01236

This page lists questions and answers that were posted by visitors named 01236.

Questions

The following questions were asked by visitors named 01236.

Water has a higher specific heat than land. Considering this fact, which state would have the most consistent (unchanged) temperature from day to night? Alabama Florida Tennessee West Virginia
1 month ago
If a metal has a specific heat, then the metal could make an excellent material for cookware because
1 month ago
Beryllium is a rare metal that is gray in color, strong, and lightweight. The following data was obtained from a calorimeter experiment: 5 sets of equations: m beryllium equals 10.1 grams. M water equals 38.8 grams. Delta T beryllium equals final T minus...
1 month ago
The lab procedure involves several factors, listed below. Some were variable and some were constant. Label each factor below V for variable or C for constant. mass of the water in the calorimeter mass of the metal change in temperature of the water change...
1 month ago
use a graduated cylinder to add approximately 40 mL of water to the calorimeter. Measure the mass of the calorimeter (no lid) and water to the nearest 0.01 g.
1 month ago
52.31-40
1 month ago
The table shows input and output values for a cubic function. What is an approximate zero of the function? Use the drop-down menus to complete the statements. A zero can be found between input values of because . One zero of the function is approximately...
1 month ago
The table below represents the cost, in hundreds of thousands of dollars, for operating a factory for x hours. The data is modeled by the function . Approximately how many hours of operation will result in a cost of $310,000? 4.25 4.5 4.75 5.0
1 month ago
Approximately how many hours of operation will result in a cost of $310,000? 4.25 4.5 4.75 5.0
1 month ago
The equation C(l) = l3 – l2 + l + 2.5 models the cost to mail a package as a function of its length. To the nearest quarter inch, approximately what is the length of a package that costs $11.00 to mail? Enter your answer as a decimal. inches
1 month ago
The graph shown represents the volume of petroleum in a spherical tank with a 15-foot radius as a function of the height of the liquid, in feet. This relationship can be modeled by the equation y = 15πx2 − πx3. What is the approximate height of the petrol...
1 month ago
The function shown models the horizontal and vertical distances, in feet, traveled by a person on a roller coaster. What horizontal distance is traveled to first reach a height of 200 feet? Use the drop-down menus to complete the statements. The person fi...
1 month ago
The person first reaches a height of 200 feet after traveling a horizontal distance between feet.
1 month ago
The graph of f(x) = x3 + x2 – 9x – 9 is shown. Based on the graph, what are the solutions of x3 + x2 – 9x – 9 = 0? x = –1, 3 x = –3, –1 x = –3, –1, 3 x = –9, –3, –1, 3
1 month ago
Which values are the result of cubing a rational number? Check all that apply. 15 27 36 64 125 216
1 month ago
Which points are on the graph of f(x) = RootIndex 3 StartRoot x EndRoot? Check all that apply. (–27, –3) (–1, 1) (0, 0) (1, 1) (3, 27)
1 month ago
Which is the graph of f(x) = RootIndex 3 StartRoot x EndRoot? On a coordinate plane, a cube root function goes through (negative 8, negative 2), has an inflection point at (0, 0), and goes through (8, 2). On a coordinate plane, a cube root function goes t...
1 month ago
Which is the graph of f(x) = Negative RootIndex 3 StartRoot x EndRoot? On a coordinate plane, a cube root function goes through (negative 8, negative 2), has an inflection point at (0, 0), and goes through (8, 2). On a coordinate plane, a cube root functi...
1 month ago
Which is the graph of f(x) = RootIndex 3 StartRoot x EndRoot – 4? On a coordinate plane, a cube root function goes thorugh (negative 8, 2), has an inflection point at (0, 4), and goes through (8, 6). On a coordinate plane, a cube root function goes throug...
1 month ago
On a coordinate plane, 2 cube root functions are shown. The first cube root function is a solid line and goes through (negative 8, 2), has an inflection point at (3.5, 4), and goes through (4, 5). The second cube root function is a dashed line and is repr...
1 month ago
Which is the graph of f(x) = RootIndex 3 StartRoot negative x EndRoot? On a coordinate plane, a cube root function goes through (negative 8, negative 2), has an inflection point at (0, 0), and goes through (8, 2). On a coordinate plane, a funtion has 2 cu...
