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August 20, 2014

Posts by Liz


Total # Posts: 1,149

Phyiscal science test monday
The following is a periodic table below All the letters are in squares The S = an empty square 13 Colums in total Questions: 1. Which pair of eleemtns has hte same number of valence electrons? clueless 2. What pair of elements is in the same period? D and R 3. Which pair of ...
November 4, 2007

physical science
How is an electron related to an electron cloud
November 4, 2007

physical science
How is a subatomic particle related to atomic mass unit How is an electron related to enrgy level. Our study guide asks 1 to 2 sentences
November 4, 2007

physical science
how is an electron related to atomic mass how is an isoptope related to mass number I truly do not understadn how they are realted any help
November 4, 2007

physical science
how is an electron related to atomic mass how is an isoptope related to mass number
November 3, 2007

physical science
how is subatomic particles related to atomic mass unit how is an electron related t oenergy level
November 3, 2007

physical science
How is an isotope and a nuetron related? how is an atomic number and a proton realted?
November 3, 2007

physical science
What is the substance name for NH3
November 3, 2007

physical science
is AL ( aluminium) an element compound formula atom molecule
November 3, 2007

physical science
Most easily observed in the behavior of large objects electromagnetic strong force gravity weak force I answered electromagnetic
November 3, 2007

physical science
the greatest of the 4 forces would be strong force not electromagnetic force - I am a little confused from the reading
November 3, 2007

physical science
which one opf the 4 forces opposes the electromagnetic force in the nucleus of an atom: strong force weak force gravity I thought it was stong force
November 3, 2007

physical science
O = oxygen o2 = ??? it ask for us to name the substance.
November 3, 2007

physical science
we have a whole list and I am confused and can someone help me with the first 2 as a reference to use. substance O substance O2 **these are both seperate lines** name = under the rest we check appropriate box element compound symbol formula atom molecule
November 3, 2007

physical science
which one is responsible for holding an atom together strong force weak force electromagnetic gravity I answered both weak force and strong force
November 3, 2007

physical science
which one opf the 4 forces opposes the electromagnetic force in the nucleus of an atom: strong force weak force gravity I thought it was stong force
November 3, 2007

physical science
is this correct or incorrect nonmetal are elements that tend to gain electrons in chemical reactions.
November 3, 2007

phyiscal science
which one opf the 4 forces opposes the electromagnetic force in the nucleus of an atom: strong force weak force gravity I thought it was stong force
November 3, 2007

phyiscal science
I have to choose one as the greatest of the 4 forces. gravity - weakest weak force - no so it would have to be strong force or electromagnetic force
November 3, 2007

phyiscal science
can you help me with the first two - I have a chart of 20. Substance O - check any appropriate element - compound - symbol-formula - atom - molecule Substance O2 - check any appropriate element - compund - symbol-formula- atom - molecule
November 3, 2007

physicalscience
1. which one of the 4 keeps electrons in orbit around the nucleus? electromagnetic force weak force strong force gravity 2. which is the greatest of the 4 fources
November 3, 2007

physical science
is this correct if not we are to replace the word families elements that have the properties of both metals and non-metals are called families I think it is metaloids?
November 3, 2007

physical science
a family of elements is the same as a group. is this or should it be a family of elements is teh same as a column
November 3, 2007

physical science
a family of elements is the same as a group. The word groud needs to be replaced with the correct word????
November 3, 2007

physical science
is a property of metals luster
November 3, 2007

physical science
the question ask if charcoal has a luster - and is maleable. I know it is not maleable - but does it have a luster - I am guessing no.
November 3, 2007

physical science
Thanks got thru all but one Element P has an atomic number of 92 and atomic mass of 238. Element s has 92 protons and 143 neutrons. atomic number and protons are the same would htese two elements be an isotope or different elements
November 2, 2007

physical science
Can someone explain this to me. Element D has 6 protons and 7 neutrons Element F has 7 protons and 7 nuetrons are the pair isotopes or different elements
November 2, 2007

Algebra
?I was wondering if you could tell me
October 29, 2007

math
there are 3 dwrs
October 29, 2007

math
Low-voltage lighting is a popular feature of landscaping. Two pathways meet at 30 degrees to each other. One pathway has the lighting, and the first light is placed where the two paths meet. The distance between successive lights is 5m, and each has a range of effective ...
October 29, 2007

Algebra
please check my answers. thanxs! Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation. x^2 - 6x + 5 > 0 -I got (-ininity,1) u (5, infinity) x^2 - 3x - 18 < 0 -I got (-infinity,-3) u (6, infinity) x^2...
October 24, 2007

Inequality
please check my answers. thanxs! Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation. x^2 - 6x + 5 > 0 -I got (-ininity,1) u (5, infinity) x^2 - 3x - 18 < 0 -I got (-infinity,-3) u (6, infinity) x^2...
October 23, 2007

