Thursday
November 27, 2014

Posts by morgan


Total # Posts: 518

Math
3/4 divided by 2/3 is the same as 3/4 multiplied by 3/2. The answer is 9/8.
November 26, 2014

chem please help
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules Do not give me a website to ...
November 26, 2014

chem please help
At temperatures above 0°C, what is the sign of the change in free energy for the conversion of liquid water to ice? A. Positive B. Zero C. Negative D. Not known
November 26, 2014

Chem please help
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
November 26, 2014

chem please help
If the ΔH for H2O(l) → H2O(s) is -6.01 kJ, then what is the ΔH for 2H2O(s) → 2H2O(l)? A. -12.02 kJ B. 6.01 kJ C. -6.01 kJ D. 12.02 kJ I think d.
November 26, 2014

chem please help drbob222
I think the answer is d or b.
November 26, 2014

chem please help drbob222
What will be the result of a reaction if its enthalpy change is positive, its entropy change is negative and Gibbs free energy is positive? A. Spontaneous, if the temperature is high B. Nonspontaneous, if the temperature is low C. Always spontaneous D. Never spontaneous
November 26, 2014

chemistry
The G value for formation of gaseous water at 298 K and 1 atm is -278 kJ/mol. What is the nature of the spontaneity of formation of gaseous water at these conditions? A. The reaction is never spontaneous. B. The reaction is sometimes spontaneous. C. The reaction is spontaneous...
November 25, 2014

chem please help
What is steel? A. It is a compound of iron and various other elements including carbon. B. It is an ionic substance made of iron and various other elements including carbon. C. It is an alloy of iron and various other elements including carbon. D. It is a composite of iron and...
November 25, 2014

Chem please help
Which of the following correctly describes the net energy change during a reaction? A. The net change in energy is negative for endothermic reactions where energy is required. B. The net change in energy is positive for endothermic reactions where energy is required. C. The ...
November 25, 2014

Chem please help
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
November 25, 2014

chem please help drbob222
the answer was d It helps in determining which metal uses less energy during refining.
November 25, 2014

chem please help drbob222
Why is the process of examining enthalpies of a reaction helpful? A. It helps in determining how a reaction occurs spontaneously. B. It helps in determining the temperature that a reaction requires to proceed. C. It helps in determining how fast a reaction will proceed. D. It ...
November 25, 2014

chem please help drbob222
In the roasting of zinc ore, the total enthalpy for the reactants is -412.0 kJ and the total enthalpy for the products is -1294.54 kJ. What is the enthalpy for the roasting reaction? A. 882.54 kJ B. -1706.54 kJ C. 1706.54 kJ D. -882.54 kJ I think the answer is d.
November 25, 2014

chem please help drbob222
When is there a need to determine G? A. When H > 0 and S = 0 B. When H > 0 and S > 0 C. When H = 0 and S < 0 D. When H > 0 and S < 0 P.S. there are triangles before the G, H, and S.
November 25, 2014

chem please help drbob222
I knew that. It doesn't match any of the answers
November 25, 2014

chem please help drbob222
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
November 25, 2014

Chemistry
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
November 25, 2014

chemistry
the answer is b
November 25, 2014

chemistry
What is ΔH in the equation ΔG = ΔH - TΔS? A. The change in specific heat between the products and the reactants B. The change in enthalpy between products and reactants in a reaction C. The change in entropy between products and reactants in a reaction D. ...
November 25, 2014

chemistry
Nope. This is AP chemistry.
November 25, 2014

chemistry
What would cause entropy to increase in a reaction? A. The products forming a more rigid structure B. The products forming an ordered pattern C. The products becoming more spread out D. The products forming fewer molecules I think the answer is c or d
November 25, 2014

Chemistry help drbob222
Which of the following processes would result in a negative entropy change? A. Leaves falling off a tree B. A deck of cards falling on the floor C. A piece of cake crumbling as it is cut D. A student filing papers I think d
November 25, 2014

