Monday
July 25, 2016

Posts by Bryan

Total # Posts: 839

Chemistry (Check)
Completion 1) 2)6.02 X 1023 Chemists relate units of counting, of mass, and of volume to a single quanity called the _______. The number of representative particles in a mole of a substance is _______. mole. 6.02*10^23 to find the mass of a mole of a compound,scientists add ...
February 4, 2007

Chemistry (Check)
True or False The empirical formula of a compound is always the same as the molecular compound. My Answear: True The empirical formula for acetylene is CH. The molecular formula is C2H2. Another example: The empirical formula for glucose is CH2O. The molecular formula is ...
February 4, 2007

Chemistry
Completion To calculate the percent composition of a known compound, start with chemical formula of the compound and calculate the ________ which gives the mass of one mole of the compound. formula mass. molecular mass.
February 4, 2007

Chemistry
How many gas particles occupy a volume of 22.4 L at standard temperature and pressure? One mole of gas particles.
February 3, 2007

Chemistry
What is the molar mass of KI(Potassium iodide)? Here is a site for all your molar mass calculations. http://environmentalchemistry.com/yogi/reference/molar.html
February 2, 2007

Current Event
Where can i find an current event paper related to business? I found one.. on google
February 2, 2007

Chemistry
A rock has a mass of 127 g and displaces 32.1 mL of water. What is the density of the rock? density=mass/volume watch units.
February 1, 2007

Chemistry
is this true or false? 5) Density has units of grams per cubic centimeter. It may have units of g/cc. But the unit used is strictly up to the individual calculating. It may be in kg/cubic meter or any of a number of other conversions.
February 1, 2007

Chemistry
is 2 physical? what's 3? I didn't quite get that right. It should be extensive and intensive properties. It is true that density is a physical property but I don't think that is 2. It is EITHER an intensive physical propery or an extensive physical property. Either...
February 1, 2007

Algebra
After a product was reduced $20, it sold for $380. What precent was reduced? P-20=380 solve for P Percent reduced= (P-380)/P x 100
January 31, 2007

Algebra
When the US Air arena is filled up to 80% capacity, it holds 13,600 people. How many would it hold when completely filled? ratio.. 80%:13600 ppl 100%:17000 ppl multiply 80 by 1.25 to make it 100, then multiply 13600 by 1.25 to get 17000. You can also divide 13,600 by 80% (0.8...
January 31, 2007

Modern World History
Where can i get a trace of events from the Crimean War to the fall of the Romanavs? I searched at Google for timeline crimean war romanovs and these are the results: http://www.google.com/search?q=timeline+crimean+war+Romanovs&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=...
January 31, 2007

History
Can one explain to me what was the outcome of the Greeks revolt against the Ottoman Turks.. and the outcome of when charles X tries to set up an absloute monarchy in France.. Thanks in Advance.... Thank you for using the Jiskha Homework Help Forum. The history of Greece is ...
January 30, 2007

Modern World History
Can some one explain to me the ouctome of this action dealing with ethe uprising in Europe. Action: French citizens' armies with their revolution for liberty and equality. Who fought in the French and Indian War?
January 30, 2007

Chemistry
Income tax for some states is computed by taking 3% of the excess income over $3,000 plus 1% of the first $3,000. How much tax is charged on a income of $12,000? 12,000 1 percent on first 3000 3 percent of (12,000 - 3000) I'm trying to figure the relationship between ...
January 25, 2007

Chemistry
How do I make the following coversions, in standard exponential form? 1)14.8g to micrograms 2)3.72 X 10-3kg to grams 3)66.3 L to cubic centimeters 1 g = 10^6 micrograms = 10^6 ug. 14.8 g x (10^6 ug/1 g) = 14.8 x 10^6 ug = 1.48 x 10^7 ug. You do the others. 1 kg = 1000 g 1000 ...
January 25, 2007

Chemistry
What conversion factor would you use to convert between these pairs of units? a)minutes to hours b)grams to milligrams c) cubic decimeters to milliters. There are 60 minutes in 1 hour. There are 1000 mg in 1 g. There are 1000 cubic centimeters in 1 cubic decimeter AND 1 cc = 1...
January 25, 2007