Chemistry
thank you!
October 17, 2007

Chemistry
1.What is the formula for finding percent water hydrates? 2. And what is molecular formula?
October 17, 2007

science
physical or chemical change 1. a water molecule gains enough energy to enter the vapor phase? 2. anti freeze is added to a car radiator to lower the freezing point. 3. a glowing splint placed in a test tube causes it to make a loud "pop"
October 6, 2007

physical science
can two or more elements be combined chemically to make a new element? Explain. My answer: No, it becomes a compound which is a substance combined of two or more elements chemically combined not sure if correct - I am doing the review and not sure of a few questions thanks
October 6, 2007

physical science
Does not settle on standing: I answered homogeneous mixture - solution and compound is this correct? Can seperate when allowed to stand alone I answered heterogenous mixture * choices solution, compund, heterogenous mixture and homogeneous mixture
October 6, 2007

physical science
does not settle on standing? homogeneous mixture, solution and compound is this correct? can seperate when allowed to stand? only heterogenous mixture.
October 6, 2007

physical science
SO CONFUSED???? IS suntan lotion a homogeneous or heterogenous mixture and do heterogenous mixtures often appear clody GRATEFUL
October 6, 2007

science
is salad dressing - homogenous or heterogenous if it is homogenous is it solution or colloids 8th grade science " just says salad dressing"
October 5, 2007

science HELP
these are the ones we could not figure out? Are these heterogenous or homogenous ( if homogenous are they solutions or colloids) lemonade brass paint suntan lotion stainless steel
October 5, 2007

Math
4/5 of 10=
October 3, 2007

spanish
To circle the indirect object pronouns and draw an arrow to the indirect objects they stand for. Es muy divertido comprar regalos para mi familia y mis amigos. I circled regalos and drew the arrow to mi familia y mis amigos QUESTION: is regalos circled or just the los( in ...
October 1, 2007

spanish
To circle the indirect object pronouns and draw an arrow to the indriect objects they stand for. Es muy divertido comprar regalos para mi familia y mis amigos. I circled regalos and drew the arrow to mi familia y mis amigos QUESTION: is regalos circled or just the los( in ...
October 1, 2007

SPANISH HELP HELP
To cirle the indirect object pronouns and draw an arrow to the indriect objects they stand for. Es muy divertido comprar regalos para mi familia y mis amigos. I circled regalos and drew the arrow to mi familia y mis amigos QUESTION: is regalos circled or just the los( in ...
October 1, 2007

English
CHOICE OF WORDS " perfidy and usurpations" which goes in each BLANK I looked these up in 4 places and I am still confused they seem to have very similar meanings - I think 1 = perfidy and 2 = usurpations 1. We have already seen " circumstances of cruelty and ...
September 30, 2007

English
In matching vocabulary for the constitution I can not figure out the last two. CHOICE OF WORDS " perfidy and usurpations" which goes in each BLANK 1. We have already seen " circumstances of cruelty and ___________ scarcely paralleded in the most barbarous ages...
September 30, 2007

spanish
hi thanks can you please send me the chart on direct and indirect pronouns
September 27, 2007

spanish help PLEASE
I answered le le me te * most confused with # 2 b/c it then the sentence read le la 1. El camarero va a traer ____ la cuenta a mi papa 2. A mi hermana Elena _____ encanta el flan 3. a mi ____ gustan las papitas 4. A ti ___ gusta el jamon
September 27, 2007

SPANISH one more ??
in the following sentence I am to cirle the indirect object pronouns and draw an arrow to the direct object they stand for. A mi me gusta ir de compras. Es muy divertido comprar regalos para mi famililia y mis amigos. MY ANSWSER is this correct. ** cirled me arrow to a mi ** ...
September 27, 2007

Spanish SO confused
Hi thanks for the help? Which are the correct indirect pronouns for the following: me te le nos les 1. El camarero va a traer ____ la cuenta a mi papa 2. A mi hermana Elena _____ encanta el flan 3. a mi ____ gustan las papitas 4. A ti ___ gusta el jamon
September 27, 2007

spanish HELP HELP
Indirect verbs me te le nos os los Hi I am trying to see if I did these right? We are asked to fill in the blank with the indirect object pronoun. It seems like each of these is le ( in the blank ) help so confused!!!! 1. Hoy mi madre ____ va a pedir al camarero los camarero ...
September 26, 2007

Science
How does its mass affect the way an object moves
September 19, 2007

Chemistry
I NEED HEPL TO BALANCE THIS NH4CL + Na2SO4
August 24, 2007

math
i have trouble finding the answer to this and how to srt. there is a square and i havbe to find the area. HOweever inside the square is a triangle. the base of the triangle is 3 and the leg is 7. no height is given. plz help. Is this a right triangle? Is the base or leg equal ...
July 14, 2007

