a certain reaction has the following generaln form

73,436 results, page 80

Chemistry

Acetic acid is a polar molecule and can form hydrogen bonds with water molecules. Therefore, it has high solubility in water. Yet acetic acid is also soluble in benzene (C6H6), a nonpolar solvent that lacks the ability to form hydrogen bonds. A solution of 3.8g of CH3COOH in ...

chem

An automobile burns 65 grams of gasoline over 20 minutes. The gasoline combines with 100 grams of oxygen in this reaction, to form carbon dioxide and 47 grams of water. How much carbon dioxide is formed? do I use the heat capacity equation? How much oxyen is used to produce 47...

Informal Logic

Write two arguments in English,one in the form of modus poens and one in the form of modus tollens. Then write the arguments in symbols using sentence letters and truth-functional connectives. Whay advantage does being able to symbolize our arguments provide? Are there ...

physics (thxs again)

Thank you for the help :) A certain sample carries a current of 4A when the potential difference is 2V and a current of 10A when the potential difference is 4V. This samples is: a) obeys ohm's law b) has a resistance of 0.5 ohms at 1V c) has a resistance of 2.5 ohms at 1V d) ...

Chemistry

Table sugar consists mostly of sucrose, C12H22O11. The standard enthalpy of combustion for sucrose is the standard state delta H for the reaction: C12H22O11 + 12 O 2 ---> 12 CO2 + 11 H2O Calculate this standard state delta H. Give answer in units of kJ to five significant ...

History [check?]

To consolidate his power in Italy, Benito Mussolini did all of the following except __________. a.He extolled the glories of ancient Rome. <-- b.He used militarism to rally his supporters. c.He gave the trade unions greater power. Which of the following did not contribute ...

chemistry

Free radicals are also important in many environmentally significant reactions. For example, photochemical smog, which forms as a result of the action of sunlight on air pollutants, is formed in part by the following two steps. X NO2 NO  O O  O2 O3 UV light  Ozone damages ...

chemistry

One mole of solid NH4Cl (s) isvheated in a closed box to decompose it partially according to the following reaction: NH4Cl (s) <=> NH3 (g) +HCl (g) A) calculate Kp of the above system at the temperature of the experiment if the partial pressure of ammonia at equilibrium ...

Chemistry

Calculate ∆G (in kJ) at 541 K for the following reaction under the given conditions. Use data obtained from the table below and assume that ∆Hfo and So do not vary with temperature. Report your answer to three significant figures in scientific notation (i.e. 1.23E4...

Chem

Classify each situation by the equation that would quantify it. A. A container of ammonia cleaner is stored in the janitor's closet off a lecture hall after being used at night for cleaning. The container has a very small hole in the lid. The next morning the entire lecture ...

CHEMISTRY

Write formulas for the compounds that form from Sr and each of the following polyatomic ion: NO3 −1, SO4 −2, PO4 −3. SR (+3 CHARGE) NO3(-1 CHARGE) SO4(-2 CHARGE) PO4(-3 CHARGE) Re posting this question. hopefully someone can help me answer this now. Please ...

english II

How is the -ing form used in the following sentence? To get in shape for that marathon, Shelby started running around the block a few times each morning. participial phrase as an adjective participial phrase as a noun participle as an adjective participle as a noun gerund ...

Maths

Square root of 12 using prime factor form? Square root of 320 using prime factor form? Square root of 36 using prime factor form?

algebra

a. Suppose a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month’s time. Find the equation of the ...

math

a. Suppose a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month’s time. Find the equation of the ...

algebra

a. Suppose a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month’s time. Find the equation of the ...

math

a. Suppose a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month’s time. Find the equation of the ...

Mat117

a. Suppose a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month’s time. Find the equation of the ...

ALGEBRA

Suppose a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month’s time. Find the equation of the ...

math

a. Suppose a market research company finds that at a price of p = $40, they would sell x = 27 tiles each month. If they lower the price to p = $15, then more people would purchase the tile, and they can expect to sell x = 47 tiles in a month’s time. Find the equation of the ...

algebra

) Suppose a market research company finds that at a price of p = $30, they would sell x = 42 tiles each month. If they lower the price to p = $20, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month’s time. Find the equation of the ...

math question

how do i do a problem like this becuase i got it wrong on my study guide and i want to know how to do it? A number cube is rolled 450 times.The number 3 comes up 67 times. a.What is the theoretical probability of rolling a 3? write your answer as a fraction in simplest form. b...