Chemistry
I Have Two Questions 1)How would you calculate the number of nanometers in 8.1 cm? 2)What is the equivalent of 0.35 lb in grams? You need to learn to do deimensional analysis. It's easy. 0.35 lb to grams We know there are 453.6 g in a lb. We take the given (0.35 lb) and ...
January 25, 2007

Chemistry (Check)
Completion 1)1 2)conversion factor 3)change 4)Dimensional anaylsis 5) Whenever two measurement are equal, or equivalent, a ratio of these two measurements will equal ___1____. A ratio of equivalent measurement is called a ___2___. When a measurement is multiplied by a ...
January 24, 2007

Algebra 2
Income tax for some states is computed by taking 3% of the excess income over $3,000 plus 1% of the first $3,000. How much tax is charged on a income of $2,000?
January 24, 2007

Chemistry (Check)
classify each of these statements as always true, sometimes true, or never true. __ST___11)The unit of a conversion factor must cancel. __AT___12)the conversion factor for changing grams and milligrams is 1g/1000mg ___ST__13)multiple conversions factors can be used to solve ...
January 23, 2007

Chemistry
Problem If 1500 white blood cells are lined up side by side, they would form a row 1.0 inch long. What is the average diameter of a single white blood cell? (1 inch = 2.54cm) Set up a proportion. 1500/2.54 = 1/x x is the length of 1 white blood cell. Seems like a large number ...
January 23, 2007

Help Meaning of a word
What is Global Competition? In a business , one always has competitors: trying to make a better product, cheaper. Global competition means that ones competitors can be anywhere. Take an Florida orchid breeder for an example: His climate gives him an advantage, and he has ...
January 23, 2007

Chemistry
(Help) (Problem) A radio wace travels 186,000 miles per second. How many kilometers will the wave travel in one microsecond? (1 mile= 1.61km) distance= timeinseconds/velocity change the given velocity in miles/hr to m/sec 186kmi/sec *1.6km/mi
January 23, 2007

Modern World History
I have to write an essay to compare and contrast the unification movments of modern day Italy & Germany. Where can i obtain information describing each movement? How were they Similar? how where they different. Here are some appropriate sites: ITALY http://en.wikipedia.org/...
January 22, 2007

Chemistry
What order do i arrange the units so they can be from largest to smallest? m superscript 3, mL, cL, UL, L, dL. kilo hecto deca unit deci centi milli ----------- All of the above are by a factor of 10 from top to bottom (becoming smaller); 1 kilogram = 1000 grams...
January 21, 2007

Chemistry
Where can i find the quanity measured by each of of the seven SI base units and the SI symbol of the unit. Here: http://www.chemie.fu-berlin.de/chemistry/general/si_en.html thanks
January 21, 2007

Modern World History
I have to write an essay on the legacy of the decisions made at the Congress of Vienna. Can you give me some information or links to somewhere that can be helpful to me in my writing. I'm looking for information like 1)what was the Congress? What was it goals. 2)What type ...
January 20, 2007

Chemistry (Help+Check)
Completion 1)Kilogram 2) 3) The mass of one cubic centimeter of water at 4c is one ___1___. Scientists commonly use two equivalent units of temperature, the degree __2___ and the ____3___. You have the first considerably in error. I will be happy to critique your thinking. 1. ...
January 19, 2007

Chemistry (Check)
Classify each of these statements as always true, sometimes true or never true. __NT___11. The SI base unit of mass is the milliliter. __AT___12. A decigram is 100 times smaller than a gram. ___ST__13. The SI unit of volume is derived from the unit of length. __NT___14. There ...
January 18, 2007

Chemistry (Check)
Completion 1)Metric 2)Five 3)Meter 4) 5)Weight The International System of Units (SI) is a revision of the ___1____ system. There are __2____ SI base units. In SI, the base unit of length is the ___3____. The Space taken up by a cube that is 10cm on each edge is one __4___. A ...
January 18, 2007

Chemistry (Check)
Completion 1)Metric 2)Five 3)Meter 4) 5)Weight The International System of Units (SI) is a revision of the ___1____ system. There are __2____ SI base units. In SI, the base unit of length is the ___3____. The Space taken up by a cube that is 10cm on each edge is one __4___. A ...
January 18, 2007

