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Jason
Questions (777)
By titration it is found that 68.9 mL of 0.122 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the
2 answers
589 views
The flask shown contains 10.0 mL of HCl and a few drops of phenolphthaein indicator. The buret contains 0.270 M NaOH.
What volume
1 answer
646 views
Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid according to
BaO2(s)+ H2SO4(aq)--->
1 answer
1,088 views
3.13g if CuNO3 is dissolved in water to make a 0.270 M solution. What is the volume of the solution?
1 answer
876 views
Calculate the number of moles of solute in 18.33 mL of 0.1115 M K2Cr2O7(aq)
1 answer
543 views
How many grams of solute are present in 205 mL of .340 M KBr?
1 answer
498 views
Determine if the equation y = 2^x represents exponential growth or decay
I thought at first it was growth but now I think it
3 answers
1,523 views
Can you please tell me if these are right?
Classify the solutes in the following equations as a weak electrolyte, a strong
1 answer
3,234 views
Compute the value of the integral using geometry.
integral from -4 to 1 of (2x +8)dx
1 answer
420 views
Referring to the Mean Value Theorem and Rolle's Theorem, how can I tell if f is continuous on the interval [a,b] and
0 answers
402 views
Plese tell me if these are right.
A 15.0-mL sample of NaCl solution has a mass of 15.78g. After the NaCl is evaporated to
3 answers
13,817 views
Will you please tell me if these are right? Write the symbol of the caton or anion that give(s) the following reaction:?
1. Forms
1 answer
560 views
Initially sliding with a speed of 2.3 m/s , a 1.8 kg block collides with a spring and compresses it 0.36 m before coming to
0 answers
580 views
A 4111.0 kg truck is parked on a 14.6° slope. What is the friction force on the truck?
1 answer
510 views
A woman has a mass of 42.9 kg. What is her weight on earth? and what is her weight on the moon, where g=1.17 m/s2
1 answer
1,004 views
When air expands adiabatically (without gaining or losing heat), its pressure and volume are related by the equation where is a
0 answers
527 views
When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV1.4=C
0 answers
606 views
an airplane is flying at 600km/h at an altitude of 2.0km. When the sound of the airplane's engines seems to someone on the
1 answer
543 views
Would you please tell me if these are right?
A sample of helium has a volume of 325 ml and a pressure of 655 mm hg. What will be
2 answers
1,540 views
Please tell me if these are right.
How many grams are needed to obtain 1.5 moles of magnesium oxide? I got 60grams is this right?
3 answers
1,254 views
In the answer area below, write the conjunction in the following sentence.
Sentence: Give it to the boy or his mother. This
0 answers
489 views
Can you tell me if these are right please?
When 2.50g of copper reacts with oxygen the copper oxide product has a mass of 2.81g.
1 answer
3,015 views
In the answer area below, write the 2 adverbs in this sentence and explain how each adverb is used.
Example: Eventually, she
1 answer
549 views
List the nouns in the following sentence. Next to each noun - label whether it is concrete or abstract by writing a "C" or an
1 answer
600 views
A car can decelerate at -3.40 m/s2 without skidding when coming to rest on a level road. What would be the magnitude of its
2 answers
5,923 views
Suppose that you are standing on a train accelerating at 0.33g. What minimum coefficient of static friction must exist between
0 answers
671 views
Suppose that you are standing on a train accelerating at 0.33g. What minimum coefficient of static friction must exist between
2 answers
832 views
A cheetah is hunting. Its prey runs for 3.21 s at a constant velocity of +8.36 m/s. Starting from rest, what constant
1 answer
550 views
A skier is gliding along at 6.93 m/s on horizontal, frictionless snow. He suddenly starts down a 17.2° incline. His speed at
2 answers
432 views
An Arrow directed at a stationary target is shot at an angle of E25N. The arrow hits the intended target at the same height from
2 answers
656 views
my friend asked me how to do this probelm and i could not figure it out for the live of me. its simple im pretty sure.
(6-5i)/(6+
1 answer
404 views
A 0.25g sample of a pretzel is burned. The heat it gives of is used to heat 50.g of water from 18 to 42 degrees C. what is the
2 answers
7,561 views
175g of water was heated fro 15 to 88 degrees C. how many kilocalories were absorbed by the water?
