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Questions and answers by M, page 2

Questions (1,432)

(1/6)to the power of 3x = 36 to the power of 2-x
1. 3 answers
2. 285 views
use dimensional analysis to find how many moles of nitrate ions are in 40.0 mL of a 0.75 M aqueous solution of aluminum nitrate
1. 1 answer
2. 404 views
(0.75 moles Al(NO3)3/L Al(NO3)3) x 0.040 L Al(NO3)3 = ??moles Al(NO3)3I am unsure how to find the factor to convert moles
1. 5 answers
2. 570 views
use the intermediate value theorem to determine whether there is a zerof(x) = -3^3 - 6x^2 + 10x + 9 ; [-1,0]
1. 1 answer
2. 376 views
find the bounds on the real zeros?????f(x) = x^5 - 5x^4 +8x + 2
1. 1 answer
2. 328 views
solve in real number systemx^3 + 5x^2 - 12x = 14 =0
1. 1 answer
2. 318 views
given points (0,0) (0,5) vertical asymptote of (-1,1) and horiz (2,1) how do I find the equation??????
1. 1 answer
2. 329 views
use intermediate value theorem to show f(x) has a zerof(x)= x^5 - 4x^4- 7x^2 - 6x; [-0.7, -0.6]
1. 1 answer
2. 268 views
use intermediate value theorem to show f(x) has a zerof(x)= x^5 - 4x^4- 7x^2 - 6x; [-0.7, -0.6]
1. 1 answer
2. 327 views
Keno is a casino game in which the player has a card with the numbers 1 through 80 on it. The player selects a set of k numbers
1. 4 answers
2. 1,377 views
what does the a stand for in Pa^twhat does the r stand for in Pe^rt how are they related?
1. 1 answer
2. 338 views
How would you label sting in "Ouch, that bee sting hurts."
1. 1 answer
2. 416 views
The perimeter of a triangle is 48 centimeters. The longest side is 2 centimeters less than the longest side. Find the lengths of
1. 1 answer
2. 403 views
Write the unstressed syllable beside each wordworship ship pilgrim grim repair re distance tance carrot rot entry try destroy
1. 3 answers
2. 701 views
Calculate the temperature (in ºC) to which silver ore, Ag2O, must be heated to spontaneously decompose the ore to oxygen gas
1. 2 answers
2. 602 views
Explain in writting how to divide .12 by 8. (without using fractions) fifth grade
1. 1 answer
2. 421 views
Calculate the temperature (in ºC) to which silver ore, Ag2O, must be heated to spontaneously decompose the ore to oxygen gas
1. 6 answers
2. 1,176 views
Calculate the E°cell for the following voltaic cell (use the standard electrode potentials given on page 829 of the textbook,
1. 2 answers
2. 569 views
The standard molar enthalpy of fusion and the standard molar enthalpy of vaporization of benzene are 10.9 kJ/mol and 31.0
1. 4 answers
2. 1,160 views
Calculate ΔG at 25 ºC for a reaction in which Ca2+(aq) combines with CO32–(aq) to form a precipitate of CaCO3(s) if the
1. 2 answers
2. 716 views
In Fig. 10-28, wheel A of radius rA is coupled by belt B to wheel C of radius rC. The angular speed of wheel A is increased from
1. 3 answers
2. 1,591 views
find s given that v= 20, a= 10, u= 10 and v squared= u squared =2*a*s
1. 1 answer
2. 241 views
In Fig. 11-35, a solid brass ball of mass m will roll smoothly along a loop-the-loop track when released from rest along the
1. 3 answers
2. 1,925 views
In 1980, over San Francisco Bay, a large yo-yo was released from a crane. Suppose the yo-yo was 153 kg, and it consisted of two
1. 4 answers
2. 2,220 views
For a test of Ho: p = 0.5, the z test statistic equals 1.52. Find the p-value for Ha: p > 0.5.
