Thursday
July 31, 2014

Posts by liz


Total # Posts: 1,128

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?

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

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

physical science
is a property of metals luster

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.

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

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

Algebra
?I was wondering if you could tell me

math
there are 3 dwrs

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 illumi...

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 -...

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 -...

Chemistry
thank you!

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

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"

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

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

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

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

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

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

Math
4/5 of 10=

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 rega...

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 rega...

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 regal...

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 ___...

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 ....

spanish
hi thanks can you please send me the chart on direct and indirect pronouns

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

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 ** c...

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

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 l...

Science
How does its mass affect the way an object moves

Chemistry
I NEED HEPL TO BALANCE THIS NH4CL + Na2SO4

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 ...

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...

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

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

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

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?

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....

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

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 str...

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 t...

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 ...

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 ...

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).

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?

Science
Most of our knowledge of evolutionary tracks comes from stars found in?

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

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

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. ...

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 w...

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 fun...

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.

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/...

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

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

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

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...

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

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

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).

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 o...

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 t...

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

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 give...

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

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

Science 2
Young open clusters appear blue in color. True or False FALSE

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

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...

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." ht...

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

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...

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/Stellar_e...

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

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...

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 evi...

english desperate
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 dave picked the wild flowers, and we arranged them???simple 3. Snow fell: winter was now upon us?? compound 4. Mrs Smith may be i...

Julie more 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 dave picked the wild flowers, and we arranged them???simple 3. Snow fell: winter was now upon us?? compound 4. Mrs Smith may be i...

english
are both of these a compound or simple sentences I need to have these as a model for the other one's. 1. Her mother went to trade show, but doreen stayed home. 2. Wang and his brother looked at the problem and spotted the solution. i think: 1. compound because "Her Mo...

english desperate
please help: are these compound or simple sentence the boat nosed up to the dock; our trip was finally over. several people listened, but nobody volunteered. shelia calls it a dragon fly; I call it a darning needle. THESE all seem like compund sentences - I need to know these ...

Biology
Thanks so much! <3 (:

english
can you please help me with two sentences inc these words. cupidity philistine i am trying to learn them for a test in a sentence thanks joes cupidity became obvious, as he had aranged the entire party just so Jane and Fred would meet. Fred,Dont be such a philistine, come skin...

Science
_______ and heat caused by overlying rocks and ___________________ elements produce magma. pressure for first word magma large

Science Question 2
Having nothing to do with trigonometry, what type of parallaxes use the width of absorption lines to estimate the star's luminosity and size and distance? A.bolometric B.photometric C.spectroscopic D.holographic E.video metric You can find the answer here: http://www.astro...

Science Question 1
The entire spectral classification of our Sun is what? A.M5V B.G2lB C.K9lll D.Not Given D. (not given) The sun is a G2V star.

Science Question 4
Which type of binary can have their sizes measured directly by photometry? A.Virtual B.Visual C.Eclipsing D.Spectroscopic E.Astrometric e. i think its definatly d I think Eclipsing binaries. Please see: http://en.wikipedia.org/wiki/Astrometric_binary

Science Question 3
Upon what data do measurements of sizes of eclipsing binaries depend? A.Their orbital periods and separations B.Their masses and luminosities C.Their Doppler shifts and durations of stages of their eclipses D.Their temperatures and speeds E.Their temperatures and masses C. You...

Science Question 2
The entire spectral classification of our Sun is what? A.M5V B.G2lB C.K9lll D.Not Given The sun is a G2 I don't know what LB stands for. please read: http://www.solstation.com/stars/sol.htm

Science Question 1
Having nothing to do with trigonometry, what type of parallaxes use the width of absorption lines to estimate the star's luminosity and size and distance? A.bolometric B.photometric C.spectroscopic D.holographic E.video metric http://en.wikipedia.org/wiki/Astronomical_spec...

Science 4
The Sun's complete spectral type is what? The sun is a G2V type star. The G2 denotes spectral type and the V denotes a dwarf star on the "main sequence" of stellar evolution.

Science 3
Which statement about stellar motion is incorrect? A.In general, the closer a star is, the more its proper motion. B.The radical velocity is measured by the Doppler shift. C.The transverse velocity is measured by the proper motion and distance. D.Like parallax, proper motion i...

Science 2
While Sirius, the Dog Star, is type AO, a start just a step hotter than M0 is a related what? A.M1 B.K9 C.F5 D.AOK E.B9 B. K9 K9 is followed by M0 in the temperature/spectral classification of stars. K's are hotter than M's, and K9 is the coolest of the K's

Science
In general, the narrower the spectral line of a star A.the hotter the star is B.the bigger the star is C.the denser the star is D.the smaller that star is E.the cooler the star is E. the cooler the star is . Lower temperatures result less Doppler broadening of lines in the ste...

Home Economics
Produced from a blend of cheeses and America's most popular cheese Surely the answers to all these questions are in your textbook or in your notes from classes. (You do take notes in class, right?) If all else fails, put your main keywords into the search box at http://www...

Home Economics
foods cooked in a cheese sauce.

Home Economics
Enzyme that causes milk protein to settle out.

Home Economics
Frequent use of cheese-to stimulate the __________.

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