Chemistry concepts and calculations
117302 questions • Page 9 / 2347
(1) Which statements are TRUE concerning particles that make up atoms? I. The ma
(1) Which statements are TRUE concerning particles that make up atoms? I. The mass comes solely from the neutrons. II. The atomic number of a neutral atom equals the number of ele…
(1) Which statements are TRUE concerning particles that make up atoms? I. The ma
(1) Which statements are TRUE concerning particles that make up atoms? I. The mass comes solely from the neutrons. II. The atomic number of a neutral atom equals the number of ele…
(1) Will you be estimating the gross energy or the physiologic energy value of a
(1) Will you be estimating the gross energy or the physiologic energy value of a peanut when you do the calculations for this experiment? Briefly explain. (2) With which food labe…
(1) Write a function that will return in a structure the following characteristi
(1) Write a function that will return in a structure the following characteristics of a given string: 1) string length (use strlen), 2) number of upper case characters 3) number o…
(1) \"Big Dig\" tunnel ceiling collapse in Boston started as: (a) fatigue failur
(1) "Big Dig" tunnel ceiling collapse in Boston started as: (a) fatigue failure (b) crack expansion from stress concentration, (c) creep failure, (d) shock failure (2) Materials w…
(1) adding an enzyme to a reaction is ___the activation energy, which is the amo
(1) adding an enzyme to a reaction is ___the activation energy, which is the amount of energy required to start the reaction. (a) decresase (b)bincreases (c) does not change (2) t…
(1) in glycolysis, which reactions involve phosphorylation with ATP? (a) glucose
(1) in glycolysis, which reactions involve phosphorylation with ATP? (a) glucose to glucose -6-phosphate, fructose-6-phosphate to fructose-1,6-bisphosphate and phosphoenolpyruvate…
(1) please need good explanation. 4 1. 4. Answer the questions related to static
(1) please need good explanation. 4 1. 4. Answer the questions related to static Stack and static Queue. The following codes are the member functions from static stack/queue class…
(1) private final int MEALS 1= 200; private JButton jbtnReset 1= new JButton(\"R
(1) private final int MEALS 1= 200; private JButton jbtnReset 1= new JButton("RESET "); typo: no blank space in variable name - MEALS1 and jbtnReset1 are correct. (2) groupLoca…
(1) put the molecule of the first round of lipogenesis in correct order (a) acet
(1) put the molecule of the first round of lipogenesis in correct order (a) acetoacetyl-Acp (b) 3-hydroxyacyl-Acp (c)malanyl Acp (d) trans-2-enoyl Acp (e) butynyl-Acp (2) put the …
(1) what is the chemical driving force for the conversion of Mn(III)(salpn)(AcAc
(1) what is the chemical driving force for the conversion of Mn(III)(salpn)(AcAc) to the Mn(III)(salpn)(H2O)2+ complex? Experiment Guide: [MnIII(salpn)(H2O)2](CF3SO3) In a round b…
(1). 40-Ca, 39-K, and 42-Ti all have the same: a. number of electrons b. atomic
(1). 40-Ca, 39-K, and 42-Ti all have the same: a. number of electrons b. atomic number c. mass number d. number of (2). Element X, whose atoms have an outer-shell electron configu…
(1). 40-Ca, 39-K, and 42-Ti all have the same: a. number of electrons b. atomic
(1). 40-Ca, 39-K, and 42-Ti all have the same: a. number of electrons b. atomic number c. mass number d. number of (2). Element X, whose atoms have an outer-shell electron configu…
(1). Why can buffers minimize the pH change of a solution? (2). Studies show tha
(1). Why can buffers minimize the pH change of a solution? (2). Studies show that regular soft drinks promote tooth decay and may increase the risk of osteoporosis. Can you explai…
(1). Why can buffers minimize the pH change of a solution? (2). Studies show tha
(1). Why can buffers minimize the pH change of a solution? (2). Studies show that regular soft drinks promote tooth decay and may increase the risk of osteoporosis. Can you explai…
(1)A student measures the molar solubility of lead iodide in a water solution to
(1)A student measures the molar solubility of lead iodide in a water solution to be 1.32×10-3 M. Based on her data, the solubility product constant for this compound is (2)A stude…
(1)An aqueous solution contains 167g CuSO4 in 820mL ofsolution, the density of t