American history
I have to answer these questions: 5. Compare the viewpoints of the senators in the Versailles Treaty. 6. What was the final outcome of the Treaty of Versailles for the United States? 7. How was the map of Europe and the Middle East transformed as a result of the treaty? Please...
November 24, 2014

Chem please help
What does the second law of thermodynamics say about entropy? A. Only changes in entropy can be measured. B. The entropy in a system is zero at equilibrium. C. The entropy in a system and its surroundings tends to increase. D. Entropy cannot be created or destroyed. I think c.
November 24, 2014

chem please help
What characteristic best describes the low entropy associated with solids? A. The atoms in a solid are mostly metals. B. The atoms are held together with strong bonds. C. The atoms are arranged in a rigid structure. D. The solid has a high specific heat capacity. I think c.
November 23, 2014

Chem please help
Which of the following would have the greatest entropy? A. Water placed in the refrigerator B. Water sitting out on the kitchen counter C. Water vapor D. An ice cube I think c what about you drbob222
November 23, 2014

Chemistry help drbob222
Hows this: The first area has the temperature of 18 degrees Celsius while the second area has the temperature of 45 degrees Celsius. It is proven that thermal energy is connected with kinetic energy. In other words, the higher temperature of the second area shows us that the ...
November 22, 2014

Chemistry
I have an assignment. It has two boxes to model the particles of the same gas at different temperature (18 and 45 degrees Celsius). I have to write two or three sentences relating the temperature, the average kinetic energy, and the motion of the particles in the two boxes. ...
November 22, 2014

Chemistry
The solvability rules is your best bet with this type of situation. You could always google the product to read about its state at normal temperatures and pressures. Would you like me to give you the solvability rules?
November 22, 2014

Chemistry
Which of the following chemical reactions is an example of an endothermic reaction? A. Making ice cubes from liquid water B. Burning a candle C. The evaporation of water D. The combustion of gasoline I think c
November 22, 2014

chemistry
What is the purpose of a calorimeter? A. To determine the temperature of a chemical reaction B. To determine the energy changes of a chemical reaction C. To identify the specific temperature of an unknown substance I think the answer might be c
November 22, 2014

chem please help
In the reaction AgNO3(aq) + HCl(aq) AgCl(s) + HNO3(aq) + heat, when 0.70 mole of AgNO3 and 0.70 mole of HCl react, the temperature of 50 g of water increases from 15°C to 30°C. If the specific heat of water is 4.18 J/g•°C, how much energy was produced in the ...
November 22, 2014

chemistry
d is the answer
November 22, 2014

help almost due
Is the answer a or d
November 22, 2014

chemistry
Which of the following contains more thermal energy? A. Water at 100°C B. Ice at 0°C C. Water at 0°C D. Steam at 100°C I think d
November 22, 2014

chemistry due soon
Which of the following phrases can describe an endothermic process? A. A system gives off energy as it cools down. B. Energy is released in forming the bonds of the product molecules in a reaction. C. The net energy change for a reaction is positive. D. Energy is transferred ...
November 22, 2014

Chemistry
Hf < 0 implies which of the following? A. The temperature decreases B. The temperature remains the same C. A bond-forming process D. A bond-breaking process I think the answer is a.
November 22, 2014

chem please help drbob222
answer is a
November 22, 2014

chem please help drbob222
Two objects A and B have the same mass and the same specific heat. Object A is heated from 30°C to 70°C and object B is cooled from 70°C to 30°C. How are the thermal energies of the two objects related after the temperature change has occurred? A. The thermal ...
November 22, 2014

Physics
Thanks!
November 21, 2014

Physics
Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.1 kg · m2 and an angular velocity of +8.0 rad/s. Disk B is rotating with an angular velocity of -10.2 rad/s. The two disks are then linked together without the aid of any external torques, ...
November 21, 2014