English

1. Sweetheart, did you apply the cosmetics/lotion on your face? 2. Sweetheart, did you wear the cosmetics/lotion on your face? 3. Sweetheart, did you put the cosmetics/lotion on your face? (What about the expressions? Are all expressions grammatical? Do we have to use the ...

Math

The ratio of men to women in a certain factory is 3:4. There are 210 men. How many workers are there?

7th grade math

when p is subtracted from a certain number, the difference is 50. Find the number.

east nobel

a certain gas has a volume of 565 mL at 25 0C and 715 mm Hg.how many moles of gas are there?

chemistry

A certain element forms an ion with 54 electrons and a charge of +2. Identify the element.

chemistry

a certain solution contains 0.35 mol of HCl in 1200 mL of water. What is the pH of the solution?

7th grade math

Could someone show me how to do this please? 26.2% of a certain number is 81. What is the number?

Physics

At a certain distance from the center of the Earth, a 4.00-kg object has a weight of 1.95 N. Calculate this distance.

Art

How can I describe a ceramics art piece? Is there certain words i should use?

physics

The index of refraction of a certain type of glass is 1.58 what is the speed of light in the glass ?

math

i am a 2 digit decimal , the sum of my digit is 12. if you divide me by a certain number the quotient is 37. who am i?

chemistry

the volume of a certain bacterial cell is 1.44 μm3. what is the volume of 1 x 10 ^5 cells in liters

chemistry

what else could you use the Volhard method in Chemistry for? like is it used in a certain context?

math

a certain recipe for 7/8 cup of granola. How much is needed to make 5/4 of the recipe

Algebra

If a certain number is added to the numerator and denominator of 11/13, the result is 11/12. Find the number.

Algebra

a certain recipe asks for ¼ of granola. how much is needed to make ¾ of a recipe?

maths

if five is subtracted from three times a certain number,the result is 10.what is a number.

Physics

A certain spring stores 35.0 J of potential energy when it is compressed by 9.2 cm. What is the spring constant?

mathematics

8 is added to a certain number and the sum is multiplied by 3 the result is 57.find the number

Results for a coffee cup calorimetry Lab

Hello there, I am a little confused with the results I got after doing this coffee cup calorimetry experiment. If you could please review my formulas to see if I am doing everything properly I would be most appreciative. For a reaction between baking soda and vinegar: 10.06 g ...

Chemistry

A calorimeter contains 30.0 mL of water at 11.0 degrees C. When 1.50 g of X (a substance with a molar mass of 65.0 g/mol) is added, it dissolves via the reaction: X (s)+H2O (l) ---> X (aq) and the temperature of the solution increases to 26.0 degrees C. Calculate the ...

chemistry redox

can someone check my labels for the reaction of a radical with an extra electron, (R(e-)) and an antioxidant, ArOH. R(e-) + ArOh --> RH + ArO(e-) R(e-) is oxidizing agent. ArOH is reducing agent. RH is reduced ArO(e-) is oxidized. Is this correct? And the other possible ...

science(chem)

I synthesized Nylon in my lab for organic chem. I need help figuring out the theoretical yield so I can compare it to my product that I synthesized. I looked up the reaction online on Google by typing in "Synthesis of adipoyl chloride and nylon 6.6." I clicked on the first ...

Algebra

If an even is certain to occur, the probability that the event will occur is ___?

algebra

When the quotient of a certain number and 6 is decreased by 14, the result is 4 find the number.

chemistry

A student determines that the density of a certain metal is 5.2 g/ml. Could the metal be lead? Why?

chemistry

A certain weak base has a Kb of 9.00x10^-7. What concentration of this base will produce a pH of 10.30?

physics

2. The speed of light in a certain plastic is 1.88*10^8 m/s. what is the index of refraction of plastic?

Math

If 19 is subtract from three times a certain number,the difference is 11.what is the number?

Social study

why are certain projects called multi purpose projects

Science

A certain object has a volume of 25.0 mL and a mass of 100 g. What is the density of the object?

math

when a third of a certain number is added to 8,the result is more than 10.what is the number?

Science

How does the release of certain nutrients into a lake harm the lake?

Chemistry

Given the reactant side of the total ionic equation for the neutralization reaction of ammonium hydroxide (NH4OH) with hydrochloric acid (HCl), write the total ionic equation (also known as the complete ionic equation) by entering both the reactant and the product species, ...