1 month ago
Which ordered pairs represent points on the graph of f(x)= Negative RootIndex 3 StartRoot x EndRoot? Check all that apply. (–2, 2) (–1, –1) (0, 0) (1, –1) (6, –2) (8, –2)
1 month ago
How can the graph of f(x) = RootIndex 3 StartRoot x EndRoot be transformed to represent the function g(x) = RootIndex 3 StartRoot x EndRoot – 3? Translate the graph of f(x) 3 units. The point is on the graph of g(x).
1 month ago
On a coordinate plane, 2 cube root functions are shown. Function f (x) goes through (negative 3, negative 1.5), has an inflection point at (0, 0), and goes through (3, 1.5). Function g (x) is 2 units to the left of f (x) and has an inflection point at (ne...
1 month ago
Which is the graph of y = + 3? On a coordinate plane, a cube root function goes through (negative 4, 1), has an inflection point at (2, 3), and goes through (3, 4). On a coordinate plane, a cube root function goes through (negative 3, 2), has an inflectio...
1 month ago
Which describes how to graph h(x)= –RootIndex 3 StartRoot x EndRoot + 3 using transformations of the parent function? Reflect over the horizontal axis, and then translate the graph right 3 units. Reflect over the horizontal axis, and then translate the gr...
1 month ago
On a coordinate plane, a cube root function goes through (negative 2.5, negative 3.5), crosses the y-axis at (0, negative 3), has an inflection point at (1, negative 2), and goes through (2, negative 1). Determine the values of h and k in the equation of...
1 month ago
Which statements are true of the graph of h(x) = RootIndex 3 StartRoot x minus 4 EndRoot? Check all that apply. The domain of h(x) is the set of all real numbers. The range of h(x) is the set of all real numbers. For all points (x, h(x)), h(x) exists if a...
1 month ago
On a coordinate plane, 2 cube root functions are shown. The first function goes through (negative 4, negative 1.5), has an inflection point at (0, 0), and goes through (4, 1.5). The second function goes through (negative 4, negative 0.5), has an inflectio...
1 month ago
The graph of y = is reflected over the y-axis and then translated down 2 units to form f(x). Which is the graph of f(x)?
1 month ago
The function f(x) = RootIndex 3 StartRoot x EndRoot is reflected over the x-axis to create the graph of g(x) = Negative RootIndex 3 StartRoot x EndRoot. Which is the graph of g(x)? On a coordinate plane, a cube root function goes through (negative 2, nega...
1 month ago
11.98 rounded to the nearest hundredth place
1 month ago
40.13 round to the nearest hundredth place
1 month ago
However, compared to the other options, lead is too
1 month ago
Considering everything, or , would make the best cookware and therefore may be the best choices overall.
1 month ago
Using the information in the table to the right, calculate the enthalpy of combustion of 1 mole of acetylene for the reaction: 2Ces001-1.jpgHes001-2.jpg + 5Oes001-3.jpg es001-4.jpg 4COes001-5.jpg + 2Hes001-6.jpgO kJ/mol A 2-column table with 5 rows. Colum...
1 month ago
Using the information in the table to the right, calculate the enthalpy of combustion of 1 mole of acetylene for the reaction: 2Ces001-1.jpgHes001-2.jpg + 5Oes001-3.jpg es001-4.jpg 4COes001-5.jpg + 2Hes001-6.jpgO 2511.18 kJ/mol
1 month ago
What is the enthalpy of reaction for the decomposition of calcium carbonate? CaCO3(s) Right arrow. CaO(s) + CO2(g) kJ A 2-column table with 6 rows. Column 1 is labeled Compound with entries upper C a upper O solid, Upper C a upper C upper O subscript 3 so...
1 month ago
What is the enthalpy of combustion when 1 mol C6H6(g) completely reacts with oxygen? 2C6H6(g) + 15O2(g) mc001-1.jpg 12CO2(g) + 6H2O(g) –6339 kJ/mol –3169 kJ/mol 1268 kJ/mol 6339 KJ/mol A 2-column table with 6 rows. Column 1 is labeled Compound with entrie...
1 month ago
The enthalpy of combustion for octane (C8H18(l)), a key component of gasoline, is –5074 kJ/mol. The reaction equation is: C8H18(l) + 12.5O2(g) es001-1.jpg 8CO2(g) + 9H2O(g). What is the es001-2.jpgHf for this reaction? 16CO2(g) + 18H2O(g) es001-3.jpg 2C8H...