I got 94.5 kcal. Is this
3 answers
10,619 views
Eva has two containers labeled A and B. The diameter of container A is 8 inches and the diameter of container B is 12 inches. If
4 answers
1,323 views
In a reaction in which A + B yields AB, the reaction is referred to as a _________.
A. decomposition reaction B.
1 answer
753 views
In a reaction in which A + B yields AB, the reaction is referred to as a _________.
A. decomposition reaction B.
1 answer
1,048 views
Why has China begun an economic shift towards a free enterprise system?
1 answer
417 views
Where might you take someone from China or Cuba to show them the differences between the economy in the US and their country?
4 answers
369 views
Two or more combined substances that do not react form a _________.
solution mixture substance compound
1 answer
530 views
What types of elements are involved in metallic bonding?
A. noble gases B. metals and non-metals C. non-metals only D. metals
2 answers
790 views
Acids and bases react with one another to form compounds called ______?
A. salts B. ions C. mixtures D. salts, ions, and mixtures
1 answer
627 views
Write a polynomial function with integral coefficients having the given roots.
1.) 0, -1/2, 6 2.) +or- 5i
0 answers
517 views
suppose that the area of a square is six times its perimeter. find the length of a side of the square
1 answer
752 views
What are the four basic levels of ecological study, and what is the focus of inquiry at each of these levels?
I don't know what
2 answers
680 views
What are the four basic levels of ecological study, and what is the focus of inquiry at each of these levels?
I don't know what
0 answers
549 views
What are the four basic levels of ecological study, and what is the focus of inquiry at each of these levels?
I don't know what
1 answer
568 views
Show that the transformation T:R^2->R^2 given T(x1,x2)=(3x1-5x2,x1+2x2)
is linear by verifying that satisfies the definition of
0 answers
634 views
Show that the transformation T:R^2->R^2 given T(x1,x2)=(3x1-5x2,x1+2x2)
is linear by verifying that satisfies the definition of
0 answers
776 views
For what real number k does 3x^2 � k factor as
3(x � 2)(x + 2)? Can someone please help with this question? I can not understand
1 answer
528 views
1. Consider the following.
f(x)=8x-10 g(x)=x^2-4x+10 (a) Find the points of intersection of the graphs. ANSWER:(2,6) are the
2 answers
549 views
I am in a beginners class in computer programming and we have been designing our programs in pseudocode format and this is a
1 answer
596 views
I am in a beginners class in computer programming and we have been designing our programs in pseudocode format and this is a
0 answers
579 views
I am in a beginners class in computer programming and we have been designing our programs in pseudocode format and this is a
0 answers
802 views
Evaluate the indefinite integral. (Use theta for Į.)
�ç(8ƒÆ + cos(7ƒÆ))dƒÆ Ans: blank + C C is constant. How do I
0 answers
567 views
Find the general antiderivative of f (x) and check your answer by differentiating.
f(x) = x^5 + 9 Need Help.
1 answer
755 views
Use the following table of values to estimate the area under the graph of f(x) over [0, 1] by computing the average of R5 and
0 answers
540 views
If f(x) = 4ln(5 x+ 4ln(x)), find f'( x ).
3 answers
560 views
500 acres of land costs 800 dollars and every year there is a three percent increase in price then it gives the end cost was one
3 answers
380 views
A certain number changes from 200 to 900 within three hours find the vaulue of k using the formula n times e raised to k times t
1 answer
483 views
A heat engine has the three step cycle shown above. Starting from point A, 1 L (liter) of ideal gas expands in the isobaric
1 answer
670 views
A heat engine has the three step cycle shown above. Starting from point A, 1 L (liter) of ideal gas expands in the isobaric
0 answers
650 views
A heat engine has the three step cycle shown above. Starting from point A, 1 L (liter) of ideal gas expands in the isobaric
2 answers
1,113 views
Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two
1 answer
594 views
A physics student sits by the open window on a train moving at 25 m/sec towards the east. Her boyfriend is standing on the
2 answers
1,342 views
A 16 kg block slides down a 30 degree frictionless incline where it is stopped by a strong Hook's Law spring at the
bottom. The
0 answers
617 views
Near the surface of the Earth, a startled armadillo leaps vertically upward at time t = 0, at time t = 0.5 s, it is a height
of
0 answers
423 views
A motorist drives along a straight road at a constant speed of 60 m/s. At time t = 0 she passes a parked motorcycle
police
1 answer
627 views
I'm completely lost withhow u solve this quadratic equation using the square root method
6x^2=1
1 answer
442 views
Laura invested her savings in two investment funds. The that she invested in Fund A returned a profit. The amount that she
1 answer
855 views
If you add 2.50 mL of .150 M HCl to 100 mL of a buffer consisting of .100 M CH_3COOH and .200 M CH_3COONa, what will be the
1 answer
684 views
Two flat slides of glass are separated at one edge by a thin wire, as shown below. The top surface of the upper slide and the
8 answers
530 views
Business Law Exam 210
True Or False questions. 1. Both "commom law: contracts and UCC contracts are subject to the plain menaing
4 answers
1,166 views
Two parallel wires which carry currents I1 = 69 A and I2. The top wire is held in position, the bottom wire is prevented from
0 answers
609 views
How much energy will be released when 11.11g of calcium chloride dissolves in 100 mL of water.