1. 4 answers
2. 2,032 views
A solid object can be deformed in three fundamental ways. A roof is held up by support columns inside the building. The
1. 2 answers
2. 818 views
The reaction of quicklime (CaO) with sulfur dioxide (SO2) is an important reaction for reducing SO2 emissions from coal-fired
1. 2 answers
2. 985 views
Indicate which of the following elements do not exist in nature in the elemental state (that is, they only exist in the combined
1. 1 answer
2. 446 views
A 500-mL aqueous solution of NaCl was electrolyzed for 15.0 minutes, producing Cl2 gas at the anode. If the pH of the final
1. 2 answers
2. 999 views
Which of the following oxides is the most acidic?A. Al2O3 B. P4O10 C. SO3 D. MgO E. SiO2
1. 3 answers
2. 1,906 views
A 500-mL aqueous solution of NaCl was electrolyzed for 15.0 minutes, producing Cl2 gas at the anode. If the pH of the final
1. 3 answers
2. 470 views
In Fig. 13-25, three particles are fixed in place. The mass of B is greater than the mass of C. Can a fourth particle (particle
1. 3 answers
2. 2,797 views
How many liters of chlorine gas at 1.00 atm and 20ºC will be required to oxidize 167 grams of bromide ions to molecular
1. 3 answers
2. 660 views
How many liters of chlorine gas at 1.00 atm and 20ºC will be required to oxidize 167 grams of bromide ions to molecular
1. 1 answer
2. 442 views
Given: available material= 1200cm^2Box w/ square base & open top Find: Largest possible value of the box Can anyone give me a
1. 1 answer
2. 491 views
You have 27 tuning forks that oscillate at close but different frequencies. What are the (a) maximum and (b) minimum number of
1. 2 answers
2. 1,055 views
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that
1. 2 answers
2. 640 views
An airplane flying at 82km/hr at 30 degrees east of north encounters a 40km/hr wind due west. What is the speed of the plane
1. 2 answers
2. 548 views
Two balls are involved in a completely inelastic collision. The first ball has a mass of 0.25 kg and an initial velocity of 9.27
1. 3 answers
2. 531 views
Two objects A and B are involved in a totally elastic collision The mass of A is 8.8 kg and the mass of B is 0.5 kg. The
1. 5 answers
2. 464 views
A 0.3 kg ball strikes a wall head on and then rebounds straight back. The initial speed was 10.0 m/s and the speed after it
1. 2 answers
2. 1,118 views
Given 1.7 g of hydrobromic acid (48%) calculate the number of mL.(MW HBr: 80.91 g/mol, density: 1.49 g/mL)
1. 1 answer
2. 497 views
A student found that her mixture was 15 percent NH4cl 20 percent NaCl and 75 percent Sio2 Assuming her calculations are correct
1. 4 answers
2. 4,192 views
How many moles of ammonium ions are in 8.794g of ammonium carbonate?I've tried this multiple times but some reason, I can't
1. 1 answer
2. 335 views
Octane has a density of 0.692 at 20degree C . How many grams of O2 are required to burn 17.0gal of C8H18 ?Step-by-step
1. 4 answers
2. 5,228 views
The fizz produced when an Alka-Seltzer® tablet is dissolved in water is due to the reaction between sodium bicarbonate (NaHCO3)
1. 4 answers
2. 3,277 views
What is the net ionic equation of reaction of MgCl2 with NaOH?I got the equation and then balanced it and then omitted the
1. 3 answers
2. 17,826 views
What is Ghost of selection past?
1. 1 answer
2. 293 views
World energy supplies are often measured in the unit of quadrillion British thermal units (10^12 btu), generally called a
1. 3 answers
2. 750 views
World energy supplies are often measured in the unit of quadrillion British thermal units (10^12 btu), generally called a
1. 2 answers
2. 518 views
Is Amborella considered a magnoliid, monocot, or eudicot and why?
1. 1 answer
2. 311 views
How would you differentiate a monophyletic from a polyphyletic and paraphyletic? I know the definition but can someone provide
1. 1 answer
2. 974 views
A mixture of 0.166 moles of C is reacted with 0.117 moles of O2 in a sealed, 10 L vessel at 500 K, producing a mixture of CO and
1. 5 answers
2. 712 views
In a study 42% of adults questioned reported that their health was excellent. A researcher wishes to study the health people
1. 3 answers
2. 1,686 views
An 8-ounce weight stretches a spring 10 cm. How much weight will stretch the spring 15 cm?
1. 4 answers
2. 2,510 views
The distance between two towns on a map varies directly with the actual distance between the towns. Seven and a half inches on
1. 3 answers
2. 1,360 views
Why is energy released in order to react two atoms to form a compound?For instance the reaction between sodium metal and
1. 3 answers
2. 486 views
When you scuba dive, the added pressure due to the water varies directly with your depth. At 20 feet, the added pressure is
1. 1 answer
2. 648 views
In a lightning storm, the number of seconds between the flash and the bang varies directly with the number of miles you are from
1. 3 answers
2. 612 views
Can someone help draw/explain the Lewis Dot Structure for OPBr3. I've tried different things, but none of them seem to work.
1. 3 answers
2. 2,017 views
Part A:A cardinal (Richmondena cardinalis) of mass 4.50×10^−2 kg and a baseball of mass 0.142 kg have the same kinetic
1. 1 answer
2. 496 views
A car is traveling at 10 m/s. By what factor does the car's kinetic energy increase if its speed is doubled to 20 m/s?
1. 1 answer
2. 641 views
A 17kg child slides down a 2.7m -high playground slide. She starts from rest, and her speed at the bottom is 1.8 m/s. What is
1. 1 answer
2. 725 views
Using the five themes of geography, which theme best illustrates each statement: Location, character of place, human-environment
1. 6 answers
2. 1,950 views
I must combine the following sentences in the most effective way. Is my answer correct?1. Walter loved animals. 2. He especially
1. 2 answers
2. 932 views
Question: How can I rewrite this sentence to maintain the 3rd person academic tone? Is my answer correct?1. You have probably
1. 1 answer
2. 495 views
Question: How can I rewrite this sentence to maintain the 3rd person academic tone? Is my answer correct?1. You have probably
1. 1 answer
2. 476 views
I must improve the organization of these four sentences of a paragraph in the most effective way. Is my answer correct?Sentences
1. 2 answers
2. 484 views
I must combine the following sentences in the most effective way. Is my answer correct?Sentences: 1. He didn't cover his vehicle
1. 2 answers
2. 776 views
The first-order rate constant for the decomposition of N2O5, 2N2O5(g) --> 4NO2(g) + O2(g), at 70 degrees C is 6.82 x 10^-3 s^-1.