1 month ago
Consider the following data: Three entries. 1: Delta H f 1 of C O 2 equals negative 393.5 kilojoules per mole. 2: Delta H f 1 H 2 O equals negative 241.82 kilojoules per mole. 3: Delta H f 1 C 2 H 2 equals negative 84.68 kilojoules per mole. Using these d...
1 month ago
Consider the following data: S(s) + O2(g) → SO2(g) ΔHrxn = -297 kJ 2SO3(g) → 2SO2(g) + O2(g) ΔHrxn = 198 kJ Use Hess's law to determine es002-1.jpgHrxn for this reaction: 2S(s) + 3O2(g) es002-2.jpg 2SO3(g) es002-3.jpg = kJ
1 month ago
Indicate whether each of these reactions is endothermic or exothermic. NH4Cl(s) es002-1.jpg NH4+(aq) + Cl–(aq) es002-2.jpgHrxn = 14.7 kJ NaOH(s) es003-1.jpg Na+(aq) + OH–(aq) es003-2.jpgHrxn = -44.5 kJ CH4(g) + 2O2(g) es004-1.jpg CO2(g) + 2H2O(g) es004-2....
1 month ago
These reactions are all spontaneous. Based on this information, is enthalpy of reaction a reliable indicator of whether a reaction is spontaneous?
1 month ago
Choose the system from each pair that likely has the higher entropy. ice liquid water
1 month ago
Choose the system from each pair that likely has the higher entropy. ice liquid water liquid water at 10°C liquid water at 90°C
1 month ago
Choose the system from each pair that likely has the higher entropy. ice liquid water liquid water at 10°C liquid water at 90°C 1 mol NaBr dissolved in 1 L water 1 mol solid NaBr and 1 L pure water in separate containers
1 month ago
Choose the system from each pair that likely has the higher entropy. ice liquid water liquid water at 10°C liquid water at 90°C 1 mol NaBr dissolved in 1 L water 1 mol solid NaBr and 1 L pure water in separate containers 3 mol N2 gas and 2 mol O2 gas in s...
1 month ago
The Second Law of Thermodynamics states that the overall entropy of the universe (or any other isolated system) can never decrease. Identify the systems to which the Second Law of Thermodynamics would apply. a reaction vessel that is completely sealed and...
1 month ago
Use the information in the table to calculate es001-1.jpgSrxn for each of these reactions. Round all answers to nearest whole number. 3H2(g) + N2(g) es001-2.jpg 2NH3(g) es001-3.jpgSrxn = J/K CH4(g) + 2O2(g) es002-1.jpg CO2(g) + 2H2O(g) es002-2.jpgSrxn = J...
1 month ago
Use this information to calculate es001-1.jpgGrxn. es001-2.jpg es001-3.jpg = kJ
1 month ago
es001-2.jpg es001-3.jpg = kJ
1 month ago
Use this information to calculate es002-1.jpgGrxn at 298 K. es002-2.jpg es002-3.jpg = kJ
1 month ago
Identify each of these reactions as being spontaneous or nonspontaneous. es001-1.jpg es002-1.jpg es003-1.jpg
1 month ago
For each of these equations, predict the effects of temperature on the spontaneity of the reaction. 2N2O(g) es001-1.jpg 2N2(g) + O2(g) es001-2.jpgH < 0; es001-3.jpgS > 0 H2O(l) es002-1.jpg H2O(g) es002-2.jpgH > 0; es002-3.jpgS > 0 3O2(g) es003-1.jpg 2O3(g...
1 month ago
H2O(l) es002-1.jpg H2O(g) es002-2.jpgH > 0; es002-3.jpgS > 0 3O2(g) es003-1.jpg 2O3(g) es003-2.jpgH > 0; es003-3.jpgS < 0
1 month ago
H2O(l) es002-1.jpg H2O(g) es002-2.jpgH > 0; es002-3.jpgS > 0
1 month ago
es001-2.jpg es001-3.jpg = J/K
1 month ago
Calculate es002-1.jpg for the equation below. (Round to the nearest whole number.) es002-2.jpg es002-3.jpg = J/K
1 month ago
//media.edgenuity.com/EVresources/3210
1 month ago
Consider the spontaneous dissolution of NaCl in water: NaCl(s) → Na+(aq) + Cl −(aq) Predict whether the entropy change for this process is positive or negative and explain your answer. Then, predict whether the free energy change for the process is positi...