History WWI
What was the day of surrender know as for WWI? I know a lot about WWII but not a lot about WWI. The real question was "When was the surrender of WWI? What do you know the day as?" I know the surrender was on november 11, 1918.
November 20, 2014

Stats
How do you find SSA, SSB & SSE??
November 18, 2014

Spanish don't know which to choose
the answer is probably pide or pregunta I just don't know which one
November 18, 2014

Spanish don't know which to choose
but there two different verbs
November 18, 2014

Spanish don't know which to choose
they all mean to ask how does that help me
November 18, 2014

Spanish don't know which to choose
La maestra _____ la tarea. pregunte pida pide pregunta
November 18, 2014

math
x^2 + xy +2x -36-12x-x^2 or -(x^2 + 12x +36) -y^4 + 5y^2 -6 or-(y^4 - 5y^2 + 6)
November 18, 2014

sixth grade ratios and rates
well tom's bag is 25% blue (5/20). Since Jasper has 12 blue you would have to multiply by four to get the total number of marbles (48). Finally you would subtract the number of blues from Japer's total (48-12=36).
November 17, 2014

chem please help drbob222
The answer was b if you were wondering. Thanks anyway you have helped me so much with my chemistry.
November 17, 2014

chem please help drbob222
If the internal energy of an object remains constant, which of the following statements is true regarding the object's potential energy? A. It remains the same when the object's velocity increases. B. It decreases when the object's velocity increases. C. It ...
November 17, 2014

Chem please help
I but in different numbers and it seems that b and d are answers
November 17, 2014

Chem please help
An object A has half the mass and twice the velocity of object B. How are the kinetic energies of A and B related? A. The kinetic energy of B is 4 times that of A. B. The kinetic energy of B is twice that of A. C. The kinetic energy of A is the same as that of B. D. The ...
November 17, 2014

chem please help
Which of the following is true about work? A. Work depends on time. B. Work helps retain the state of matter. C. The SI unit of work is the watt. D. Work can cause a change in the form of matter. I know it is not a or b so whats the answer
November 17, 2014

Chem please help
Which of the following will have the most freely moving particles within it? A. Water at 100°C B. Water at 0°C C. Ice at 0°C D. Steam at 100°C I think the answer is a or d; however, I am favoring d.
November 17, 2014

Chem please help
An object with high thermal energy will also have which of the following? A. Low internal energy B. High kinetic energy C. High potential energy D. Low kinetic energy I have no idea
November 17, 2014

AP Chemistry
Never mind d was the correct answer
November 17, 2014

AP Chemistry
Which of the following statements is true regarding two points within a system? A. They will have different types of particles. B. They cannot interact with each other. C. They have different boundaries. D. They have the same internal energy. Im think the answer is d.
November 17, 2014

AP Chemistry
Two objects A and B of different size are both at a temperature of 500 K and are connected by a rod (A looks four times larger than b). What will be the nature of transmission of heat? I believe there won't be a transmission of heat. Any thoughts. Here are the options A. ...
November 17, 2014

English
Thank you so much. I guess thats what they meant by the diction. I knew the diction was factional
November 16, 2014

English
So is the tone like satisfactory or acceptance in had work
November 16, 2014

English
what does the diction and details reveal about the tone in this passage. "When first I took up my abode in the woods, that is, began to spend my nights as well as days there, which, by accident, was on Independence Day, or the Fourth of July, 1845, my house was not ...
November 16, 2014

English
Whats a type of tone that would explain the feeling of difficulty or a challenge .
November 16, 2014

English
How does that help me with the tone. Is it an unsatisfactory tone
November 16, 2014

English
I talked with my sister and she thinks it a rugged tone. Any thoughts. P.S. I never uses wikipedia and do not plan to use it now. It is an unreliable resource that my teacher would not tolerate.
November 16, 2014

