a certain reaction has the following generaln form

72,980 results, page 75

chem

Can someone check this for me? Predict which reactions are spontaneous: a) Zn(s) + 2H+(aq) --> Zn+2(aq) + H2(g) b) CaCO3(s) + 2H2O(l) --> Ca(OH)2(s) + H2CO3(aq) c) CH4(g) + O2(g) --> CO2(g) + 2H2O(g) d) Ag+(aq) + Cl-(aq) --> AgCl(s) I said a) and c) were ...

Government/Economics Check

Out of 48 questions I struggled with these. Could someone please check? These are multiple choice questions, so if I'm incorrect I can re evaluate my other choices. 1.) A system of social control under which a particular group has the power to make and enforce laws=Democracy 2...

physics

Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices. Rank these from easiest ...

physics

Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices. Rank these from easiest ...

physics

Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices. Rank these from easiest ...

science

How long does it take an M type star to form, compared to the time for a solar type star to form? A half as long B about the same time C twice as long D 20 times as long E 200 times as long dont know........ look at google

english

I have a test review and i need to know if i got these right. test is tommorrow so thanks for any help i can get. ........................ 1. Which of the following is a run-on sentence? A. The house was owned by the mayor. B. Mike joined the army, and he became more ...

English

I am in college classes and english has never been my strongest class. So I was wondering if anyone would look over my work and see if it is correct and if not offer suggestions for fixing. Thank you in advance. Each of the following sentences has one grammatical error. The ...

connections math

solve each equation and put it in simplest form. x/5=-2 A)-45 B)35 C)-10 D)21 ???? 13x-7=136 A)11 ******* B)15 C)8 D)9 solve the following equation. 3x-3=15 A)4 B)5 C)6 ****** D)7 ernesto lost 14.5 pounds what equation can we used to find how much we was before he lost? A)x+14...

Chemistry

--> Consider the following hypothetical acid-base reaction. A(aq) + B(aq) + C(aq) + D(aq) WA WB SA SB A. The position of the equilibrium shifts from left to right B. The position of the equilibrium shifts from right to left C. The position of the equilibrium doesn’t move ...

University English 101

Society often forces individuals to act a certain way. The manipulation of blending into the masses in order to follow the standards of society during the civil rights era is the main point of "The Library Card" by Richard Wright. In the fourth paragraph of the fourth page he ...

science

5. Which of the following causes clouds to form ? a) air cooling to its dew point b) water vapor condensing as it rises into cooler air c) air pressure rising above normal d) air pressure falling below normal 6. Which of these is least liekly to influence temperature ? a) ...

Chemistry

H6P6: Urbium Oxide First Part of the Question: Urbium (Ur) is an upscale element found in big cities. Its oxide (UrO2) is not very stable and decomposes readily at temperatures exceeding 66∘ C. The figure below shows how the rate of reaction varies with the concentration...

chemistry

Select all true statements from the following: a. ) Metals are good conductors of heat and electricity. b. ) Nonmetals generally react by forming covalent bonds (i.e. sharing electrons) or by gaining electrons to form anions. c. ) Halogen atoms have the highest ionization ...

chemistry

Select all true statements from the following: a. ) Metals are good conductors of heat and electricity. b. ) Nonmetals generally react by forming covalent bonds (i.e. sharing electrons) or by gaining electrons to form anions. c. ) Halogen atoms have the highest ionization ...

S.S

which of the following statements about why the pilgrims came to america is false? A) They thought bishops and priests had too much power over members. B) They wanted to escape from the high religious tension in England after the Protestant Reformation C)Some of them feared ...

writing

When a reporter makes a mistake in a magazine article, you can run a correction, but when a health care worker makes a mistake, someone can die. Reflecting on this statement, answer the following questions: * Should we hold people in certain professions to higher standards of ...

Math

An airplane flying at a speed of about 100 mph was once overtaken and passed by a flock of sandpipers! Suppose that a flock of these birds can fly at 110 miles per hour with a certain wind and at 90 mph against it. If they fly a certain distance with the wind and the same ...

Calculus (Urgent!!)