Chemistry

On the semi - reactions below is correct to say: Li + + 1℮- => Li. Eº = -3,04V. Au 3+ + 3℮- => Au. Eº = + 1,50V. Pb 2+ + 2℮- => Pb . Eº = - 0,13V. Ag + + 1℮- => Ag. Eº = + 0,80V. a) In the semi reaction Ag, the potential fold if the ...

Chemistry

A middle-aged man has been diagnosed as being at high-risk of developing Coronary Artery Disease. • State the chemical composition of the sterol that is present in high levels in most people who belong to the high-risk group. • Distinguish between the ‘good' and ‘bad' ...

chemistry

A middle-aged man has been diagnosed as being at high-risk of developing Coronary Artery Disease. * State the chemical composition of the sterol that is present in high levels in most people who belong to the high-risk group. * Distinguish between the ‘good' and ‘bad' ...

Chemistry

A middle-aged man has been diagnosed as being at high-risk of developing Coronary Artery Disease. •State the chemical composition of the sterol that is present in high levels in most people who belong to the high-risk group. •Distinguish between the ‘good' and ‘bad' ...

Chem

middle-aged man has been diagnosed as being at high-risk of developing Coronary Artery Disease. •State the chemical composition of the sterol that is present in high levels in most people who belong to the high-risk group. •Distinguish between the ‘good' and ‘bad' ...

Chemistry

a glavanic cell is set up by connecting the following half-cells together: nickle electrode in nickel nitrate solution and a copper electrode in copper nitrate solution. in which half-cell will oxidation occur? in which half-cell will reduction occur? write the half reaction ...

business law

The following question requires you to write an answer in paragraph form. Fidelity Mortgage sells a mortgage on Doug Quicksilver's home to Enterprise Bank. Enterprise erroneously pays the real estate taxes on the home. When Enterprises demands reimbursement, Quicksilver ...

grammar

I need to combine the following sentence pair. First, reduce the second sentence to a participial or n absolute phrase, changing the form of the verb if necessary. Then, insert the phrase into the first sentence. Be sure to place a participial phrase next to the noun or ...

geography

Compare and contrast folded mountains to volcanic mountains. How they are alike? How they are different? i got some of it.. Similarities: Both were probably formed from convergent plate boundaries. Difference: Volcanic Mountains - are mountains that form when molten rock ...

Chemisrty

Carbon tetrachloride (CCl4) and benzene (C6H6) form ideal solutions. Consider an equimolar solution of CCl4 and C6H6 at 25°C. The vapor above this solutionis collected and condensed. Using the following data, determine the composition in mole fraction of the condensed vapor. ...

Biology

Cellular Respiration and Photosynthesis co-exist as paired metabolic processes. Photosynthesis uses light energy to convert carbon dioxide into glucose, a simple sugar, in two steps, the light dependent and light independent reactions. Oxygen is produced as a by product during...

chemistry(check my asnwer)

Why doesn't potassium ion K+ from KMnO4 appear in the following two unbalanced equations: MnO4– + C2O42– Mn2+ + CO2 MnO4– + Fe2+ Mn2+ + Fe3+ ? A. KMnO4 is not added to either reaction. B. The presence of K+ would result in a net positive charge in the products. C. The ...

Chemistry

The equilibrium constant, K, for the following reaction is 1.54×10-2 at 506 K: PCl5(g) PCl3(g) + Cl2(g) An equilibrium mixture of the three gases in a 15.7 L container at 506 K contains 0.207 M PCl5, 5.64×10-2 M PCl3 and 5.64×10-2 M Cl2. What will be the concentrations of ...

chemistry

In Part I the reaction you observed was Mg(OH)2 (s)  Mg2+ (aq) + 2 OH- (aq). Compare the colors you observed in the experiment and answer these questions: A. Which way should the equilibrium shift when HCl is added? How do your results support your answer? Shift to ...

math3333

y+2/y =1/y-5 *Please solve the rational equation I am not certain if the right term is 1/(y-5) or the right side is 1/y -5

chemistry

A certain metal hydroxide, M(OH)2 contains 32.8% oxygen by mass. What is the identity of the metal M? I don't understand what its asking for.

health

Are there certain health care benefits you feel should not be covered by Medicare or Medicaid?

psychology

Is their a certain format for article reviews, possibly in APA format? If so, where can I find an example?

physics

A certain radio wave has a frequency of 2.0*10^6 Hz. What is its wavelength? c=3*10^8 m/s wavelength = 3*10^8 _______ 2*10^6 = 150 m is this done correctly?

English

In the poem Warren Pryor, what does the author pick this certain pattern or rhythm for the poem?