(1)An aqueous solution contains 167g CuSO4 in 820mL ofsolution, the density of the solution is 1.195g/mL calculate themolarity of the solution. (2) What is the molarity of a solut…
(1)Gaseous chlorine reacts with ethylene to give 1,2-dichloroethane: Cl2(g) C2H4
(1)Gaseous chlorine reacts with ethylene to give 1,2-dichloroethane: Cl2(g) C2H4(g) ClCH2CH2Cl(g) The above reaction is carried out in a special steel reaction vessel that is desi…
(1)How would you change the volume of the reaction container that holds the foll
(1)How would you change the volume of the reaction container that holds the following reaction in order to increase the yield of SF6? S(s) + 3 F2(g) SF6(g) (a) Increase the volume…
(1)What effect does the presence of a nonvolatile solutehave upon (a) the vapour
(1)What effect does the presence of a nonvolatile solutehave upon (a) the vapour pressure of a solution, (b) the freezingpoint and (c) the boiling point? (2) what is the molality …
(1)What is atmospheric pressure on top of Mt. Everest on a day when water boils
(1)What is atmospheric pressure on top of Mt. Everest on a day when water boils there at a temperature of 70.0°C? _____N/m2 (2)A deep sea diver should breathe a gas mixture that h…
(1)What is the name of the method you will use to weigh out the calcium chloride
(1)What is the name of the method you will use to weigh out the calcium chloride needed to make your solution? (2)A student collects the following data in Part A. Calculate the co…
(1)When aqueous solutions of sodium iodide, NaI, and lead(II) acetate, Pb(C2H3O2
(1)When aqueous solutions of sodium iodide, NaI, and lead(II) acetate, Pb(C2H3O2)2, are mixed, which of the following correctly describes the outcome? (a)No reaction occurs when t…
(1.) Need help drawing a mechanism for each step (2) a step by step explanation
(1.) Need help drawing a mechanism for each step (2) a step by step explanation of the mechanism and what is each chemical used for to study for a test Add 1.5 g of thiamine hydro…
(10 points) Create a HTML form address.html to collect people’s names and addres
(10 points) Create a HTML form address.html to collect people’s names and addresses. Include 5 textboxes: 1- name 2- address line 1 3- address line 2 4- city 5- zip code Also incl…
(10 points) Create a HTML form address.html to collect people’s names and addres
(10 points) Create a HTML form address.html to collect people’s names and addresses. Include 5 textboxes: 1- name 2- address line 1 3- address line 2 4- city 5- zip code Also incl…
(10 points) If all of the chemical energy in one drop of gasoline (which can be
(10 points) If all of the chemical energy in one drop of gasoline (which can be assumed to consist of pure octane) is converted to lifting a tennis ball (57 g) against the gravita…
(10 points) Q3: Suppose each disk block can hold 512 bytes of data. Assume that
(10 points) Q3: Suppose each disk block can hold 512 bytes of data. Assume that it takes S bytes to record the address of a disk block. hw4,q5 Calculate the maximum file size that…
(10 points) Student X writes that \"Just because a reaction is spontaneous for o
(10 points) Student X writes that "Just because a reaction is spontaneous for one of either the Gibbs or Helmholtz energy, it does not have to be spontaneous for the other one." P…
(10 points) True/False Questions. Suppose that we have an algorithm A1 that runs
(10 points) True/False Questions. Suppose that we have an algorithm A1 that runs in polynomial time, with a very large exponent, e.g. on input of size n it takes theta(n^1,000,000…
(10 points) You have a standardized calcium ion (Ca ppm by mass e 10.0(3) g Ca/
(10 points) You have a standardized calcium ion (Ca ppm by mass e 10.0(3) g Ca/ 1x106 g solution) from which you are making a dilution with. The standardized solution has a densit…
(10 points). Q2. Write down all incorrect sentence(s) (if any) from the list bel
(10 points). Q2. Write down all incorrect sentence(s) (if any) from the list below -In a shearing fluid, normal stresses do not have to be equal to pressure. -There is a maximum o…
(10 points, total) A substrate (S) consumption rate is given by the following eq
(10 points, total) A substrate (S) consumption rate is given by the following equation: dS/dt=-k(S)2 (ia) (5 points) Develop an equation to calculate final substrate concentration…
(10 pts) Consider the experimental description below for the separation of a mix
