CHRIS

This page lists questions and answers that were posted by visitors named CHRIS.

Questions

The following questions were asked by visitors named CHRIS.

The molecular structure around the oxygen in water is _________ I don't know what to put
17 years ago
The molecular structure around all the carbons in ethanol is ________ I don't know what to put
17 years ago
5 WAYS THE PENTAGON HELPS OUR COMMUNITY AND UNITED STATES?
16 years ago
how is word used to create the componenet of a research paper
15 years ago
A JUMPROPE IS MEASURED BY GRAMS OR KILOGRAMS
14 years ago
A DICTIONARY,CUBE AND A GEOBOARD IS MEASURED BY GRAMS OR KILOGRAMS
14 years ago
A ROCK IS DROPPED INTO A DRY WELL. THE TOTAL TIME TO REACH THE BOTTOM NAD FOR THE SOUND TO TRAVEL BACK TO THE TOP IS 6.7 S. WHAT IS THE DEPTH OF THE WELL TO THE NEAREST FOOT.
14 years ago
What coefficients are needed to balance the equation for the complete combustion of methane? Enter the coefficients in the order CH4,O2,CO2, and H2O,respectively. Express your answer as four integers, separated by commas (e.g., 1,2,3,4).
14 years ago
What mass of water is produced from the complete combustion of 2.60×10−3 of methane? Express your answer with the appropriate units.
14 years ago
What mass of oxygen is needed for the complete combustion of 2.60×10−3 of methane? Express your answer with the appropriate units.
14 years ago
for which value of X will the fraction 7/2x-6 be undefined ? and check this IF three times a number decreased by 5, the result is 7. find the number. 3x-5=7 and x=4 is this right?
13 years ago
For which value of x will the fraction 7/2x-6 be undefined? HOW TO DO THIS ?
13 years ago
When a skater brings her arms in when spinning, she increases her ____________________. A) angular speed.B) Both of these.C) Neither of these.D) angular momentum.
13 years ago
If the Earth had two identical moons in one circular orbit, and the moons were as far apart in that orbit as they could be, the center of gravity of the Earth-moons system would beA) at the center of the Earth.B) outside the Earth, but beyond the orbital...
13 years ago
A carnival has a Ferris wheel where the seats are located halfway between the center and outside rim. If you were at the outside rim, your angular speed while riding on this Ferris wheel would be A) more and your tangential speed less.B) less and your tan...
13 years ago
q1)Which entries below should have the highest standard molar entropy? a. SiCl4 (s) b. CCl4(l) c. CCl4 (g) d. SiCl4 (l) q2) For the above, which should have the next highest standard molar entropy?
13 years ago
The standard molar entropy value of N2 (g) is 191.5 J/K-mol, of O2 (g) is 205.0 J/K-mol and of NO2 (g) is 240.0 J/K-mol. From these values we can calculate the Delta S for the reaction N2 (g) + 2 O2 (g) produces 2 NO2 (g) to be a. – 156.5 J/K b. 636.5 J/K...
13 years ago
For a particular reaction delta G is more negative than delta H. This means that a. delta S is zero. b. deltaS is negative c. delta S is positive d. delta S is negative if delta H is positive. e. delta S is negative if delta H is negative. i thought it wa...
13 years ago
Nitrosyl chloride (NOCl) decomposes at high temperature. The equation is 2 NOCl (g) -> 2 NO (g) + Cl2 (g) at 227C Using delta H = 81.2 kJ and delta S = 128 J/K, calculate the value of the equilibrium constant for this reaction. a 1.60 X 10-2 b. 2.1 X 10-7...
13 years ago
Free energies of formation are a. always positive b. always negative c. never zero d. measured at 298K e. more than one response above is correct help thinkin a though
13 years ago
delta G for a reaction can be calculated from 1. delta Gf data 2. delta Hf and delta S data 3. equilibrium constants a. only 1 or 2 or 3 b. 1 & 2 only c. 1 & 3 only d. 2 & 3 only e. 1, 2 & 3 help
13 years ago
Calculate the value of ()Go for the following reaction , given the standard free energies of formation listed below each ion. Ag(SO3)_2^3- -> Ag+ + 2SO32- delta Gf, kJ/mol = -943 +77 -497 a. - 1860 kJ b. – 128 kJ c. + 26 kJ d. - 369 kJ e. + 523 kJ help no...
13 years ago
A reaction will be nonspontaneous under all conditions when a. delta G is negative b. delta H is negative and DS is positive c. delta H is positive and DS is negative d. delta H is positive independent of the value and sign of DS e. delta S is positive in...
13 years ago
The phrase "my eye caught the shadow means" : A. I saw the shadow out of the corner B. My eye went and grabbed hold of a shadow C. The shadow grabbed my eye D. I saw a man standing at my side
13 years ago
Does the phrase "frozen to the spot" means: I couldn't move because of fear?
13 years ago
1.También tengo mi propio auto. 2. Me llamo Mario Verdejo. 3. Soy el mejor chofer de Santiago. 4. Mi nuevo cliente se llama Jaime Talavera y es de los Estados Unidos. 5.Mañana vamos al Valle de Maipo. can some one help me put this in order cant seem to fi...