deltaHf of Ca 2+ (aq)=-543Kj/mol,
1 answer
576 views
An experiment consists of rolling a die and selecting a marble from a bag. the bag has 7 orange, 3 pink, and 6 grey marbles.
0 answers
562 views
A coin bank contains only nickels,dimes, and quarters. the value of the 19 coins in the bank is $2.00. There are twice as many
0 answers
646 views
A coin bank contains only nickels,dimes, and quarters. the value of the 19 coins in the bank is $2.00. There are twice as many
1 answer
720 views
Does the study in the article below use the experimental method or the correlation method and why? I'm stuck and keep going back
4 answers
461 views
How many atomic orbitals are formed duing a pi bond between p two orbitals?
Does the pi bond count as another orbital? Im
1 answer
588 views
C=z+zse
1 answer
254 views
How many milliliters of a 75% acid solution must be added to 90 ml of a 10% acid solution to make a 25% acid solution?
1 answer
464 views
How many milliliters of a 75% acid solution must be added to 90 ml of a 10% acid solution to make a 25% acid solution?
0 answers
607 views
An iron bolt of mass 70.0 g hangs from a string 31.3 cm long. The top end of the string is fixed. Without touching it, a magnet
4 answers
2,075 views
How many grams of NaCl do you have if you have 2.30 x 10 to the 23rd olecules of salt?
1 answer
360 views
I need help balancing equations.
_C7H60+_02->_C02+_H20 I don't know how to balance it because when i do it just won't work out
1 answer
567 views
How many grams of carbon dioxide are produced if you react 200g of benzaldehyde reacr with 32g of oxygen?
its stoichiometry, i
1 answer
431 views
the Validity of the fallowing statement: "Reconstruction failed to bring economic success to former slaves."
1 answer
408 views
Is the rate 3/4 cup of butter /6eggs equal to the rate 9 cups of butter/73eggs
1 answer
469 views
Find the best buy on cashews (1lb is 16oz), a) 1lb for $6.09
B. 10oz for $4.59 C. 1lb 4oz for $7.09 D. 12oz for $5.09
1 answer
489 views
The Tao Inc. purchased an asset for $170,000 with a salvage value of $8,500 have a useful life of four years. Find the
0 answers
522 views
List two relationships that are true about pairs of sides
or angles or diagonals in a. a parallelogram. b. a rectangle. c. a
1 answer
441 views
a. If you begin with a right triangle with sides a, b, and
c and decrease the right angle so it is an acute angle, how does
1 answer
455 views
4x+10=
1 answer
283 views
What are examples of alternatives to natural resources?
I know of vegetable oil to replace fuel, but what else? Thanks.
1 answer
371 views
A) Suppose that as the economic recovery strengthened consumer expectations of annual inflation increased from 2% to 3.5 % and,
0 answers
371 views
I have a word problem in my homework that confuses me.
How long is 1 billion seconds simplified into years then months then days,
1 answer
1,398 views
hey there can someone please help me answer the question
- Explain the advantages and disadvantages of DNA mutating Thankyou
1 answer
488 views
Go on a big number hunt.Find at least one number greater than 100,000.Findat least one number greater than a 1,000,000.Hint:look
0 answers
318 views
find at least one number greater than100,000?find at least one number greater than 1,000,000
1 answer
183 views
A dog that can swim at 1.0 m/s jumps in a river that is flowing 3.0 m/s at an angle of N60*E. Solve the resultant velocity
0 answers
469 views
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