Probablilty
2 questions Roll a fair 6 sided die 3 itmes. What is the probablity that you obtain at least one 5? Use the binomial. A 28 yr old man pays $208 for a 1 year life insurance policy with coverage of $110,000. If the probability that he will live through the year is .9993, what is...
April 30, 2007

Science
At why type of plate boundary are normal faults found? http://jersey.uoregon.edu/~mstrick/AskGeoMan/geoQuerry19.html
April 1, 2007

Science
Characteristics of a normal fault, reverse fault, and strike slip fault. I think most everything you need is on the following page: http://en.wikipedia.org/wiki/Geologic_fault
April 1, 2007

PLEASE HELP SOLVE RIDDLE
what do you call it when somebody spends 20 years in the 24th row of a theater
March 23, 2007

Science Question 2
The resolution of metal poor red giants in the core of the Andromeda Galaxy by Walter Baade in the 1940s led to the discovery of the stellar what?
March 5, 2007

Science Question 1
If our Sun was Population II, the solar system would contain no ________ planets. Since this is not my area of expertise, I searched Google under the key words "sun population II" to get these possible sources: http://en.wikipedia.org/wiki/Metallicity http://physics....
March 5, 2007

chem
Hydrogen gas and iron (iii) oxide powder react to form liquid water and solid iron powder
February 20, 2007

More Chemistry
I have the answers, I just want to be sure...I'm a little hesitant.. 1. Explain how strong acid solutions conduct an electric current: -Strong acids readily release ions creating electro negativity. 2. Will a strong acid or weak acid conduct electricity better? Why? -A ...
February 15, 2007

Chemistry
Write a net ionic equation that represents the reaction: 1. ionization of HCl3 in water: My answer: HClO3+H20->H3O+ClO3 2. NH3 functioning as an Arrhenius base: Mine: NH3+(OH)->NH4+O The first one is ok but you need to show the + charge on the H3O^+ and the - charge on ...
February 15, 2007

Math
How do you convert a decimal into a fraction? I searched Google under the key words "decimal fraction" to get this source: http://www.webmath.com/dec2fract.html You can think of this to help you: .1 = 1/10 .01 = 1/100 .001 = 1/1000 Thus .235 = 235/1000 However, this ...
January 23, 2007

Science
In an H-R Diagram, the path showing changes in a star's luminosity and surface temperature as a function of time is called its? What is your thinking on these? We are not going to do your work for you. We will be happy to critique your thinking. It's like she typed in ...
January 2, 2007

Science
On the main sequence, what type will have life spans of about ten billion years? I took Earth Science last year so although I do not have them in front of me, I believe the are in the Earth Science Reference Tables (ESRT).
January 2, 2007

Science
While the Sun's evolutionary track moves to the ______ on the H-R diagram, the tracks of very massive stars are almost horizontally to the right?
January 2, 2007

Science
Most of our knowledge of evolutionary tracks comes from stars found in?
January 2, 2007

Science
The thermonuclear process in solar and less massive stars which produces one atom of helium from four of hydrogen is the?
January 2, 2007

Science Question 2
The helium flash converts three helium nuclei to what heavier element? A.beryllium B.boron C.lithium D.carbon E.iron Carbon. Carbon has six protons, obtained from three helium nuclei. http://abyss.uoregon.edu/~js/ast122/lectures/lec16.html A
December 11, 2006

Science Question 1
How many helium atoms must undergo fusion at 100 million K in the helium flash? A.Two B.Three C.Four D.Six E.It varies with density At that temperature, three form carbon, and a fourth with the carbon forms oxygen. This is the main source of carbon and oxygen in the universe. ...
December 11, 2006

calculus
It is estimated that x years from now, the value V(x) of an acre of farmland will be increasing at the rate of: V'(x)= 0.4x^3/sqrroot(0.2x^4+8000 dollars per year. The land is currently worth $500 per acre. A. Find V(x) b. How much will the land be worth in 10 years? You ...
December 4, 2006

Calculus
The rate of growth of the profit (in millions of dollars) from a new technology is approximated by P'(x)=xe^(-x^2) Where x represents time measured in years. The total profit in the thrid year that the new technology is in operation is $10,000. A. Find the total profit ...
December 4, 2006

math
I'm not sure how to multiply (x^2+6x=9) by (x^2-1) I would assume that you would have to distribute everything as normal, including the 9 ( the answer being x^4-x^2+6x^3-6x=9x^2-9)but I am really not sure because I havent done something like this before.
November 25, 2006

