) AgCl(s) and Ag2CO3(s) and b) NaI(aq) and NaCl(aq). 2. A white, crystalline solid dissolved in water forming a pale blue…

1. Name a sinlge reagent that can be used to distinguish a) AgCl(s) and Ag2CO3(s

1. Name a sinlge reagent that can be used to distinguish a) AgCl(s) and Ag2CO3(s) and b) NaI(aq) and NaCl(aq). 2. A white, crystalline solid dissolved in water forming a pale blue…

1. Name or give the chemical formulas (as appropriate) for the following ionic c

1. Name or give the chemical formulas (as appropriate) for the following ionic compounds: a.) Pb(NO3)2 b.) CuSO4 c.) HClO4 d.) magnesium phosphate e.) chromium (III) oxide 2. Pred…

1. Name the following cycloalkane. (Use cis / trans terms if applicable. It is n

1. Name the following cycloalkane. (Use cis/trans terms if applicable. It is not necessary to use italics in writing compound names.) The IUPAC name is: 2. The following cyclohexa…

1. Name the following cycloalkane. (Use cis / trans terms if applicable. It is n

1. Name the following cycloalkane. (Use cis/trans terms if applicable. It is not necessary to use italics in writing compound names.) The IUPAC name is: 2. The following cyclohexa…

1. Name the four families of hydrocarbons. 2. Alkanes contain all ______________

1. Name the four families of hydrocarbons. 2. Alkanes contain all ________________ bonds, alkenes contain at least one __________________bond, alkynes contain at least one - Click…

1. Name the four main classes of biochemicals. 2. _____________which are also ca

1. Name the four main classes of biochemicals. 2. _____________which are also called sugars are used as ________________ living systems. 3. The simplest sugars are called ________…

1. Name the four main classes of biochemicals. 2. _____________which are also ca

1. Name the four main classes of biochemicals. 2. _____________which are also called sugars are used as ________________ living systems. 3. The simplest sugars are called ________…

1. Name the four types of organic reactions. 2. The reaction shown below is a __

1. Name the four types of organic reactions. 2. The reaction shown below is a ________________ type reaction. CH3CH3 + Br2 -> CH3CH2Br + HBr 3. The reaction shown below is a __…

1. Name the six colors of visible light, starting with the lowest wavelength. 2.

1. Name the six colors of visible light, starting with the lowest wavelength. 2. Distinguish between absorption and emission of energy 3. Do different elements have distinct atomi…

1. Name the two types of nuclear reactions. 2. Radioactivity is a ___________ ty

1. Name the two types of nuclear reactions. 2. Radioactivity is a ___________ type of nuclear reaction. 3. Radioactivity nuclear reactions have _______________ reactant(s) and ___…

1. Name three carboxylic acids whose sodium salts you might expect to find after

1. Name three carboxylic acids whose sodium salts you might expect to find after saponification of Spry or Crisco. 2. Why is the pH of soap made from crisco around 8-10? 3. Write …

1. Name three observations/signs that might indicate that a chemical reaction ha

1. Name three observations/signs that might indicate that a chemical reaction has occurred. 2. Write a balanced chemical equation for the reaction of iron with oxygen to form iron…

1. Naphthalene (Mothballs, C1oHs) is an example of a(n): a. Mixture b. Element c

1. Naphthalene (Mothballs, C1oHs) is an example of a(n): a. Mixture b. Element c. Compound 2. The type of compound found in the air that can endanger our health is a. CO2 b. NO2 c…

1. Naphthalene, Ci0Hs, is present in a waste water sample at a concentration of

1. Naphthalene, Ci0Hs, is present in a waste water sample at a concentration of 71 ppm. Assuming the water sample density is 1.00 g/mL, what is the concentration of the Naphthalen…

1. Naturally occurring amino acid residues in proteins are in which form? 2. The

1. Naturally occurring amino acid residues in proteins are in which form? 2. The Pka values of alpha carobxyl groups of common amino acids are around__________; the pKa values of …

1. Need in java source code 2. Create a Lab2Test class which, Requests the initi

1. Need in java source code 2. Create a Lab2Test class which, Requests the initial balances for two separate accounts Creates two account objects Deposits money int the first acco…

1. Net ionic equation for magnesium iodide and ammonium sulfide? 2. Net ionic eq

1. Net ionic equation for magnesium iodide and ammonium sulfide? 2. Net ionic equation for ammonium sulfide and barium nitrate? 3. Net ionic for potassium phospate and sodium acet…

1. Neuron cells generate electrical signals by concentration gradients across me

1. Neuron cells generate electrical signals by concentration gradients across membranes. Assuming a potassium ion concentration of 0.00300 M inside the cell, and a concentration o…

