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May 2, 2020
Determine the [OHβ] of a solution that is 0.130 M in CO32β (Kb=1.8Γ10β4).
Determine the pH of a solution that is 0.130 M
8 answers
asked by
trump
6,081 views
The only way for artists to control movement in their works is to position important objects on the left-to-right path along
11 answers
asked by
pbody
5,381 views
Calculate the pH that results when the following solutions are mixed
1. 35 mL of 0.20 M formic acid π»πΆπππ»,
3 answers
asked by
I need your help thanks
5,253 views
A uniform metal rod of length 80cm and mass 3.2kg is supported horizontally by two vertical springs balances C and D.Balance C
6 answers
asked by
james
4,180 views
A 6volt battery of internal resistance 0.5ohm is connected to three resistors of value, 3ohm, 4ohm, and 5ohm. Calculate the
12 answers
asked by
istifanus
3,756 views
Write chemical equations and corresponding equilibrium expressions for each of the two ionization steps of carbonic acid
Write
3 answers
asked by
trump
3,183 views
Mieko bought 2 gallons of paint. She used 1/4 of the paint on her bedroom, 3 quarts on the hallway, and the rest of the paint in
12 answers
asked by
BustDemon
3,170 views
Determine the [OHβ] of a solution that is 0.240 M in HCO3β (Ka1=4.3Γ10β7).
Determine the pH of this solution.
4 answers
asked by
trump
3,026 views
Solve the following inequalities, if it is known that function g is decreasing on its domain.
1. g(3x^2β2x)β₯g(3xβ2), Dg=β
3 answers
asked by
Anonymous
2,957 views
One of the roots of the equation x^2β6x+q=0 is 4.5. Find the other root and the value of the coefficient q.
2 answers
asked by
Anonymous
2,544 views
Which choice correctly describes a characteristic of an electromagnetic wave?
a)An electromagnetic wave moves at the speed of
3 answers
asked by
:)
2,344 views
Calculate the total surface area of the solid cone or vertical height 24cm and base diameter 14cm use the value 22/7 for pier
4 answers
asked by
Taofik
2,296 views
Calculate the concentration of all species in a 0.145 M solution of H2CO3 (Ka1 is 4.3Γ10β7 and Ka2 is 5.6Γ10β11).
Calculate
1 answer
asked by
trump
2,278 views
Solve the following inequalities, if it is known that function f is increasing on its domain.
1. f(x^3β4x)β₯f(3x^2+6x), Df=β
3 answers
asked by
Anonymous
2,213 views
Zip code contains 4 digits. How many zip-codes can be created with digits 0β9 if you can use each digit only once and zip code
3 answers
asked by
random
2,152 views
Which best defines the βstab in the backβ myth?
It is the idea that Jews betrayed Germany by orchestrating its defeat in
3 answers
asked by
Student 5
1,853 views
Which of the quadratic functions has the narrowest graph?
a. y=-x^2 b. y=1/3x^2 c. y=3x^2 d. y=1/5x^2
3 answers
asked by
taylor
1,733 views
A street light is at the top of a 20 foot tall pole. A 6 foot tall woman walks away from the pole with a speed of 7 ft/sec along
1 answer
asked by
Joe
1,561 views
Find the number of the permutations with the letters of the word TRIANGLE.
2 answers
asked by
random
1,502 views
Please help!
1. Evaluate the function for x = 2 and x = 7, when f(x) = -4x + 61 2. Tell whether the sequence is arithmetic. If it
3 answers
asked by
joe mama
1,142 views
How much does it cost to operate a 28-W porch light for 24 h if electric energy costs 8Β’/ kWh .
2 answers
asked by
Mary
1,135 views
there are four individual transformer feeder having connected loads of 250 kva, 300 kva, 350 kva, demand factor of these are
2 answers
asked by
V Roy
1,103 views
Based on the titration results, what is the concentration of the sulfuric acid?
Volume of πΎππ» 36 mL Concentration of
2 answers
asked by
Anonymous
1,087 views
10 teams enter a soccer tournament. In the first round teams paired in 5 pairs to play with each other.
Assume that now in each
0 answers
asked by
it
1,056 views
The first term of an AP is -5 and the fifteenth term is double the third term. Find the eleventh term of the progression.
1 answer
asked by
Jabba
1,034 views
sound waves move through some liquid at a speed of 1500 m/s. If the wavelength is 3 m, what is the frequency of the wave?
a)500
3 answers
asked by
:)
959 views
To create animals that have characters of both species, some people have bred buffalo and cattle together. this is an example of
2 answers
asked by
Mightbe
947 views
What volume of a 15.0% by mass NaOH solution, which has a density of 1.116 g/mL, should be used to make 4.95 L of an NaOH
1 answer
asked by
trump
885 views
Homework: Explain what are translations, reflections, and rotations? Are there specific rules to follow?
1 answer
asked by
Starfire
873 views
Pendulum clocks tend to use quite large masses.Why?
2 answers
asked by
Lee
863 views
Name two ions which cause temporary hardness of water and two ions which cause permanent hardness.
1 answer
asked by
Happy
834 views
Why isn't iron usually recommended in the construction of steam pipes and boilers?