Science 5
Rotation of the protostar helps generate the magnetic fields and bipolar flows. True False Since this is not my area of expertise, I searched Google under the key words "protostar rotation magnetic" to get these possible sources: http://www.aas.org/publications/baas/...
November 21, 2006

Science 4
As a protostar evolves from stage 4 to stage 6, it gets hotter but much less bright. True False http://en.wikipedia.org/wiki/Stellar_evolution
November 21, 2006

Science 3
There are a lot more M2V stars than M2Ib stars. True False http://en.wikipedia.org/wiki/Stellar_classification
November 21, 2006

Science 2
For a few of the largest stars, direct measurements of their disks are possible. True False
November 21, 2006

Science 1
At apparent magnitude -3, Jupiter is 100X brighter than second magnitude Polaris. True False Read. http://en.wikipedia.org/wiki/Apparent_magnitude hint: - signs mean brighter but the rule of times 2 still holds If leaving a rference like I did helps you, pleas leave a thankyou...
November 21, 2006

Math-approximation with fractions:7th grade math
How do i solve a problem such as .................... 5/24,9/35
November 19, 2006

Life Science
_____________ is the study of the relationships between living things and their environments. ecology
November 12, 2006

Math
what is the volume of a can that is 3 inches in radius and inches high? pi*r^2*h where h is the height (which isn't included in the problem).
November 12, 2006

Science 5
What are the characteristics of globular cluster stars? A.no stars as hot as our Sun B.old age and hundreds of thousands to millions of member stars C.no main sequence stars left, with billions of member stars D.a few hundred stars, most still on the main sequence E.hundreds ...
November 7, 2006

Science 4
Most stars probably formed A.alone B.in intergalactic space, then were swept up into the Galaxy C.in clusters in the Galaxy's spiral arms D.from planetary nebulae E.in the galactic Nucleus, then migrated outward later I'd guess roughly C ...but im no scientist. check ...
November 7, 2006

Science 3
Which of these is NOT a source of the shock waves that lead to protostars? A. radiation from the OB stars in emission nebulae B. expanding Herbig-Haro objects C. expanding planetary nebula shells D. violent supernovae explosions E. collisions between galaxies MUMBO JUMBO
November 7, 2006

Science 2
Which of these is NOT typical of a condensing protostar? A.magnetic fields producing polar flows B.dusty disks around their equators C.Herbig-Haro objects projecting a light year out in space D.fusion of helium into carbon in their cores E.more infrared than visible light ...
November 7, 2006

Science 4
M type stars usually have some molecular lines, such as TiO, well in their spectra. True or False TRUE
November 6, 2006

Science 3
If a star were moved 10X farther away, its absolute magnitude would drop five magnitudes. True or False TRUE
November 6, 2006

Science 2
Young open clusters appear blue in color. True or False FALSE
November 6, 2006

Science 1
Shock waves from supernovae disrupt an interstellar cloud and prevent it from forming stars. True or False TRUE
November 6, 2006

english vocab word
Hi Can I please get help in a sentence using the word philistine - It was no surprise that our philistine friend, Ken, decided to stay home and watch football instead of joining us at the symphony concert. While at the debate, his philistine girlfriend polished her nails. http...
November 5, 2006

english vocab word
can you please help me -- I need a sentence using the word - cupidity I know that it means GREED...but i do not have a clear understading of the word and need please a more indepth definition of the word. An intense desire to have something...almost like a "lust." ...
November 5, 2006

Science 4
How long does it take an M-type star to form, compared to the time for a solar-type 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 c
November 2, 2006

Science 3
What is characteristic of a main sequence star? A.It has a mass less than the Sun’s B.It has rapid rotation and a strong stellar wind C.Nuclear fusion in the core varies due to the amount of gravitational contraction that occurs and which heavy elements are produced D.The...
November 2, 2006

Science 2
What is the critical temperature at which hydrogen can fuse into helium in the star’s core? A.5,800 K B.26.000 K C.One million K D.Ten million K E.100 million K Please research your questions at the following links I located for you: http://en.wikipedia.org/wiki/...
November 2, 2006

Science 1
When an H ll region is observed, it signals what stage in stellar formation? A.
November 2, 2006

ENG DESP HELP PLEASE
Are these corret! tahnk you so much review for test! are my answers correct 1. Several people listened, but nobody voluntered??? simple 2. Gina and Sam picked the wildflowers, and we arranged them??? simple 3. Snow fell: winter was now upon us?? compound 4. Mrs Smith may be in...
October 31, 2006

ENG help please julie
I am revieing for a test these ar teh ones I can't figure out? **the choice simple - complex or compund 1. even the air must have smelled different that long ago. 2. if you could travel in time, would you go to the time of the dinosaurs? 3. To scientists, this is clear ...
October 31, 2006

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