Hello everyone, I need help with the following problems. Find the partial derivative of the following: 1) f(X1, X2) = X1^1/2*X2^3/4 2) f(x1,x2,x3) = ln(x1)x2 + 3x3 3) f(x,y) = 3x + 4y 4) f(x,y) = x^1/2 +x/y + y/x Find the maximum of the following function: 1) f(x1,x2) = 5x1 - ...

chemistry

A 5.000 g sample of a mixture which contains MgCO3 and sand (SiO2) was heated for 2.30 hours until no further reaction occurred. It was then cooled and the residue, which contained MgO and unchanged sand, was weighed. The reaction is: MgCO3(s)  MgO(s) + CO2(g). The ...

Chemistry

Someone said, "Calculate the total delta H of the reaction and subtract the total delta H of the product from it. If you get a positive value, it radiates heat which means it's exothermic. If it is negative, heat is needed to get a reaction so it is endothermic." ...shouldn't ...

Chemistry

Someone said, "Calculate the total delta H of the reaction and subtract the total delta H of the product from it. If you get a positive value, it radiates heat which means it's exothermic. If it is negative, heat is needed to get a reaction so it is endothermic."  ...shouldn'...

statistic

Many wildlife populations are monitored by taking aerial photographs. Information about the number of animals and their whereabouts is important to protecting certain species and to ensuring the safety of surrounding human populations. In addition, it is sometimes possible to ...

chemistry

Given this data in a study on how the rate of a reaction was affected by the concentration of the reactants Initial Rate, RUN # A], M [B, M C], M mol L-1 s-1 1 0.200 0.100 0.600 5.00 2 0.200 0.400 0.400 80.0 3 0.600 0.100 0.200 15.0 4 0.200 0.100 0.200 5.00 5 0.200 0.200 0.400...

MATH

solve 1-(2/x)=2/(x+2) Express your answer in simplest radical form. What is radical form ne how? 1-(2/x)=2/(x+2) Multiply both sides by x(x+2): x(x+2) - 2(x+2) = 2x Note that we cannot allow x to be 0 or minus two because for these values the original equation is not defined. ...

Chemistry

.01 mols of a weak acid is dissolved in .1 L of water. That solution is then reacted with .01 mols of NaOH. Would the resulting solution be acidic, basic, or neutral? Why? What reaction equations support the explanation? I think the answer is that the resulting solution would ...

English

I forgot to include the following sentences. Thank you. I wanted to include an exercise on vocabulary related to kitchen equipment. Can you please help me find examples? I think I should improve my exercise. 1) Complete the following sentences with a suitable word. 1) A...

economics

How do an economist as a scientist and an economist as a policy advisor help to create understanding of economics? As a scientists, we conduct experiments and do research following the scientific method. (e.g., we observe a phenomena, form a hypothesis, gather data, test ...

physics

Suerat made paintings in which separate dots of color are placed close together on the canvas, and from a distance they merge in the eye to form an image. Consider such a painting with the dots in the painting separated by 1.7 mm and assume that the wavelength of the light is...

English

Can you tell me the grammatical error on the following sentences eg:subject-verb agrrement, run on sentence, verb form and tense, or sentence fragment. Also These sentences need to be re-written. 1. They is both happy. 2. at 3PM I will be feeding the ducks. At the park.. 3. ...

civics

John knows many people who feel that small business need more support from the government. They support tax break and other benefits for small business owners. Which of the following best describes the most effective type of action these people could follow? A. attack the ...

chem - precipitation problems

When hydroge sulfide gas is passed through a solution of lead (II) nitrate, lead (II) sulfide precipitates out. Write a balanced equation for this reaction and calculate an average rate, in mol/s for the reaction from this data: 1) at 0 seconds, mass of lead (II) sulide is 0 g...

chemistry

The reaction Cl(g)+ O3(g) --> ClO(g)+ O2(g) is the first-order in both reactants. Determine the pseudo-first-order and second-order rate constants for the reaction from the data in the table below if the initial ozone concentration was ..0000000000825 M or 8.25*10^-11 M. ...

chemistry

The reaction Cl(g)+ O3(g) --> ClO(g)+ O2(g) is the first-order in both reactants. Determine the pseudo-first-order and second-order rate constants for the reaction from the data in the table below if the initial ozone concentration was ..0000000000825 M or 8.25*10^-11 M. ...