13 years ago
How do melting points differ for ionic compounds versus those that contain only covalent bonds? Why is this so (explain)?
13 years ago
What must a molecule possess to be able to absorb radiation in the infra-red region?
13 years ago
What is a stretch (symmetric versus asymmetric)? What is a bend? ionterpreting infrared spectra NEED HELP PLEASE!!!!!!!!!!!!!!
13 years ago
NH4OH + H2O =
13 years ago
If a line with x-intercept −3 and y-intercept 21 passes through point P=(8,a) , what is the value of a?
12 years ago
If P=(a,a) is a point on the line y=−2x+27, what is the value of a?
12 years ago
Two candidates A and B are up for election. A is so popular that the number of votes for B is expected to be less than or equal to 10% of A's votes. If the total number of votes for both candidates is 110 , what is the minimum number of votes we could exp...
12 years ago
Consider the line passing through two points P=(1,8) and Q=(−1,3). If the line also passes through point R=(15,a), what is the value of a?
12 years ago
Given that −24<A<39 , let x and y be the maximum and minimum integer values, respectively, of −2A+5. What is x and y?
12 years ago
Let y=ax+b be the equation of the line with x-intercept 2 and y-intercept −12. What are a and b values?
12 years ago
Consider the parabola y=x^2-2px+p+1. If the real number p has the property a<p<b, then the vertex of y is above the line y=−12x+13. What are a and b?
12 years ago
For 2 sets X={1,2,3,4},Y={−15,0,30}, f is a surjective function from X to Y. If f(1)=−15 and f(2)=f(4)=0, what is f(3) ?
12 years ago
If (x−48)−(y+16)i=0, what are the values of x,y?
12 years ago
For two sets X={-1,1,a} and Y={7,16,b} f(x)=x^3+8 is a bijective function from X to Y. What is the value of a and b ?
12 years ago
If the graph of y=(ax-5)/(x+b) does not intersect either of the lines x=7 or y=−3 , what is the value of a and b ?
12 years ago
Suppose that a is an integer such that x^2+2xy−360y^2+ax+38y+361 can be factorized as the product of linear expressions in x and y. What is the value of a ?
12 years ago
The difference between the two roots of the quadratic equation x^2+ax+b=0 is 32 and the larger root is 3 times the smaller root. What is the value of a and b ?
12 years ago
If the vertex of the parabola y=x^2-2ax+2a^2 is on the line y=24x+25 what is the value of a (positive number)
11 years ago
Given a rectangular object with dimensions 2cm by 22cm, we want to increase the length of the smaller dimension and decrease the length of the larger dimension by Xcm each. If the the diagonal has to be kept less than (sqrt360)cm in length, the range of X...
11 years ago
If the quadratic equation (8+i)x^2+(a-i)x+38-2i=0 has real roots, what is the value of the positive real constant a?
11 years ago
Consider the line defined by the parametric equations x=3d-10, y=2d+1. The y-intercept of this line can be expressed as a/b. Find a and b.
11 years ago
z=x(1-i)+24(-2+i) , x is a real number. if z^2 is a negative real number what is x?
11 years ago
If x(x+i)+y(y+i)-14(8+i)=0, find x and y.
11 years ago
Suppose x,y,p and q are real numbers and the inverse element for multiplication of the complex number x+yi is 5-11i. If (5-11i)^2 * (x+yi)^3 = p+qi, the value of p+q can be expressed as a/b. What is the value of a and b?
11 years ago
The line segment connecting two points (-2,7) and (4,-1) can be expressed in parametric equations as x=-a+bt, y=c-dt (0<=t<=1). Find the values a,b,c,d.
11 years ago
An operation produces (A-1)/A from a fraction A=m/n, where m is not equal with n and m is not zero. If the initial value of A is 22/47 and the operation is repeated 2012 times, the final output is a/b. What is a and b?
11 years ago
what is the limit n to infinite of cos1*cos(1/2)*cos(1/4)*cos(1/8)*cos(1/16)*...*cos(1/2^n)
11 years ago
Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.0928 V. How much work is done by the electric force when a sodium ion (charge = +e) moves from the outside to the inside? no idea how to do this can i just...
11 years ago
Heading back to the states but on edge since he survived the tsunami FRAGMENT OR NO
9 years ago
i am a 6 digit number 8 ones, 5 hundreds 2 thousands, 19 ten thousands. What is the answer?
8 years ago
The differential equation dy/dx = (y-2)/(y-1) I.produces a slope field with horizontal tangents at y = 2 II.produces a slope field with vertical tangents at y = -1 III.produces a slope field with columns of parallel segments A. I only B. II only C. I and...
7 years ago
Use the graph of f(t) = 2t + 2 on the interval [-1, 4] to write the function F(x), where f(x) = x∫-1 f(t) dt a. F(x) = x^2 + 3x b. F(x) = x^2 + 2x - 12 (my answer) c. F(x) = x^2 + 2x - 3 d. F(x) = x^2 + 4x - 8
7 years ago

Answers

The following answers were posted by visitors named CHRIS.