(10 pts) Consider the experimental description below for the separation of a mixture of benzoic acid and acetanilide by base extraction. The experimental methods and analyses cont…
(10 pts) For thereaction Haseo3(aq) + 6 raq) + 4H+(ao Ses) + 213-(aq) + 3 HOah s
(10 pts) For thereaction Haseo3(aq) + 6 raq) + 4H+(ao Ses) + 213-(aq) + 3 HOah several experiments were conducted and the initial rate of reaction was measured. 1. Experiment[H2Se…
(10 pts) The iron content of a well water sample is determined by UV-Vis spectro
(10 pts) The iron content of a well water sample is determined by UV-Vis spectroscopy. A 10.00 mL aliquot of well water is transferred to a 100.0-mL volumetric flask and 20 mL of …
(10%) Problem 3: You take two electric bulbs. Bulb #1 is marked 20W and bulb usu
(10%) Problem 3: You take two electric bulbs. Bulb #1 is marked 20W and bulb usual household voltage. is 50W. They are designed to be used with If you connect these bulbs in serie…
(10%) Problem 4: An electron in a TV CRT moves with a speed of 6.75 × 107 m/s, i
(10%) Problem 4: An electron in a TV CRT moves with a speed of 6.75 × 107 m/s, in a direction perpendicular to the Earth's magnetic field, which has a strength of 4.75 x 10-5 T. 5…
(10%) Problem 5: A 2675 kg child is riding a playground merry-go-round that is r
(10%) Problem 5: A 2675 kg child is riding a playground merry-go-round that is rotating at 41.1 rev/min. A 25% Part (a) what net force is actin this situation is sometimes called …
(10) (Problem 1-7 from the textbook). Ted Terrific is the manager of a leather t
(10) (Problem 1-7 from the textbook). Ted Terrific is the manager of a leather tanning company. In part of the tanning operation a solution of chromic acid is.used. It is company …
(10) Adiabatic Processes (10 points) A 200 g iron ball heated to an unknown temp
(10) Adiabatic Processes (10 points) A 200 g iron ball heated to an unknown temperats an insulated bucket of 150 g of water at 25 C. Theand id water and the ball is 55°C. How hot …
(10) Oxygen gas reacts with powdered aluminum according to the following reactio
(10) Oxygen gas reacts with powdered aluminum according to the following reaction: 4Al(s)+3O2(g)2Al2O3(s). Part A What volume of O2 gas (in L), measured at 778 mmHg and 19 C, is r…
(10) Suppose you prepared a solution in a 500mL volumetric flask which contains
(10) Suppose you prepared a solution in a 500mL volumetric flask which contains 5.7080g of Ca(OH)2 and water as the solvent Express the concentration of the calcium hydroxide solu…
(10) Suppose you prepared a solution in a 500mL volumetric flask which contains
(10) Suppose you prepared a solution in a 500mL volumetric flask which contains 5.7080g of Ca(OH)2 and water as the solvent Express the concentration of the calcium hydroxide solu…
(10) Which of the following statements about ATP is true? B.) C. D. the energy o
(10) Which of the following statements about ATP is true? B.) C. D. the energy of hydrolysis is the same for all of the phosphate groups of the molecule despite the very exergonic…
(10). Which of the following is a product of azo coupling? compound 1 compound2
(10). Which of the following is a product of azo coupling? compound 1 compound2 compound 3 compound4 (a) compound 2 (b) compound 3 (c) compound 4 (d) compound 1 (e) none of the ab…
(100 pts) Write a program that implements the following functions. long factoria
(100 pts) Write a program that implements the following functions. long factorial(int n) double exponent(double x, int n) The functions implemented should follow below guidelines …
(100 pts) Write a program to find the largest palindrome in a string. A palindro
(100 pts) Write a program to find the largest palindrome in a string. A palindrome is a sequence that reads the same backward as forward. racecar, eve, kayak are some examples. Fo…
(100 pts) Write a program to find the smallest Positive integer that does not ap
(100 pts) Write a program to find the smallest Positive integer that does not appear in the array and can not be formed by the sum of two numbers in an array. For this assignment …
(100 pts) Write a program to find the smallest positive integer that (loes not a
(100 pts) Write a program to find the smallest positive integer that (loes not appear in the array and can not be formed by the sum of two numbers in an array. For this assignment…
Subject
Chemistry concepts and calculations
Use Browse or pick another subject.