Biochemistry

Urea is heated in a test tube. A condensation reaction occurs. Which one? What is the formula for this reaction? Then cupper sulphate and sodium hydroxide is added to the tube. This is compared to a tube in which cupper sulphate, sodium hydroxide and a solution of egg white ...

chem

A flask is charged with 1.596 atm of N2O4(g) and 1.008 atm of NO2(g) at 25°C, and the following equilibrium is achieved. N2O4(g)-> 2 NO2(g) After equilibrium is reached, the partial pressure of NO2 is 0.504 atm. (a) What is the equilibrium partial pressure of N2O4? for ...

Polar to Rectangular Form

The letters r and theta represent polar coordinates. Write each equation in rectangular coordinates (x, y) form. Let t = theta (1) r = sin(t) + 1 (2) r = sin(t) - cos(t)

Science

A desert would most likely form on the leeward side of a mountain. would it most likely form at the top or at the bottom of the leeward side?

Grammar

Complete the form as soon as possible, but no later than March 23th. Complete the form as soon as possible, but not later than March 23rd. Which sentence is correct?

chemistry

classify the compound as having ionic, polar covalent, or pure covalent bonds. Sb2P5 I know that a metal and nonmetal form an ionic bond, and two nonmetals form covalent bonds. The trouble I am having is that Sb is a metalliod and when it forms with a non-metal, what kind of ...

chemistry

Please help me and show me step by step. assume that the reactions are being performed at pressure of 1.2 atm and a temperature of 298K Calcium carbonate decomposes at a high temperature to form carbon dioxide and calcium oxide. How many grams of calcium carbonate will be ...

Economics

A description of the market form in which producers operate a detailed explanation,with graphs,of How the price of milk would have been determined in the absence of government involvement in the market a detailed explanation,with graphs,to show how this form of government ...

Chemistry

Silicon Carbide, SiC, is prepared by heating silicon dioxide in the presence of graphite. Carbon dioxide is the by-product of the reaction. How many grams of silicon carbide can be formed from the reaction of 50.0 grams fo graphite with 50.0 grams of silicon dioxide?

Chemistry

For the following balanced equation: 2 Ag+ (aq) + Cu(s) ---> Cu2+ (aq) + 2 Ag(s) Which letter corresponds to the correct cell notation at standard state conditions? A. Cu2+(aq)/ Cu(s) // Ag(s) / Ag+(aq) B. 2Ag+(aq)/ Cu2+(aq)// 2Ag(s)/ Cu(s) C. Ag+(aq) / Cu2+(aq)// Cu(s) / ...

art

The math tessellations: unit 4 1. The architectural design was created by: 1. using an organic pattern in the form of tessellation. 2. using a geometric pattern in the form a tessellation. 3. using no definite pattern and placing shapes randomly. 4. using patterns that ...

PLEASE HELP CHEM!

2 HgCl2 (aq) + SnCl2 (aq) --> SnCl4 (aq) + Hg2Cl2 (s) Hg2Cl2 (aq) + SnCl2 (aq) --> 2Hg (s) + SnCl4 (aq) For each reaction, write the two half-reactions that make it up and calculate the overall reaction potential by adding the two half-reactions. Each overall potential ...

chemistry

In a reaction, a chemist is observing the absorbance of CoCl2(aq) as a function of time to determine the rate at which it is being consumed in a reaction. At time t=10 s, the chemist determines that the concentration of CoCl2(aq) is 0.12 M. At time t=20 s, the chemist ...

Spanish: check answers

Questions: 3. Paella is a dish like tacos. a dish made of rice, seafood, and vegetables eaten in Spain. another name for enchiladas. 4. Fast-food restaurants in the Spanish-speaking world are generally very popular with adults. look similar to the ones in the United States and...

Chemistry

1.) Explain the similarity between Mg(OH)2 and Zn(OH)2 in particular why would any insoluble hydroxide tend to dissolve in an acidic solution? Are they both bases? 2.) Explain the difference in particular how does Mg^+2 appear to form complex ions with OH^- and NH3? If these ...

Algebra

1. Choose the correct solution in roster form. N is the set of natural numbers that are factors of 12. {1, 2, 3, 4, 6} {1, 2, 3, 4, 6, 12} {1, 2, 3, 4, 5, 6, 8, 12} *this is my answer {1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12} 2. Write the solution to the inequality in set-builder ...

chemistry

When a mixture of two black powders is heated, it gave off a gas which turned lime water milky Give a chemical equation to show the reaction between gas and lime water Red scales residue can be seen on the black residue. Name the red scales The red scale residue partly ...

chemistry

For reactions in solution, molar concentrations are usually used in equilibrium constant expressions (designated by K or Kc). In gases, partial pressures can also be used (designated by Kp). Equilibrium partial pressures of NOCl, NO and Cl2 in a container at 300 K are 1.2 atm...

