# Posts by pamela

Total # Posts: 178

**college chemistry**

How much heat is needed to convert 2.00 kg of liquid ammonia at -40.0 oC to its vapor at -11.0 oC? The specific heat of liquid ammonia, NH3 (l), is 4.70 J/g-K and that of the vapor NH3 (g), is 2.20 J/g-K. The enthalpy of vaporization of ammonia is 23.3 kJ/mol and its boiling ...

**biology**

Thank you!

**biology**

A group of specialized cells that transport fluids and nutrients is called a. a multicellular autotroph b. a methanogen c. an aggregation d. vascular tissue A?

**biology**

Thank you!

**biology**

Which of the following are NOT used to classify kingdoms of organisms? a. complexity of the organism b. invertebrate or vertebrate c. method of obtaining nutrition d. type of cell that makes up the organism D?

**math 4th grade**

You see that all the numerators (top numbers) are the same. The bottom numbers (denominators) tell us how big the pieces are. The larger the denominator, the smaller the pieces. So if the top numbers are the same, then the fraction with the biggest bottom number is the ...

**MATH**

The 6th octagonal numbr is 96. Verify this fact using the formula for O n.

**science**

how does air pressure affects the outer space

**chemistry**

What information does this value of Kc indicate with regard to the amount of NO(g)in the equilibrium mixture at a 25 degrees celcuis?THe cointainer is heated and the system reacheas a new equilibruim at 2500 degrees celcuis at this temperature there 0,4 moles of NO(g)present.

**7th grade math**

How do you figure out the place value of the stem and leaf of a stem-and-leaf plot???????????????

**Conflict Management Communications**

I would say yes. Your thoughts?

**Conflict Management Communications**

These are all good ones! What about terrorists and hardened criminals?

**Conflict Management Communications**

Provide 2 examples of passive aggressive societal groups and behaviors. I thought the KKK would be one good example, any other thoughts would be most appreciated! Thank yoU! :)

**7th Grade Literacy**

I think a class president needs to be twustworthy, responsible for his/her actions, and honest but that's my opion

**Language Studies**

I suppose these work. I think I am putting more thought than necessary into this question. Thanks for your insight!

**Language Studies**

What are some ways that language can be used to perform the act of giving someone a warning?

**Math**

If a car is driven 372 miles in 6.5 hours, then what is the average number of miles per hour?

**Quantitative Methods of Business**

Karl's monthly expenses are $3,000. Of this 1/4 is for the mortgage payment, 1/8 is for credit cards, 2/5 if for the car payment, and the rest is for food and miscellaneous expenses. What is the amount of Karl's car payment?

**Media Law**

What are the most pressing challenges facing U.S. copyright enforcement interests today in the context of the proliferation of overseas, especially third-world copyright piracy?

**Writing in Math**

Every digit in 8,999 is greater ,than any digit in 24,005 is greater than 8,999.

**Algebra Help**

Thanks! You have been a BIG help! I will do that!

**Algebra Help**

Thank you this really helps! So I got Exponential form is 2^-3 = 1/8 and To solve x = -3 So this is all of it?

**Algebra Help**

Now what about the Exponential form ? 2^-3 = 1/8 This isn't correct? If not then how do i show Let x = log_2 1/8 in exponential form?

**Algebra Help**

Solve for x i got, the exponential is the problem for me...Here is what i got for x. To Solve: 1/8=8^-1 8=2^3 1/8=2^3^-1=8^-1 =2^-3 Log_2 1/8 = log_2 2^-3 =-3log_2 2 x =-3 To Check: 2^x=1/8= 2^-3 x=-3

**Algebra Help**

x = log_ 2 2^-3 ? I am lost now. I really thought I had it from what I just posted. Exponential form is 2^-3 = 1/8 This isn't correct? To Check: 2^-3=1/2^3=1/8

**Algebra Help**

Let x = log_2 1/8 Write the exponential form of the equation and solve the equation for x. Does this work? Thanks! Exponential form is 2^-3=1/8 To Check: 2^-3=1/2^3=1/8

**Algebra**

Does this work? Thanks! Exponential form is 2^-3=1/8 To Check: 2^-3=1/2^3=1/8

**Algebra**

2x = 2^log2(1/8) 2x = (1/8) Are these acceptable answers?