Chemistry

The four quantum numbers for the last electron placed in the orbitals of a certain element are: n=3 l=2 m of l=0 and m of s=-1/2. What is the element?

chemistry

the work done by the system during a certain adiabatic process is 200J. What is the change in U of the system

chemistry

If the density of a certain alcohol is 0.785 g/mL, what volume of the alcohol would have a mass of 75.0g?

MATH

A CERTAIN RECIPE ASKS FOR 2/9 CUP OF GRANOLA. HOW MUCH IS NEEDED TO MAKE 7/3 OF A RECIPE?

MATH

A CERTAIN RECIPE ASKS FOR 2/9 CUP OF GRANOLA. HOW MUCH IS NEEDED TO MAKE 7/3 OF A RECIPE?

Physics

A certain planet is located 3.54 x 10^11 m from its sun. If its orbital period is 4.9 x 10^7 s, find the mass of its sun.

Physics

A certain planet is located 3.54 x 10^11 m from its sun. If its orbital period is 4.9 x 10^7 s, find the mass of its sun.

Chemistry

At a pressure of 103kPa and a temperature of 22 degrees C, 52.9 g of a certain gas has a volume of 31.5 L. what is the identity of this gas?

Physics

A certain planet is located 3.54 x 10^11 m from its sun. If its orbital period is 4.9 x 10^7 s, find the mass of its sun.

Math

The question says When the square of a certain number is diminished by 5 times.. What does diminished by mean?

physics

A certain circuit breaker trips when the rms current is 50.0 A. What is the corresponding peak current?

chemistry

A certain elementary gas is triatomic and has vapour density 48 . The atomic mass of the gas is (a) 48 (b) 96 (c) 32 (d) 16 ..

chemistry

The speed of a certain proton is 4.5×10^5m/s. If the uncertainty in its momentum is to be reduced to 0.1%. Calculate the uncertainty in its position

math

three times a certain number is not greater than 54, find the range of values of the number

chemistry(check my answer)

Which of the following will be affected by the addition of a catalyst to a chemical reaction? a)the value of the reverse rate constant, kr b)the magnitude of the equilibrium constant c)the value of the forward rate d)ΔHo e)the value of the forward rate constant, kf f)&#...

algebra (check plz)

write an equation in slope-intercept form of the line that passes through the given points. a. (-6,1), (3,-7) b. (-2/3,4), (6, -1/3) write an equation in point-slope form of the line that passes through the given poitns. c. (-2,5), (4,-3) d. (1/2,-1), (-2/3,6) ...

Algebra

5. A piece of rope is cut into two pieces. One piece is used to form a circle and the other is used to form a square. Use a length of rope of 20 feet to write a function f representing the area of the circle as a function of the length of one side s of the square.

Chemistry

ok.. im confused: Ammonia and oxygen react in the equation: 4NH³+5O²--> 4NO+6H²O. When 2.4 mol of NH³ are present, the reaction yields ____ mol of O². i have no clue how ot do this! Look at your problem to make sure it is posted correctly. NH3 REACTS with O2; it doesn'...

Stats

3. A mail order magazine service has the exclusive subscription rights to a certain magazine. Subscriptions can be reserved for one, three, four or five years. A study of the subscriber list for other similar magazines reveals that the following information regarding the ...

Calculus

A car passes by a certain point at t = 0 hours heading east at 40 miles/hour. At t = 1 hour, another car passes by the same point heading north at 50 miles/hour. Which of the following functions equals the distance L (in miles) between the two cars as a function of t, for t is...

Calculus 2

find an equation to the curve at the point corresponding to the given value of the parameter. x = tcost y = tsint when t = π i know I am supposed to find dy and dx which is: dy = (product form) t*-sint + 1*cost simplifying = -tsint+cost dx = tcost+sint now, to find the I ...

Social Studies

(Can you please check my answers)one major landform that is found in both united states and canada is A. The Kilauea Volcanos B. The Rocky Mountains (C.) The Great Basin D. Mount Logan 2 Why are the Great Lakes important to both the United States and Canada A. They form the ...

geometry

1. which solid has two bases that are triangles and three lateral surfaces that are rectangles a. triangular pyramid b. rectangular prism c. triangular prism *** d. rectangular pyramid 2. a solid with two parallel and congruent bases cannot be which of the following a. ...

Algebra

1. which solid has two bases that are triangles and three lateral surfaces that are rectangles a. triangular pyramid b. rectangular prism c. triangular prism *** d. rectangular pyramid 2. a solid with two parallel and congruent bases cannot be which of the following a. ...

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