Chemistry

A salt may be prepared by the reaction of one salt with another salt, particularly if one of the products is insoluble. In which one of the following reactions is this demonstrated? (NH4)2CO3 + K2SO4 \->(NH4)2SO4 + K2CO3 CuCl2 + 2 NH4NO3 \-> Cu(NO3)2 + 2 NH4Cl Sr(NO3)2...

Math

Post a New QuestionCurrent Questions Homework Help: Math Posted by Mikil on Wednesday, September 23, 2015 at 6:50pm. Write a linear equation in slope intercept form for each of the following: A line perpendicular to y=x+2 that passes through the origin. A line perpendicular to...

accounts

Ex 11.5 The year-end balance sheet of Jackson Products, INC., includes the following stockholders' equity section (with certain details ommited): Stockholders' equity: Capital stock: 7% cumulative preferred stock, $100 par value----$15,000,000 Common stock, $5 par value, 5,000...

chemistry

Hey, I need help finding out how many moles of CO2 is produced from this reaction. Any help is appreciated, thanks. Mass of empty Erlenmeyer flask (g): 88.000 g Mass of Erlenmeyer flask and 20 mL H2SO4: 112.198 g Mass of 20 mL H2SO4: 24.198 g Trial I Mass of Na2CO3 added to ...

impact of energy use

1. Fossil fuels are (1 point) • a natural resource. i pick this one • renewable. • made from minerals. •burned in hydroelectric plants. 2. Which of the following is a consequence of using fossil fuels as an energy source? (1 point) •decreased carbon dioxide levels...

Chemistry

Over the years, the thermite reaction (mixing of solid iron (III) oxide with aluminum metal) has been used for welding railroad rails, in incendiary bombs, and to ignite solid-fuel rocket motors. A. Write a balanced equation representing the reaction. B. What masses of iron (...

Metals

Transition metals (also called heavy metals) form insoluble compounds with hydroxide ions. Therefore, it is possible to extract heavy metal ions from water by raising the pH. The precipitation reaction between cadmium(II) and hydroxide is shown below. Cd2+(aq) + 2OH−(aq...

trig

evaluate the following in exact form, where the angeles alpha and beta satisfy the conditions: sin alpha=4/5 for pi/2 < alpha < pi tan beta=7/24 for pie < beta < 3pi/2 answer choices A. sin(beta+alpha) B. tan(beta-alpha) C. cos(alpha-beta)

mat/156

If p stands for this meal is delicious and q stands for busy people do not eat, write each of the following in symbolic form. Use this information to answer parts a through c. (A)This meal is delicious. (B)busy people do not eat or this meal is not delicious

chemistry

The reaction converting glycerol to glycerol-3-phosphate is energetically unfavorable by 9.2kJ. The reaction of ATP with water to yield ADP, hydrogen phosphate ion, and hydrogen ion is energetically favorable by 30.5kJ. These reactions are coupled so that the overall process ...

Chemistry

Calculate the enthalpy change, ΔrH, for the following reaction, 4 NH3 (g) + 5 O2(g) → 4 NO (g) + 6 H2O (g) given the thermochemical equations below. N2 (g) + O2 (g) → 2 NO (g) ΔrH° = +181 kJ N2 (g) + 3 H2 (g) → 2 NH3 (g) ΔrH° = 91.8 ...

chemistry

N2 + O2 --> 2 NO change in heat (delta H)= 43.2 kcal based on the reaction, which statement is true? a) 43.2 kcal are consumed when 1.00g of O2 reacts b) 43.2 kcal are consumed when 1.00g of N2 reacts c) 43.2 kcal are consumed when 1.00g of NO is produced d) 43.2 kcal are ...

Chemistry Eq. Question

3H2(g) + N2(g) reverse reaction arrow 2NH3(g) What factors would affect the equilibrium constant for the reaction above? (Select all that apply.) increasing the H2 concentration decreasing the NH3 concentration increasing the temperature decreasing the temperature increasing ...

