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Questions (160)
20cm cube of 0.1M HCL exactly neutralized 25cm cube of sodium hydroxide solute . what's molar concentration of alkali
1 answer
146 views
What is the quadratic formula of 4,12,36
2 answers
91 views
Why is the invention of agriculture revolutionary?
1 answer
297 views
The perimeter of a rectangular garden is 44 yards. It's length is 5 yards less than double the width. Find the length and the
1 answer
732 views
Why were the members of the Third Estate dissatisfied with their way
of life under the Old Regime?
1 answer
647 views
To get in shape for a marathon, Shelby started running around the block a few times each morning.
2 answers
665 views
A(2,5), B(3,1)
2 answers
443 views
-5g - 6 for g = -2
A 4 B 16 C 10 D -13
2 answers
402 views
A water trough is 8m long and its cross-section is an isosceles triangle which is 60cm wide at the top, and the height is 60cm.
1 answer
1,015 views
A ship sails 50 km on a bearing of 70 degrees. How far North is it from its starting position.
1 answer
1,868 views
How do I work out what the x and y equal in this equation: 4 over x plus 5 over y equals 21
1 answer
370 views
Steve and Sue are married with three dependent children. Their 2015 joint income tax return shows $389,000 of AGI and $60,000 of
1 answer
693 views
5x - 5y = -5 4x + 2y = 20
1 answer
332 views
How much heat must be added to 1-kg of 0 degrees Celsius water to turn it into water at 50 degrees Celsius? If the water had
0 answers
795 views
A rectangle has an area of 36m2 list all possible lengths of sides using while numbers it could have
1 answer
860 views
Complete the data set with one value so the mean of the data is 13 using numbers
10, 14, 8, 16, 12, x. X=18 Which value can you
1 answer
1,244 views
-3 =8x-4y solve for y
2 answers
460 views
A bird leaves his nest and travels 20 miles per hour downward for x hours. On the return trip the bird travels 4 miles per hour
1 answer
1,020 views
What is 1/10 of 300,000?
1 answer
354 views
there are 100,000 narwhals
only 100 of them have horns because they are males the rest are females so they don't have horns how
3 answers
464 views
Bookstore has a website for which 90 percent of their book sales are to out of state customers and not subject to the collection
0 answers
947 views
How do I work this problem?
m=-3, (4,5)
2 answers
369 views
How long will it take to go three tenth of an mile going 80 miles an hour
1 answer
399 views
How many traits are involved in a monohybrid cross? How many alleles are involved?
What prevents the expression of a recessive
0 answers
785 views
The yellow cane Alexandra finds at maries house is a symbol of
1 answer
438 views
The perimeter of a volleyball court is 180 feet, anditswidth is 40 feet Find the length of the volleyball court
1 answer
573 views
A car is driving at an average speed of 100km/hr for 2 hours, then drives an average of 50.0km/hr for one hour. what was the
1 answer
844 views
It takes Jaiden 5 and 3/4 hours to do her homework each week. It takes her 2 and 3/4 hours to complete her science and 1 and 1/2
1 answer
860 views
According to his prelaboratory theoretical yield calculations, a student's experiment should have produced 1.41 g of magnesium
0 answers
616 views
Can somebody please answer my question.
0 answers
385 views
'calculate the mass in amu of 2.879 1023 xenon atoms'
1 answer
478 views
Merchants usually sell small nuts, washers, and bolts by weight (like jelly beans!) rather than by individually counting the
1 answer
952 views
What volume will 823 mL of SO3 gas at 11 degrees celsius and 720 mm Hg occupy when the pressure is raised to 1.55atm and the
1 answer
544 views
A volume of 725 mL of a gas is collected at 105 degrees celcius and 746 torr. The gas sample wights 1.92 grams. What is this
1 answer
560 views
It takes 37.16 mL of 0.510 M HCL to neutralize 25.00 mL of NaOh. What is the concentration of the NaOH?
1 answer
847 views
2.9 in3 of mercury to its volume in milliliters and its mass in kilograms
1 answer
506 views
263 mL ethanol to its mass in grams
1 answer
443 views
Iron has density 7.87 g/cm3. If 52.3 g of iron is added to 74.5 mL of water in a graduated cylinder, to what volume reading will
2 answers
3,482 views
28.09 g of silicon contains 6.02 1023 silicon atoms. What is the mass in grams of 1.06 1025 silicon atoms?
Can you help me
2 answers
1,393 views
28.09 g of silicon contains 6.02 1023 silicon atoms. What is the mass in grams of 1.06 1025 silicon atoms?
1 answer
602 views
What would be the molarity of a solution made by dissolving 126g K3PO4 into 1500 mL of water?
3 answers
673 views
Is this correct?
3.84 mol(2 H2O/7.68)????
1 answer
364 views
Find the mass of water (H2O) needed to react with 150 grams of potassium (K)
2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the
0 answers
857 views
Find the mass of water (H2O) needed to react with 150 grams of potassium (K)
2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the
7 answers
849 views
Find the mass of water (H2O) needed to react with 150 grams of potassium (K)
2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the
2 answers
780 views
find the mass of water(H2O) needed to react with 150 grams of potassium(K)
3 answers
756 views
1/10^-8 in scientific notation
1 answer
394 views
1/10^-8 in scientific notation. I need help please.