Accounting 1
Completion 1)A Corporation's _________ spells out the rules under which the business is to operate. 2)A _________ is responsible for the affairs of the corporation.
January 18, 2007

Accounting
What represents the financial claim to business assets?
January 18, 2007

Chemistry
How many number of significant figures are there in measurement 6.80? I think 2 In measurement 43.52 cm what is digit is the most uncertain? thanks
January 17, 2007

chemistry
What is one situation in which measurements have an unlimited number of significant figures? When we define a number; i.e., 2.5400000000 cm = 1.00000000 inch. OR 12.00000 inches = 1.000000 foot.
January 17, 2007

Chemistry (Check)
Is the following sentence true or false? An answear is as precise as the most precise measurement from which it was calculated. My Answear: True Round the following measurements as indicated 1)Round 65.145 meters to 4SF (69.145) 2)Round 100.1 to 1SF (100.2) No. An answer is as...
January 17, 2007

Chemistry
answear in standard exponential form with correct number of significant figures 0.57 cm X 0.86 cm X 17.1 cm= what don't you understand? Please be specific. You may have two significant figures in the answer.
January 15, 2007

Chemistry (Check)
Completion Percent error is calculated by dividing the ___1____ of the error by the accepted value and then multiplying by ____2___. 1)ablsoute vale 2)100% right on both. thanks when 2.0 g of NaOH were dissolved in 53.0 g water in a calorimeter at 24C, the temperature of the ...
January 15, 2007

chem (Check)
The Question: Why must a calculated answear generally be rounded? My Answear: A calulated answear cannot be more precise than the least precise measurement from which it was calculated. I think your answer is ok but I think you are leaving out information that should be ...
January 15, 2007

Chemistry (Check)
Completion. struggling with this....I got 1) 2)Precision 3)experimental value 4) 5) The ___1___ of a measurement describes how close the measurement comes to the true value. The ____2___ of a measurement depends on its reproducibilty. An ___3___ is a value measured in the lab...
January 14, 2007

Chemistry (Check)
Classify each of these statements as always true, sometimes true, or never true 11)sometimes true 12)Never True 11)Scientific notation is used to express large numbers in convenlent form. 12)Siginificant figures include all the digits that can be known accurately plus a last ...
January 13, 2007

Chem (Check)
The accepted value of a length measurement is 200cm, and the experimental value is 198cm. Circle the letter of the value that shows the precent error of this measuerment. a)2% b)-2% c)1% d)-1% is it b)-2% No. What is 2/200 * 100? Percent error = deviation/GAAT * 100 gAAT ...
January 12, 2007

chemistry
would this be true, false, or sometimes tru 1)An answear to calculations done with scientific measurements cannot be more precise than the least precise measurement. Calculators cannot improve precision, nor accuracy. Precision is in the measurements. so it's true?
January 12, 2007

Chemistry (check)
12) Relative error is also called _______ I got accepted value decimal error? Relative error multiplied by 100 is called percent error. Errors are classified as relative or absolute.
January 12, 2007

Chemistry (check)
Circle the letter of the answear in which 503,000,000 is written correctly in scientific notation.(superscript -7, superscript 6,and superscript 8 1)5.03 x 10-7 2)503 x 106 3)5.03 x 108 4)503 million I got number 3 for the answear. And you get the prize. 5.03 x 108 is correct.
January 12, 2007

Chemistry (Check)
Label each of the three following sentences that describe accuracy with an A. Label each sentence that describes precision with a P. ___P___5. Four of five repetitions of a measurement were named numerically identical, and the fifth varied from the others in value by less than...
January 11, 2007

Chemistry
Is the following sentence true or false? To decide wheather a measurement has good precision or poor precision, the measurement must be made more than once. thanks in advance True. I hate T/F statements that have "must be". Life is full of exceptions to always, and ...
January 11, 2007

Chemistry
How you do this? can you do the first one, i'll try the second one if you can explain Perform the following operations and give the answear in standard exponential form with the correct number of significant figures 1) 37.2mL + 18.0mL + 380mL= 2) 0.57cm x 0.86cm x 17.1cm= ...
January 11, 2007