English
Ok, is it a solemn tone
November 16, 2014

English
That's the thing. I am not sure how he feels. His diction is like factual
November 16, 2014

English
So wait now I am even more confused than I started. How do I find the tone
November 16, 2014

English
it was a tough environment to be living in. What do you think the tone is
November 16, 2014

English
I can't this of a good word but basically a (tough) tone.
November 16, 2014

English
It sounds like in a an unfinished cabin in the woods making it cold at night.
November 16, 2014

English
The idea is to explain how it was like living where he was living I think
November 16, 2014

English
I don't understand what the diction or tone is
November 16, 2014

English
what does the diction and details reveal about the tone in this passage. "When first I took up my abode in the woods, that is, began to spend my nights as well as days there, which, by accident, was on Independence Day, or the Fourth of July, 1845, my house was not ...
November 16, 2014

English
I am supposed to paraphrase the ideas that Emerson introduces in this passage "There is a time in every man's education when he arrives at the conviction that envy is ignorance; that imitation is suicide; that he must take himself for better for worse as his portion...
November 16, 2014

Math
b is the answer Think about it two white, two blue, two red, and two yellow makes eight. than the night has the third one.
November 16, 2014

Chem HW
This website is not designed to do your homework. Ask each question individually with an what you understand and don't understand.
November 16, 2014

Still need help
Ok now I understand what the meter is. I still don't understand how stressing these syllables would effect the poem. Also whats the the poem’s subject matter? This poem uses to many nonword that I can't pick it out.
November 15, 2014

English
Review the metric pattern in “Old Ironsides.” How does this meter reflect the poem’s subject matter? I know this is not a do your homework website. I have been on this question forever. I only know the definition to a meter. So I would really like some help with...
November 15, 2014

math
There is no inverse. Did you forget the x?
November 15, 2014

MATH!!!
First multiply the fractions so the denometor is the same. 1/2=4/8, 1/8, and 2/8. SO you can see that the first three children have 7/8 of the estate meaning that the last one gets 1/8. Make sense?
November 14, 2014

english
Sorry Tatyana, I knew the answer was b. I don't know why I typed d.
November 14, 2014

english
I think the answer is d. What do you think?
November 14, 2014

Statistics
The probability is 4.5 people.
November 14, 2014

HEALTH
Ok here it goes 1. carbon dioxide 2. alveoli 3. oxygen is being delieverd more adequately 4. oxygen
November 14, 2014

Health And Physical Ed
Well if the burn truly is severe you should get medical help. Things you can do for burns are run cold water over burn, aloe, or prescription drugs that you can buy from your health care provider.
November 14, 2014

Social studies
false
November 14, 2014

Organic Chem
First find limiting reactant (KO2). The answer for the first question is 9 mols of oxygen. For the second question 100/(9*16) * 100% = 69.4%
November 14, 2014

Algebra 2
well first you can simplify by (x+4)^2=16/9
November 13, 2014

Average problem word solving epicness
(55+60+65+65+x)/5=65 x=80 so on the fifth subject he needs an eighty.
November 13, 2014

Hi (I know I asked the same thing)
the answer is b. The larger a negative number the smaller it is.
November 13, 2014

chemistry
thats not algebra
November 12, 2014

history
federalists
November 12, 2014

Math please help
Use the limit process to find the slope of the graph of sqrt(x + 8) at (8, 4).
November 10, 2014

Math please help
So is there an answer or is it undefined
November 10, 2014

Math please help
This deals with the slope not the area
November 10, 2014

Math please help
This is a very different problem.
November 10, 2014

Math please help
Use the limit process to find the slope of the graph of sqrt(x + 8) at (8, 4).
November 10, 2014

pre calc
Use the derivative of f(x) = 6x7 + 7x6 to determine any points on the graph of f(x) at which the tangent line is horizontal.
November 10, 2014

Pages: 1 | 2 | 3 | 4 | 5 | 6 | Next>>

Search
Members