1 month ago
What is Delta.Grxn for the equation below? NaOH(aq) + HCl(aq) Right arrow. H2O(l) + NaCl(aq) Delta.Hrxn = -56.13 kJ Delta.Srxn = 87.1 J/K T = 303 K Use Delta.G = Delta.H – TDelta.S. –82.5 kJ –29.7 kJ 26,500 kJ 27,000 kJ
1 month ago
The reaction below proceeds spontaneously at 298 K. NH3(g) +Cl2(g)Right arrow.NH4Cl(s) What is the sign of the entropy change, Delta.S? Delta.S is negative because the product is less random than the reactants. Delta.S is negative because the reactants ar...
1 month ago
Which process or processes produce an increase in entropy? i. N2(g) + 3H2(g) Right arrow. NH3(g) ii. C10H8(g) Right arrow. C10H8(s) iii. CH3OH(l) Right arrow. CH3OH(aq) i only ii and iii iii only i and iii
1 month ago
Which statement describes a system that consists of sugar crystals dissolving in water? The system becomes more ordered and has an increase in entropy. The system becomes more ordered and has a decrease in entropy. The system becomes more disordered and h...
1 month ago
What is the definition of entropy? a system that can exchange both matter and energy with its surroundings a measure of the overall disorder of a system a quantity that measures the overall spontaneity of a reaction a process that will proceed without con...
1 month ago
Which type of reaction is always spontaneous? an exothermic reaction that has an increase in disorder an exothermic reaction that has a decrease in disorder an endothermic reaction that has an increase in disorder an endothermic reaction that has a decrea...
1 month ago
Consider the following equation. Fe2O3(s) + 3H2(g) Right arrow. 2Fe(s) + 3H2O(g) Delta.H = 98.8 kJ, and Delta.S = 141.5 J/K. Is this reaction spontaneous or nonspontaneous at high and low temperatures? spontaneous at high temperatures, nonspontaneous at l...
1 month ago
Identify the substances that are likely to dissociate in water. Check all that apply. sodium bromide (NaBr) potassium hydroxide (KOH) magnesium chloride (MgCl2) silicon dioxide (SiO2) sodium oxide (Na2O)
1 month ago
Identify the equations that show ionization. Check all that apply. Upper N a upper C l (s) right arrow upper N a superscript plus (a q) plus upper C l superscript minus (a q). Upper H upper C l (g) plus upper H subscript 2 upper O (l) right arrow upper C...
1 month ago
HBr + KOH mc001-1.jpg KBr + H2O In this reaction, the acid is HBr. KOH. KBr. H2O.
1 month ago
Which substances are most likely acids? Check all that apply. CH4 HI NH3 HNO3 NaCl
1 month ago
Calcite (the main mineral in limestone) is made of calcium carbonate (CaCO3). Dolomite, a related mineral, is made of magnesium carbonate (MgCO3). What happens if a geologist drips a small amount of vinegar (acetic acid) onto a sample of dolomite? There i...
1 month ago
Select the chemical equation that most likely represents the reaction between the vinegar and the dolomite. Upper M g upper C upper O subscript 3 plus 2 upper H upper C upper H subscript 3 upper C upper O upper O right arrow upper M g plus upper C upper O...
1 month ago
Choose the products that complete the reaction. The chemical equations may not be balanced. HCl + NaOH mc001-1.jpg ? NaCl + H2O NaCl + CO2 + H2O NaCl + H2
1 month ago
Choose the products that complete the reaction. The chemical equation may not be balanced. HC2H3O2 + Ca(OH)2 mc001-1.jpg ? Ca(C2H3O2)2 + H2O Ca(C2H3O2)2 + CO2+ H2O Ca(C2H3O2)2 + H2
1 month ago
Choose the products that complete the reaction. The chemical equation may not be balanced. Al + H2SO4 mc001-1.jpg ? Al2(SO4)3 + H2O Al2(SO4)3 + CO2+H2O Al2(SO4)3 + H2
1 month ago
Choose the products that complete the reaction. The chemical equation may not be balanced. NaHCO3 + HC2H3O2 mc001-1.jpg ? NaC2H3O2 + H2O NaC2H3O2 + CO2 + H2O NaC2H3O2 + H2
1 month ago
Identify the base in this acid-base reaction: 2 upper H upper C subscript 2 upper H subscript 3 upper O subscript 2 plus upper M g (upper O upper H) subscript 2 right arrow upper M g (upper C subscript 2 upper H subscript 3 upper O subscript 2) subscript...