Chemistry
Give the number of significant figures in the measurement (superscript -3 for #1, and superscript 3 for #2) 1)3.85 X 10-3 2)17.30 cm3 3)0.0037 mm 1. 3 significant figures. 2. 4 s.f. 3. 2 s.f. Here is a good site to review. http://members.aol.com/profchm/sig_fig.html
January 11, 2007

Chemistry
what term macthes this description? what about the weakest attractions that exist between molecule answered below last one A covalent bond formed between two different atoms in which the bonding electrons are shared unequally a polar covalent bond. thanks..
January 10, 2007

T.V Prod
Anyone know where i can find a short story(treatment). Like a one page movie story about anything Are you looking for a short story? If so -- this is one of my favorites, "The Most Dangerous Game," by Richard Connell. http://www.classicreader.com/read.php/sid.6/...
January 10, 2007

Chemistry
what term matches this description? two or more valid electron dot formulas that can be written for the same molecule. what is resonance? thanks.. what about the weakest attractions that exist between molecule. i had resonance for that induced dipole-induced dipole. Also known...
January 10, 2007

Chemistry
what particles are free to drift in metals? cations, electrons, neutrons, or protons? and what is the SI unit of mass? is it kilogram kg is correct for the SI unit of mass. Electrons conduct electricity; therefore, the electrons must be free to move in metals.
January 9, 2007

Chemistry
how many electrons does nitrogen gain in order to achieve a noble-gas electron configuration? is it 4? Nope, it's 3. Looking across period 2, you can see that Nitrogen has 5 valence electrons. It wants 8. 8-5=3. Thanxs. How many significant figures are in the measurement ...
January 9, 2007

Chemistry
What is the strongest of the intermolecular forces http://wine1.sb.fsu.edu/chm1045/notes/Forces/intermol/Forces02.htm The strongest is electrostatic forces between ions. But I don't call electrostatic forces between ions "intermolecular forces." They are ionic or...
January 9, 2007

Chemistry
what symbols are used to represent the charges on atoms in a polar covlaent bond? the polarity of the bond? I am a little confused by the question. I would answer that the polar covalent bond is represented with small delta + and small delta -; however, that leaves no answer ...
January 8, 2007

Modern World History
where can i find a glossry of key people on here? Key people like Pericles, Plato, Socrates, Locke, and Michelangelo. Brief description of what they did and their accomplishmnents? Your best source is an encyclopedia like Wikipedia or Encarta. You can also Google each person.
January 8, 2007

Chemistry
I see the formula Al(OH)3. Why are parentheses used in writing this formula? The formula Na2O means we have two atoms of Na and one atom of O. The formula Al(OH)3 means we have one atom of Al and three atoms of O and three atoms of H. Or, in other words, the subscript ...
January 7, 2007

Chemistry
How do you write the formula for a compound containing a polyatomic ion? Give a for example. I write it as I would any compound. sodium hyrogen carbonate is NaHCO3. sodium acetate is NaC2H3O2.
January 7, 2007

CHEM
what three hydrogen-containing polyatomic anions are essential components of living systems? What does progesterone acetate do in the human body? What is the formula for the acetate ion? Maybe you mean list three anions containg H. OH, HCO3, HPO4 are all essential to cells. ...
January 5, 2007

Chemistry
How many atoms make up the oxlate ion? C2O4= 2C atoms + 4 O atoms.
January 5, 2007

CHEM..
What is the major advantage of the stock system over the old naming system? The stock system is well understood world wide. And, it allows for multivalent atoms. One advantage is that some elements have more than two common valences; therefore, the "ous" and "ic...
January 4, 2007

Chemistry (Check)
Completion is these correct. I can't figure out 5,7,8,9.. 1)equally 2)Non-polar 3)un equally 4)polar bond 5) 6)clipore interactions 7) 8) 9) When atoms are joined by a covalent bond, the bonding electrons are shared ___1____, and the bond is ___2___. When the atoms in a ...
January 3, 2007

Chemistry
The problem How many electrons does the netural atom gain or lose to form each of the following ions? 1)Ca2+ 2)I- The answer is contained in the question. If there is a "+", elecrons are lost. If there is a "-", electrons are gained. The number gained or ...
January 2, 2007