CHEMISTRY

I need help with these problems ASAP: I need help setting these problems up: pleas!! (1)Calculate the volume of 1.87 M NaI that would be needed to precipitate all of the Hg+2 ion from 199 mL of a 1.96 M Hg(NO3)2. The equation for the reaction is 2NaI (aq) + Hg(NO3)2 (aq) ---&...

Chemistry

Acetic acid is a polar molecule and can form hydrogen bonds with molecules. Therefore, it has a high soulubility in water. Yet acetic acid is also soluble in benzene (C6H6), a nonpolar solvent that lacks the ability to form hydrogen bonds. A solution of 3.8g of CH2COOH in 80 g...

Chemistry

Refer to the net ionic equation below to answer the following questions: Co(H2O)6^+2 + 4Cl- <==> CoCl^-2 + 6H2O 1. In what direction was the equilibrium shifted by: a. Addition of HCl b. Addition of water c. Addition of AgNO3 d. Increasing the temperature e. Decreasing ...

french

how do i do subjontive? how do i know that i am doing it right? the endingings : e,es,e,ions,iez,ent - do i use those for every verb i use? for -ir verbs, do i also add -iss, or is that onlyfor imparitive? merci! Thank you for using the Jiskha Homework Help Forum. It would ...

math help & correction

Problem #1 Is this correct or wrong? Find the slope of the line passing through the points(-1, -1)and(-1, 2). Write the equation of the line. For this one I KEEP GETTING Y= - (3)/(2)x-2.5 Problem #2 Find the y-intecept and slope of 7x+9y=72 My answer: Slope is: - (9)/(8) y-...

chemisty

I was told to post at the beginning of the page: not sure if I did so or how to really do it but i'm posting the question again): Diiodine pentafluoride reacts spectacularly with bromine trifluoride to form iodine pentafluoride, oxygen gas, and liquid bromine. In a particular ...

Chemistry

When 0.655 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 107C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...

MANAGEMENT ACCOUNTING

COSTS CAN BE CLASSIFIED INTO TWO CATEGORIES FIXED AND VARIABLE COSTS THESE COST BEHAVE DIFFERENTLY BASED ON THE LEVEL OF VOLUME SUPPOSE WE ARE RUNNING A RESTAURANT AND HAVE IDENTIFIED CERTAIN COST ALONG WITH THE NUMBER OF ANNUAL UNIT SOLD OF 1000 TOTAL COST OF RAW MATERIAL ...

Temperature

Q: A reaction rate has a constant of 1.23 x 10-4/s at 28 degrees C and 0.235 at 79 degrees C. Determine the activation barrier for the reaction. A: My work thus far: ln(1.23 x 10-4/0.235)=(Ea/8.314)(1/79-1/28) -7.551=(Ea/8.314)(0.01265-0.03571) -7.551=(Ea/8.314)(-0.02305) 327....

English

1. Read the following lines from "Thoughts of Hanoi." Brother, How is all that now? Or is it obsolete? Are you like me, Reliving the past, Imagining the future? Do you count me as a friend or am I the enemy in your eyes? Brother, I am afraid That one day I'll be with the March...

chemistry

Ammonia reacts with oxygen in the presence of a platinum catalyst to give nitric oxide and water, according to the following gas phase equilibrium: 4NH_3(g) + 5O_2(g) <---> 4NO(g) + 6H_2O(g) ÄH = −906 kJ mol^−1 What is an appropriate equilibrium expression ...

Chemistry

1. Cisplatin is an anti tumor agent. It has the molecular formula Pt(NH3)2Cl2. How many grams of cisplatin can be produced if the limiting reactant is 1 kg of platinum? I got 1538.1 g Pt(NH3)2Cl2. 2. Hydrogen cyanide is used in the production of cyanimid fertilizers. It is ...

chemistry 20 MC questions

1- The equipment needed to carry out a titration is: A) hot plate, pipet, and filter paper B) heat source, test tube, and filter paper C) heat source, pipet, and burette D) erlenmeyer flask, pipet, and burette 2- A student correctly predicted that 10.0 g of a precipitate would...

Chemistry

Predict the effect of each of the following on the indicated equilibrium system in terms of which reaction will be favored (forward, reverse, or neither) H2(g)+Cl2(g)<=>2HCl(g) +184 kJ A)addition of Cl2 B)removal of HCl C)increased pressure D)decreased temperature E)...