1 month ago
Identify the base in this acid-base reaction: Upper N a upper O upper H plus upper H upper C l right arrow upper N a upper C l plus upper H subscript 2 upper O. NaOH HCl NaCl H2O
1 month ago
A piece of lithium metal is added to a beaker that contains water and phenolphthalein. Using what you know about the properties of bases, choose the best explanation for what you observe. The phenolphthalein is turning pink because an acid is forming. The...
1 month ago
Select the most likely product for this reaction: Upper L i upper O upper H (a q) plus upper H upper N upper O subscript 3 (a q) right arrow question mark. CO2(g) + H2O(l) LiNO3(aq) + H2O(l) LiNO3(aq) + H2(g) + O2(g)
1 month ago
Select the most likely product for this reaction: Upper K subscript 2 upper C upper O subscript 3 (a q) plus upper C upper O subscript 2 (g) right arrow question mark. K2CO3(aq) + H2O(l) K(s) + H2(g) + O2(g) K(s) + CO3(g) + H2
1 month ago
Select the most likely product for this reaction: Upper A g upper N upper O subscript 3 (a q) plus upper N a upper O upper H (a q) right arrow question mark. AgOH(s) + NaNO3(aq) Ag2O(s) + HNO3(aq) Ag(s) + H2(g) + O2(g)
1 month ago
A student crushes some calcium supplement tablets and dissolves them in water. The resulting solution feels slippery and has a slightly bitter taste. Are the supplement tablets most likely to be acids or bases?
1 month ago
Limestone is made of calcium carbonate, CaCO3. Would you use an acid or a base to test a rock sample to determine whether it contains calcium carbonate?
1 month ago
Identify each substance as an acid or a base. liquid drain cleaner, pH 13.5 milk, pH 6.6
1 month ago
Identify each substance as an acid or a base. liquid drain cleaner, pH 13.5 ✔ basic milk, pH 6.6 ✔ acidic Which substance would be the closest to a neutral pH?
1 month ago
Which substance would be the closest to a neutral pH?
1 month ago
Which substance would be the closest to a neutral pH? household bleach Vinegar Soda Blood
1 month ago
Choose the most acidic substance in the group. lemon juice, pH = 2.25 orange juice, pH = 3.75 milk, pH = 6.6 seawater, pH = 8
1 month ago
Select the pH value you would expect for each of these solutions. an aqueous solution of HNO3 an aqueous solution of NaCl an aqueous solution of NaOH
1 month ago
Choose the most alkaline substance in the group. soda, pH = 2.5 household vinegar, pH = 3 distilled water, pH = 7.0 milk of magnesia, pH = 10.5
1 month ago
Which of these substances has the highest pOH? 0.10 M HCl, pH = 1 0.001 M HNO3, pH = 3 0.01 M NaOH, pH = 12
1 month ago
Which of these substances is the most basic (alkaline)? solution A, pOH = 1.5 solution B, pOH = 7.0 solution C, pOH = 13.5
1 month ago
Simplify the rational expressions. mc001-1.jpg mc001-2.jpg mc001-3.jpg mc001-4.jpg
1 month ago
If an arithmetic sequence has the rule an = 3n + 5, then a4 = .
3 weeks ago
The fifth term of an arithmetic sequence is 96. Which rule could define the sequence? an = 5n + 96 an = 6n + 18 an = 18n + 6 an = 96n + 5
3 weeks ago
Write the explicit formula for the nth term of the given geometric sequence. 1, 5, 25, 125, . . . 5n 5n – 1 5n – 1 5n 1 + (n – 1)5
3 weeks ago
Identify the recursive formula for the following sequence: 8, 26, 80, 242, . . . an = an – 1 + 18 where a1 = 8 an = 3an – 1 + 2 where a1 = 8 an = 4an – 1 – 6 where a1 = 242 an = 8 + (n–1) · 18 where a1 = 18
3 weeks ago

Answers

The following answers were posted by visitors named 01236.