**Algebra**

Let x = log_2 1/8 Write the exponential form of the equation and solve the equation for x.

**Algebra**

Suppose A is the amount borrowed, r is the interest rate (in decimal form), and m is the total number of monthly payments. Let w = (r)/(12) Then the formula to determine the monthly payment amount for a loan is given by (Aw)/1-(1)/(1+w)^m Suppose Alice buys a car and obtains a...

**Algebra**

I figured 4*4 = 16. This is not right is it?

**Algebra**

Would this be an appropriate answer for b? x= 4+3i/2, 4-3i/2

**Algebra**

Consider the equation 4x^2 – 16x + 25 = 0. (a) Show how to compute the discriminant, b^2 – 4ac, and then state whether there is one real-number solution, two different real-number solutions, or two different imaginary-number solutions. (b) Use the quadratic formula ...

**Math**

Gina plans to invest $12,000, part at 4% simple interest and the rest at 6% simple interest. What is the most she can invest at 4% and still be guranteed at least $650 in interest per year?

**Algebra**

Please help! I need to simplify this and am confused. (sqrt5 a^7/2)^4 a^3/a^8

**Environmental Science**

What would be some consequences if any of these resources would become limited. I need 1 for each of these: individual, community and population. I need to list the consequences for each of these 3 categories for each of the resources that I chose-the ones above that I ...

**Environmental Science**

Ok that is what I all have. What would be the consquences for not having air (oxygen-would be better) besides that plants would not be able to grow. What else would happen if there was no oxygen in the environment?

**Environmental Science**

I need to list 5 resources (natural resources) and list the consequences for each of them if we didn't have them.

**Environmental Science**

I was wondering what are some natural resources needed for survival and the consequences for not having those resources. I would like some research cites or cite your resources(where you got the info)

**Survery of Modern and Contemporary Art**

I am doing it on Art Nouveau Art and Architecture not Art Nouveau Architecture. These are different pieces. Is there anything good for this as well? I have to change what I was writing about.

**Survery of Modern and Contemporary Art**

I have to compare and contrast Rococo Architecture and Art Nouveau with political elements as well as historical relevance. I am having troubles finding information on these. Could you help me compare and contrast these, political elements and historical relevance. Can you ...

**4th grade**

health is eal

**grammar**

In which sentence does the verb correctly agree with the subject? 1) A copy of Moby Dick and a magazine has disappered form my room. 2) Peggy or Phyllis dirve me to Florida every winter. 3) Les and Miranda is late for work today. 4) Not only the muffler but also the spark ...

**English**

A)why was France willing to sell Louisiana, and why did the united states purchase it? B)What was the purpose of Pike's expedition, and where did he travel?

**Question.**

What does this Question mean to you: Does the Protection of self-incrimination violate the fifth amendment? Does the police practice of interrogating individuals without notifiying them of their right to counsel?

**Science-7th grade**

the sides of the DNA ladder are made up of molecules of the sugar______and_______.

**S.S**

What powers does the Executive Branch have over Legislative Branch?

**Health Research Project**

I understand what you are saying I did find a answer to all 8 questions but, like you said they were only about 2 Sentences and in my section of the instructions it states 4 sentences. If anyone has found anything more please let me know. Thank you

**U.S. history**

What were the requirements and benifits from being a robber baron in the 1800's?

**math**

How many degrees apart are the hands of a clock when it is four thirty

**statics**

Dullco Manufacturing claims that its alkaline batteries last forty hours on average in a certain type of portable CD player.

**environmental science**

The amount of water needed daily by plants for photosynthesis, cell growth, and cell maintenance is very small, and yet plants require large volumes of water in order to live. It is estimated that over 90 percent of the water absorbed by plants is lost into the air. Most of ...

**physics, social studies**

The amount of water needed daily by plants for photosynthesis, cell growth, and cell maintenance is very small, and yet plants require large volumes of water in order to live. It is estimated that over 90 percent of the water absorbed by plants is lost into the air. Most of ...