Math

Chris withdraws $7.50 per week from his savings account. After 15 weeks, the balance in the account is $585. A. Write an equation in point -slope form to model this. B. Write the equation in slope-intercept form. C. How much is in the account after 1 year (52 weeks)? ;Details ...

Algebra 2

Hey I am working on math homework that involves "Standard Form to Vertex Form by Averaging." My class is just starting to learn this today, but I am totally lost still on what to do. Can you please help? The formula for this is y=a(x - h)^2 + k the h is the x-value vertex and ...

Help in Chemistry!!

You are given an aqueous solution of hydrofluoric acid. (Recall that hydrofluoric acid is a weak acid; When you are given an aqueous solution of a weak acid you always assume that the dissociation reaction of the acid in water has reached equilibrium) Predict whether the ...

Chemistry help please!

For each product of the following unbalanced equations which reactant is limiting, and calculate the mass of each product that is expected. 1) 2Al + 6HCL --> 2AlCl2 + 3H2 15.0gAl * 1moleAl/26.981gAl * 2moleAlCl3/2moleAl * 133.34gAlCl3/1moleAlCl3= 74.1gAlCl3 15.0gHCL * ...

Math

Part 1: Answer the following question: In a survey of students about favorite sports, the results include 22 who like tennis, 25 who like football, 9 who like tennis and football, 17 who like tennis and baseball, 20 who like football and baseball, 6 who like all three sports, ...

Algebra

Part 1: Answer the following question: In a survey of students about favorite sports, the results include 22 who like tennis, 25 who like football, 9 who like tennis and football, 17 who like tennis and baseball, 20 who like football and baseball, 6 who like all three sports, ...

English

Complete the sentence by writing the correct form of the word in parentheses. You may not need to change the form that is given. 1. She made her fortune in the ____ market before she became a full-time philanthropist. (security) Would the correct answer be "securities"? This ...

Physics

Hello everyone I know that when a force is applied it has to exert a force opossite But this really is not in my head can someone please give me an evidence or even a diagram showing how can we exert an opposite force if we are walking forwards Thanks alot When we are walking ...

Hard Math :(

2. What answer represents this number in scientific notation? 0.00000916 a. 916 x 10^-8 b. 9.16 x 10^-6 c. 916 x 10^8 d. 9.16 x 10^6 3. What is this number in standard form? 6.8 x 10^-4 a. 5,750,000,000 b. 575,000,000,000 c. 0.00000000575 d. 0.575000000000 5. What is this ...

chemistry

Nitrogen gas, N2, is usually a very inert gas and thus, is often employed in dry boxes. However, it would be a poor choice for use in a dry cell with which of the following substances? A) uranium metal B) Cu/Sn alloys C) Li metals D) Ca metals E) none of these can anyone help ...

algebra

how long will it take for the population of a certain country to double if its annual growth rate is 7.9%?( round to the nearest year)

CRIMINOLOGY

in 1993, the life expectancy of males in a certain country was 68.6 yrs. in 1997, it was 71.0 . the linear function that fits the data is what

Precalc

What name is given to figures (wave) to indicate that points are attracted to only certain regions in the plane and no to others?

chem

the root mean square speed of a certain gaseous oxide is 493 m/s at 20 C. what is the molecular formula of the compound. how is the answer NO???

Chemistry

A certain substance has a heat of vaporation 56.21 kj/mol. At what kelvin temperature will the vapor pressure be 6.50 times higher than it was at 361k? Thank you

Chemistry

A certain substance has a heat of vaporation 56.21 kj/mol. At what kelvin temperature will the vapor pressure be 6.50 times higher than it was at 361k? Thank you

Chemistry

A certain substance has a heat of vaporation 56.21 kj/mol. At what kelvin temperature will the vapor pressure be 6.50 times higher than it was at 361k? Thank you

Chemistry

A certain substance has a heat of vaporization of 34.65 kj/mol. At what kelvin temperature will the vapor pressure be 3.50 times higher than it was at 331 k?

chemistry

invent a term to describe a certain number of something you use that isn't already being used. Define and explain

Science

The ripples in a certain groove 12.7 cm from the center of a 33-rpm phonograph record have a wavelength of 1.75 mm. What will be the frequency of the sound emitted?

calculus

The base of a certain solid is the triangle with vertices at (-14,7), (7,7), and the origin. Cross-sections perpendicular to the y-axis are squares. What is the volume?

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