1. Neutron Activation Analysis relies on the detection of ?-rays because: a.The

1. Neutron Activation Analysis relies on the detection of ?-rays because: a.The only source of ?-rays in a laboratory will be from the analyte, so interferences will be minimized.…

1. Nickel can be obtained from ore containing millerite, Nis, which has density

1. Nickel can be obtained from ore containing millerite, Nis, which has density 555 g/cm, (15 points) nickel can be obtained from 7. 50 cubic feet of millerite? a. How many kilogr…

1. Nickel, a common metal used in a variety of alloys, is purified via the Mond

1. Nickel, a common metal used in a variety of alloys, is purified via the Mond process to a very high (> 99.99%) purity. One of the steps in the Mond process involves the reac…

1. Nina\'s video on pots and pans and the article by Robert Wolke called \"How t

1. Nina's video on pots and pans and the article by Robert Wolke called "How to choose a pan" both recommend All-Clad pans. These are pans made of: 1. Silver 2. Copper or aluminum…

1. Nitric acid hydrates have been connected to heterogeneous reactions related t

1. Nitric acid hydrates have been connected to heterogeneous reactions related to the formation of the ozone hole above Antarctica: HNO3 nH2O(s) HNO3 (g) + nH2O (g) where n=1, 2 a…

1. Nitric oxide (NO) occurs in the atmosphere naturally at a concentration of 0.

1. Nitric oxide (NO) occurs in the atmosphere naturally at a concentration of 0.1 ppb. Determine whether this concentration represents equilibrium with respect to H:O, O2 and ammo…

1. Nitric oxide (NO) occurs in the atmosphere naturally at a concentration of 0.

1. Nitric oxide (NO) occurs in the atmosphere naturally at a concentration of 0.1 ppb. Determine whether this concentration represents equilibrium with respect to H:O, O2 and ammo…

1. Nitric oxide, NO, is made from the oxidation of NH3 as follows: 4NH3 + 5O2 4N

1. Nitric oxide, NO, is made from the oxidation of NH3 as follows: 4NH3 + 5O2 4NO + 6H2O If 9.6-g of NH3 gives 12.0 g of NO, what is the percent yield of NO? (71.0 %) 2. How many …

1. Nitrogen is a vital component of proteins and nucleic acids, and thus is nece

1. Nitrogen is a vital component of proteins and nucleic acids, and thus is necessary for life. The atmosphere is composed of roughly 80% N2, but most organisms cannot directly ut…

1. Normal Phase Chromatography Column material is _______ (silica/bonded phase)

1. Normal Phase Chromatography Column material is _______ (silica/bonded phase) Column material is _______ (polar/non-polar) Elution begins with _______ (polar/non-polar) solvent …

1. Not all Gas Law problems have Kelvin (K) as the unit of temperature. They can

1. Not all Gas Law problems have Kelvin (K) as the unit of temperature. They can be expressed in Celsius (°C) and Fahrenheit (°F). So convert 123°C to K. a. 396K b. 486K c. 369K A…

1. Note that not every function has to have parameters. For example, you have be

1. Note that not every function has to have parameters. For example, you have been creating the function main since the beginning, and it is a function without parameters. Using t…

1. Number of communications channels = (n(n-1))/2. For 6 people, there would be

1.     Number of communications channels = (n(n-1))/2. For 6 people, there would be (6(6-1))/2 = communications channels. If the team grew to 10 people, there would be (10(10-1))/…

1. Number of teaspoons in exactly one cup of water 2. Number of tablespoons in e

1. Number of teaspoons in exactly one cup of water 2. Number of tablespoons in exactly one cup of water 3, Number of teaspoons in a tablespoon (show work with #5) teaspoons tables…

1. Number of teaspoons in exactly one cup of water 2. Number of tablespoons in e

1. Number of teaspoons in exactly one cup of water 2. Number of tablespoons in exactly one cup of water 3, Number of teaspoons in a tablespoon (show work with #5) teaspoons tables…

1. ORDER FO MAGNITUDE ESTIMATION; At one atmosphere of pressure, what percentage

1. ORDER FO MAGNITUDE ESTIMATION; At one atmosphere of pressure, what percentage of the volume of nitrogen gas is taken up by the volume of the nitrogen molecules (N2)? Assume a n…

1. Objective: Create a C++ console application that will model the characteristi

1.Objective: Create a C++ console application that will model the characteristics of a resistor. Create a multifile project. Create and add to the project an h file containing the…

1. Objects representing each of the controls in a form are stored in the (blank)

1. Objects representing each of the controls in a form are stored in the (blank) collection. A. forms B. controls C. inputs D. elements 2. Which of the following type values for t…