**AED 200**

My answer would be that I would incorporate learning tools, such as implimenting introducing art that can be conducted with little to no money, as far as social studies, I would introduce design a class flag.

**math**

Insert operation signs to make this correct: 2 _5_3 = 17

**6th Grade Math**

Sara is 1/4 the age of her father. Sara's father is 60. How many years older than Sara is Sara's father? _____ How many years ago was Sara 1/10 of her father's age? _____ How old was she then? ____

**6th Grade Math**

Marta's mother is 5 times as old as Marta. Marta's mother is 25. How old is Marta? ______ In a few years, Marta's mother will be 3 times as old as Marta. How old will Marta be then? ______ How old will Marta's mother be? ______

**communications**

How do I start writing the similiarities and differences between routing, positive, negative and persuasive messages

**S.S.**

how many mountains are in south america

**S.S**

how many mountains are in asia

**english**

a sentence with the word context

**Math-precalc**

Is it possible to find a rational function that has x-intercepts (-2,0) and (2,0), but has vertical asymptote x=1 and horizontal asymptote of y=0? The horizontal asymptote and the x-intercepts parts stump me. If you can't reach y=0, then how can you get the x-intercepts? ...

**Algebra/Pre-Calc**

Find the values for a and b such that f(x) is continuous on the interval 0 < or = to x < or = to 13. { 2x^2, 0 < or = to x < or = to 3 f(x) = { ax + 3, 3 < or = to x < or = to 7 { b, 7 < or = to x < or = to 13 Can someone explain? Am I suppose to find ...

**HELP**

How do you find acceleration and Fnet for a diagram containing only one object with a mass, like say 10kg, and two arrows going in the opposite directions(horizontally) with thier tips touching each side of the object. **NOTE: there are no other numbers other than the mass. If...

**Physics**

How do you find acceleration and Fnet for a diagram containing only one object with a mass, like say 10kg, and two arrows going in the opposite directions(horizontally) with thier tips touching each side of the object. **NOTE: there are no other numbers other than the mass. If...

**Microbiology**

What are the different types of vaccination materials?

**world history**

why has most of the world impacted continuity change, economics, technology, social and political systems? I am not sure what you are asking. Please repost with more specifics. I hope this helps a little. Thanks for asking.

**social studies**

if you do it once, it's good. If you do it twice on the same day, it's a serious crime. what is it? One possibility is getting married (to different people). However, both don't need to be done the same day to be a crime. I hope this helps. Thanks for asking.

**Science**

How has the study of cells affected science today?

**world history**

what were some of the weaknesses and limitations of the ancient chinese civilizations during the mongol and ming periods?

**world history**

what were some of chinas weaknesses and limitations? give examples from the mongols and the ming periods. These sites will give you some ideas of China's weaknesses. http://www.freetibet.org/info/facts/fact15.html http://en.wikipedia.org/wiki/Ming_Dynasty http://www....

**world history**

during the peloponnesian war the greek civilization suffered from political collapse.does that mean that the greek civilization fell? compare this situation with that of the ancient chinese civilizations. http://en.wikipedia.org/wiki/Peloponnesian_War The first sentence of the...

**social studies**

I'm writing an essay and would like to examine a few people's different opinions on this question in order to help me choose my own: Is the present US action in Iraq imperialism? Why? Thanks! You might browse the following search for ideas. http://www.google.com/search...

**world history**

As a result of the Peloponnesian war the Greek city-states suffered from political collapse.Are there any conclusions you can draw about how political collapse relates to the fall or survival of civilization? Well, if I understand the question correctly, it could be concluded ...

**international business**

Associated content is one word and is a web address they wont let you write it on this thing so hope you understood.

**international business**

I don't know if you got your answer yet It doesn't look like it so I would like to help you out. I would post the entire 3 page report that I wrote for this assinment but I think that would be going a little overboard. So instead I would like to give you an address ...

**international business**

I have use Jiskha Homework help for my AIU assinments. I think that if the teachers had a problem with it they would say something about it when I put it in my references. This is just like any other web resourse. As long as you don't use it word for word and you cite it ...

**Chemistry**

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