1. 4 answers
2. 1,400 views
Find the intergral of (1+x)/sqrt(3-x^2)
1. 1 answer
2. 337 views
Find the intergral of (1+x)/sqrt(3-x^2)
1. 1 answer
2. 381 views
What is the function rule for2,30 4,15 6,10 10,6 12,5 15,4 30,2
1. 1 answer
2. 381 views
if 24.0 L of O2 burns completely a sample of carbon disulfide, how many grams of sulfur dioxide will be produced at 15 degrees
1. 2 answers
2. 1,107 views
if 24.0 L of O2 burns completely a sample of carbon disulfide, how many grams of sulfur dioxide will be produced at 15 degrees
1. 2 answers
2. 675 views
How do you solve this: if 24.0 L of O2 burns completely a sample of carbon disulfide, how many grams of sulfur dioxide will be
1. 5 answers
2. 402 views
How do you solve this: if 24.0 L of O2 burns completely a sample of carbon disulfide, how many grams of sulfur dioxide will be
1. 1 answer
2. 384 views
If 24.0 L of O2 burns completely a sample of carbon disulfide, how many moles of sulfur dioxide (SO2) will be produced at 15
1. 2 answers
2. 951 views
If 24.0 L of O2 burns completely a sample of carbon disulfide, how many moles of sulfur dioxide (SO2) will be produced at 15
1. 1 answer
2. 442 views
If 24.0 L of O2 burns completely a sample of carbon disulfide, how many moles of sulfur dioxide (SO2) will be produced at 15
1. 1 answer
2. 460 views
Math estimate quotient 6 1/3 divided by 3 1/7
1. 2 answers
2. 907 views
If your equation of the line for you SAM analysis is y=1x+0.3980, what is the concentration of Mg in ppm in your unknown
1. 1 answer
2. 252 views
If your equation of the line for you SAM analysis is y=1x+0.3436, what is the concentration of MgO in W/w% in your unknown with
1. 1 answer
2. 364 views
1. Which of the following is correct in regard to the use of formal English?A. Formal English is used more frequently in
1. 7 answers
2. 950 views
Graph each liner equation and locate the x and y interceptsy/2-3x/5=1
1. 1 answer
2. 268 views
Graph each liner equation and locate the x and y interceptsy/2-3x/5=1
1. 1 answer
2. 330 views
Find the slope-intercept equation of the line that satisfies the given conditions. Then graph the line.Contains points P=(
1. 2 answers
2. 625 views
Find the standard equation of an ellipse with the given characteristics and sketch the graph.Vertices at (0,-5), and (0,5); Foci
1. 2 answers
2. 978 views
A commuter backs her car out of her garage with an acceleration of 1.6 m/s2. How long does it take her to reach a speed of 2.3
1. 2 answers
2. 584 views
In the early 1900s, Alfred Wegener noticed that some of the Earth's continents looked like they might fit together like a jigsaw
1. 11 answers
2. 2,065 views
Consider 51.5 mL of a solution of weak acid HA (Ka = 1.00 10-6), which has a pH of 4.210. What volume of water must be added to
1. 1 answer
2. 407 views
Richard Simons is selling his house. He has a choice of taking $125,000 today or $135,000 in 6 months. If he takes the money
1. 3 answers
2. 793 views
What volume of each solution contains 0.220mol of NaI?a.) 0.142M NaI b.) 0.902M NaI c.) 1.61M NaI
1. 3 answers
2. 986 views
The length of Joe's rectangular garden is 1 meter less than its width and its area is 120m^2. Find the dimensions of the garden.
1. 4 answers
2. 625 views
A 66.2 kg person sits on the 5.3 kg sled (slope is on an angle, angle not given). It is to be pulled across the snow with a
1. 2 answers
2. 511 views
An electric lawn mower has a resistance of 160 ohms and draws 15A. What is the cost of operating the lawn mower for 30 minutes
1. 1 answer
2. 462 views
what is the angle of rotation about D when the measure of the acute angle between lines m and n is 36 degrees
1. 1 answer
2. 509 views
Find two pairs of numbers with 10 as their least common multiple
1. 4 answers
2. 1,921 views
FACTOR6x^3+2x^2-8x =0 I know the GCF is 2x thus leaving: 2x(3X^2+X-4X)=0 *Stuck after this part*
1. 1 answer
2. 341 views
Is the GCF factor of any number n and 1 is n?
1. 1 answer
2. 383 views

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