Chemistry (Check)
Completion 1)Transition Metals 2)Stock 3) Many of the ___1____ have more one common ionic charge. These ions are named using either the ___2____ system or the __3____ naming system. 3. IUPAC
January 2, 2007

Chemistry
what is the charge on a typical ion for group 1A? how can i figure out the answear to a question like this.. then group 7A,6A,2A Group 1A has one electron in the outer orbit, it is lost on ionization, and the charge on the metal ion is +1. Group 7a has seven electrons, it ...
January 2, 2007

Job/Career
Where can i find information on the automotive detailing industry? like statistics and reports Here are a few to try: http://www.automotivedetailing.com http://www.mobileworks.com/speakout.html and others: http://www.google.com/search?hl=en&q=auto+detailing+industry =) ...
December 19, 2006

history
what was the impact of the Battle of TraFalgor? The Battle of Trafalgar proved Britain's mighty sea power. http://en.wikipedia.org/wiki/Battle_of_Trafalgar
December 18, 2006

History
Can someone please tell me what was the impact of the Battle of TraFalgor This site should help you with that question. (Broken Link Removed)
December 18, 2006

Chemistry
How do i figure this? State whether the following compound contain polar covalent bonds, non-polar covalent bonds, or ionic bonds, based on their electronegativities. 1)KF_________ Look up the electronegativity values for K and F and make your decision. We shall be happy to ...
December 17, 2006

Chemsitry (Check)
Fill In The Blanks I have Sharing for the first blank and Single for the second. A _______ pair of valence electrons consitutes a _______ covalent bond. Shared/Double. See http://www.chemguide.co.uk/atoms/bonding/doublebonds.html I would have gone with shared and single, also...
December 16, 2006

Chemistry
Fill in the Blanks When atoms share electrons to gain the_____ configuration of a noble gas, the bonds formed are______. Atoms lose and gain electrons to form electron configurations like a noble gas (octet in the outer shell). Atoms share electrons to form the octet in ...
December 15, 2006

Chemistry (Check)
True, False, or Sometimes true 1)A bond in which one atom contributes both bonding electron is called a polyatomic covalent bond.(True) 2)Carbon forms four single covalent bonds with other atoms. (Fales) True, False, or Sometimes true 1)A bond in which one atom contributes ...
December 15, 2006

Writing/ New York Times
What do i search? It gives me no results when i search Losing the Good War on cnn. You are searching for information that is so specific that you have to be prepared for the possibility that none of it may be online. Or some may be, and some may not. In addition to searching ...
December 7, 2006

Algebra 2
Club R has 11 members and club T has 16 members. If a total of 20 people belong to the two clubs, how many people belong to both clubs? (16-x)+(11-x)+x=20 Answer is 7
December 7, 2006

math
What is the difference between any two consecutive odd numbers? 2
December 7, 2006

Algebra
Club R has 11 members and Club T has 16 members. If a toatal of 20 people belong to the two clubs, how many people belong to both clubs?
December 7, 2006

Entrepreneurship
What are five fixed cost? Fixed costs are things a firm pays regardless of how much it produces, sells, or services. Expenses like rent, interest on loans, licence fees, property taxes, certain tools or fixed equipment, insurance, phone hookup, etc.
December 5, 2006

Logic (quick yes or no question)
Why?? what proof is there that states the sun is the center of the solar system?? how do we know this?? The solar system is the group of heavenly bodies that orbits the Sun, which is also known as Sol. Sol orbits the galactic center, roughly 30,000 light years away. The Milky ...
November 30, 2006

Logic (quick yes or no question)
quick yes or no question Is the sun the center of the universe or the earth the center? Neither. The sun is the center of the solar system. Each individual point can be considered the center of the observable universe. The wrote answer of course is no, neither are the center ...
November 30, 2006

Modern World History
Can some one describe the historical importance of the scientific revolution. I have an essay paper due an need help Here are a number of sites that will have the information you need. http://www.clas.ufl.edu/users/rhatch/pages/03-Sci-Rev/SCI-REV-Teaching/03sr-definition-...
November 30, 2006