1 answer
asked by
Anonymous
809 views
A ladder of 8 m is leaning against a wall begins to slide. If its upper end slides down the wall at a rate of 0.25 m/sec, at
14 answers
asked by
anonymous
771 views
In his book The Crack-Up, F. Scott Fitzgerald (author of The Great Gatsby) wrote the following description of a junk yard.
Seen
4 answers
asked by
PLEASE HELP ASAP
743 views
When water and kerosene are mixed in the container , which one forms the upper layer?give reasons
4 answers
asked by
Happy
704 views
Which of the following are true about railroad expansion in the late 19th century? Choose all that apply.
A. It led to new
1 answer
asked by
hjik
684 views
Calculate the ratio: [πΆπ»3πΆπππ»] / [πΆπ»3πΆππππ]
That will give a solution with pH of 5.00,
1 answer
asked by
PLEASE HELP :D
682 views
Calculate the pH of the solution resulting from the addition of 75.0 mL of 0.15 M KOH to 35.0 mL of 0.20 M HCN (Ka (HCN) = 4.9
0 answers
asked by
pH! help!
681 views
How are the economies of South America Different.
Please answer me :)
1 answer
asked by
Super Nova
664 views
The cost, C, in dollars of producing n yearbooks is represented by the equation
C =1000+5n Last year it cost $1375 for all the
2 answers
asked by
Emily
612 views
Do now:
A) Completa la oraciΓ³n con las letras que completan la palabra adecuada. 1. Quiero ir al ___________a a ver diferentes
0 answers
asked by
anonymous
611 views
What are dilations and how can we apply them in real life? Give at least 2 examples.
1 answer
asked by
Wanda L.
607 views
One hat and two shirts cost $21. Two hats and one shirt cost $18.
Sam has exactly enough money to buy one hat and one shirt. How
1 answer
asked by
Joshy
594 views
How did the Nile River impact ancient Nubia ?
1 answer
asked by
Anonymous
580 views
Frank has 10 different shirts, 4 different pants, and 3 different pairs of shoes. How many different outfits can he create?
1 answer
asked by
Anonymous
558 views
Amphetamine (C9H13N) is a weak base with a pKb of 4.2.
Part A Calculate the pH of a solution containing an amphetamine
1 answer
asked by
trump
555 views
35.0 mL of a 0.250 M solution of KOH is titrated with 0.150 M HCl. After 35.0 mL of the HCl has been added, the resultant
0 answers
asked by
Chemistry 101
548 views
an electrician cuts a 17 ft piece of wire into two pieces one piece is 11 ft longer than the other how long are the pieces
1 answer
asked by
Kendra
541 views
Find the Surface area and volume of a cone with a height(not slant height) of 12.5cm and a diameter of 7cm.
How do I show work
1 answer
asked by
F. D. R.
535 views
When should commas be used in writing? Comma rules?
1 answer
asked by
jackie
527 views
If a man stands on the floor and weight 90kg and the area between his legs is 0.0368 m sq . What is the pressure exerted on the
1 answer
asked by
Toshni
522 views
a) Banting is believed to reduce weight when done for a minimum of 10 days. A random sample of 5 ladies were weighed before and
0 answers
asked by
Gibbons
481 views
Let g(t) be the Glucose concentration in blood stream of a person at time t.
g(t) = 1/k(R - (R - k*go)e^(-kt/v)) Where go -
2 answers
asked by
Ashley
472 views
Do you think the United States entered the war at the right time? Using specific information you learned about the war, explain
1 answer
asked by
Student 4
445 views
A sample on analysis shows 50% CaO, what will be the % of calcium carbonate in it?
1 answer
asked by
Gbolliscent
428 views
How do you find the slant height of a cone with a height of 12.5 cm and a diameter of 7cm?
2 answers
asked by
F. D. R.
419 views
As in the diagram,let A,B,C,D be the centers of the 4 balls in the bottom layer,and A',B',C',D' be the center of the 4 balls in
2 answers
asked by
Kenny
399 views
If a sample of hexane with benzene had an absorbance of 0.153 at
256 nm in a cuvette with 1.000-cm path length, find the
0 answers
asked by
Chem help.
397 views
A chromate πΆππ4 β2 solution has an absorbance of 1.534 when the cell length is 1.5 cm. If the molar absorptivity of
0 answers
asked by
Claire
396 views
State the reason why a steel sphere resting on a horizontal surface is said to be in neutral equilibrium.
1 answer
asked by
William
382 views
As in the diagram,let A,B,C,D be the centers of the 4 balls in the bottom layer,and A',B',C',D' be the center of the 4 balls in
0 answers
asked by
Kenny
371 views
How would u write "$18 per week plus $2 for each visit to the event" in y=mx+b form?
1 answer
asked by
Anonymous
364 views
The regression line from a plot of absorbance vs. concentration yields: π΄ = 2.31[πΆ] + 0.002. If the absorbance of an
0 answers
asked by
Edco
358 views
2+2i, -2-2i, -2β3+2β3i forms an equilateral triangle
1 answer
asked by
Mohammed
341 views
The equation for a normal calibration curve for the detection of iron(II) is determined experimentally to be π΄ = 12.93
0 answers
asked by
Shiro
332 views
Principle of moments.
1 answer
asked by
William
273 views
(c^2 β a^2 β b^2)^2 β 4a^2b^2.
2 answers
asked by
Bella
264 views
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