Chemistry (Check)
True or False? In a structural formula a shared pair of electrons is represented by two dashes. Is this True? Fill in the blank Structural formulas show the arrangement of____________ in molecules. is it electrons? A shared pair is represented by two dots. Structural formulae ...
November 29, 2006

Chemistry
Why are the properties of alloys gnerally superior to their constituent components? In most cases, not all, mixing metals forms eutectics (sometimes called eutectic mixtures). These eutectic mixtures are the combination of the elements that form the lowest melting point of the...
November 29, 2006

Chemistry
what are two general properties of molecular compounds? Generally they are soft and have a low melting point (when compared to ionic compounds). There are exceptions, of course. For exmaple, diamond is not soft.
November 28, 2006

Chemistry (Check)
Fill In the Blank Compounds that are formed when two or more atoms combine to form molecules are called __________. is it diatomic molecule. yes.
November 28, 2006

Entrepreneurship
What Is Competive Advantage?? Competitive advantage is the advantage which helps a firm to compete with other i.e the the relative advantage of a firm in field of competion compared to the other firm What is monopoly?
November 20, 2006

Chemistry
What is the formula for the ions in the compounds BaSO4 and Li2CO3 BaSO4 has barium ions (Ba2+, Sulfate ions SO42-, and Lithium carbonate has lithium ions Li1+, and carbonate ions CO32- Ba ions (might be written as Ba^2+) and sulfate (might be written as SO4^2-). Li^1- and CO3...
November 16, 2006

Chemistry
How do i list the numbers and types of atoms represented by chemical formulas. Example Fe2O3 The subscipts tell you the number of atoms. For example, in Fe2O3 there are two atoms of Fe and three atoms of O. I don't understand the part about types. Please clarify if this ...
November 16, 2006

Chemistry
What is the electron configuration called that has 18 electrons in the outer energy level and all of the orbitals filled? Noble gas configuration
November 16, 2006

Chemistry (Check)
Thanks but can you check another one for me The Valence electrons largely determine the blank of an element and are usually the only electrons used in blank. T have the first one as chemical properties, whats the second blank chemical properties would work for the first blank ...
November 15, 2006

Chemistry (Check)
i have to fill in the blanks In an ionic compound the charges of the Blank and Blank must balance to produce an electrically Blank Substance. Is it Cation, Anion, then Netural for the last blank And what about this one i don't know. Metallic atoms tend to lose valebce ...
November 15, 2006

Chemistry
Can Someone describe the structure of ionic compounds for me please.. Ionic compounds consist of a three dimensional array network of + and - ions. I expect you already know that. As to structure, here is a web site that may help. Repost if you have additional questions but ...
November 15, 2006

Chemistry
What property of nonmetallic elements makes more likely to gain electrons than lose electrons? Non-metals already have outside shells that are more than half filled (escept for group 4 elements) and it is easier to fill the shell by adding 2 or 3 electrons than to lose 5 or 6 ...
November 15, 2006

Chemistry
Describe the formation of an ion from a metal and a nonmetal in terms of the octect rule. Elements classified as metals tend to lose electrons. Except for hydrogen, all other metallic elements lose their outside electrons so that the next inner shell is complete, often with an...
November 14, 2006

Chemistry
What are the characteristics of an ionic bond? Hard, often brittle, high melting point, often soluble in polar solvents such as water. Of course there are exceptions.
November 14, 2006

Algebra
0.06 is the ratio of 6 to what?? What is 6/100 ?
November 14, 2006

Chemistry
How can i tell how many electrons an element has? like Carbon The atomic number is the number of protons in the nucleus AND the number of electrons. Carbon has an atomic number of 6; therefore, it has six electrons. Oxygen is 8; Ne is 10 etc.
November 12, 2006

Chemistry
Name an element that has 5 electrons in the third energy level. How do i determine the third energy level Row three on the periodic table is third energy level If memory serves me will, it begins with sodium. Ok. iS Krypton the electron configuration that ends in 4s2, 4p5 I ...
November 12, 2006

Chemistry
Where Can i find drawing of the electron dot structure of the following atoms. Argon,Calcium,Iodine www.webelements.com will give you the electron configuration. Scroll down the menu on the left side. The electron dot structure is done this way: Write the symbol for the ...
November 11, 2006

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