1 answer
488 views
1/0.000015 in scientific notation. Please explain how to do this.
2 answers
766 views
1/10e-8 in scientific notation. How do I solve this please.
1 answer
544 views
If 525J of energy are added to a 75.5g piece of iron at 22.2 degrees celcius what is the final temperature?
1 answer
465 views
How much energy is required to raise the temperature of a 34.4g Al bar from 20.0 to 35.5 degrees celcius?
1 answer
459 views
How many atoms of nitrogen are in 3.00g of N2O5?
8 answers
3,166 views
15gr of potassium chloride is diluted in 2 L of sterile water for injection. What is the final percent strength?
1 answer
528 views
Imagine that you are advising President Obama as he develops his address to the nation on ISIS, what specific actions would you
1 answer
782 views
research project APA style, regarding:P POA indicator questions. I want to know if I need to post the questions, and then answer
0 answers
559 views
Mrs. Bates watched David work a puzzle that he had chosen from the ones she put on the table. She listened and commented when
2 answers
1,077 views
Needing help, Please..
Robert needs to fill up a box with packaging material. Use the picture below to calculate the volume of
1 answer
442 views
Robert needs to fill up a box with packaging material. Use the picture below to calculate the volume of the box.
Length (2x+3)
1 answer
460 views
Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will
0 answers
609 views
Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will
1 answer
651 views
John wants to hire an editor to check his thesis paper. The editor charges a flat rate of $50 and $2 per page. Write a
1 answer
530 views
A party planner can spend a maximum of $5000 on food. If the chicken dinner (x) costs $20 and the steak dinner (y) costs $25,
1 answer
544 views
A ruler stands vertically against a wall. It is given a tiny impulse at θ=0∘ such that it starts falling down under the
3 answers
660 views
You deposit $1,000 for 4 years at an interest rate of 2.0%. If the interest is compounded annually, how much money do you have
2 answers
1,140 views
if takes bob 40 mins to type 6 pages how many pages can bob take type in 2.5 hours
1 answer
321 views
11. Which of the following sets of Library of Congress call numbers is in the correct order?
A. E88 G62 L166 1995, E88 G62 L45,
1 answer
386 views
Find the z-scores that bound the middle 55% of the standard normal distribution
____ small value _____ larger value
0 answers
790 views
Find the z-scores that bound the middle 55% of the standard normal distribution
____ small value _____ larger value
1 answer
782 views
Net Ionic Equation for reaction between bromide and silver nitrate
1 answer
528 views
Suppose two passengers end up with a reservation to Los Angeles. Two alternatives are proposed:
a. Toss a coin b. Sell the ticket
0 answers
434 views
Rectangle Dimensions: The length of a rectangle is 7 inches longer than the width. If the perimeter of the rectangle is 62
2 answers
1,878 views
Lumberjacks had 30 acres to clear.they cleared 5 acres a day. How many days did it take to clear the trees from the acre?
1 answer
764 views
What type of analogy is garbage:smelly and antenna:radio?
1 answer
472 views
a 1.00 x 10 W electric motor is used to life a 955 kg object vertically 25.0 m at a constant velocity. How much time does it
1 answer
470 views
25.00 mL of heavy water (D2O where D is a hydrogen with a neutron in its nucleus) at 20 degrees C was pipetted into a 37.234 g
2 answers
2,945 views
a surveyor is trying to determine the change in hight h from the bottom to the top of a hill. If the height of instrument H is
1 answer
656 views
Forcefriction=(Psin37+15*9.8)*.70
So Pcos37 must equal to the force, solve for P. how to get the magnitude of P??how to solve for
1 answer
414 views
A 15 kg box sits on a horizontal force.
the coefficient of static fricition between the box and the surface is 0.70. if a force P
1 answer
1,149 views
solve -6x+5+5=47 x=
1 answer
428 views
add simply or fraction
5 3 4 ------ + -- + --- = 8 20 15
1 answer
427 views
At 265 K, the pressure of 0.0454 mol of an ideal gas is 1.42×105 Pa. What volume does the gas occupy?
Please help!
1 answer
486 views
At 265 K, the pressure of 0.0454 mol of an ideal gas is 1.42×105 Pa. What volume does the gas occupy?
0 answers
482 views
If teacher x gives a pop quiz on Monday and then every five classes, and teacher y gives a pop quiz on Monday and then every six
1 answer
1,168 views
What is the ratio of KC2H3O2 and HC2H3O2 in a buffer with a pH of 5.25? Ka = 1.8 x10-5?
2 answers
721 views
Which of the following quantum numbers describes the shape of an orbital?
A) principle quantum number (n) B) magnetic quantum
2 answers
2,813 views
A river boat company offers a 4th of july trip to an organization with understanding that there will be at least 400 passengers.
2 answers
672 views
Given the following reaction and enthalpy change, calculate the amount of heat for converting 100.4g of liquid water
1 answer
733 views
How much heat is required to warm 250.4 g of water from 22.6 C to 75.8 C given that the specific heat capacity of water is 4.184
3 answers
1,249 views
how to rewrite sentences that have mistakes in capitalizing and punctuating compound sentences
1 answer
576 views
Assuming the required RoR for an Investment is 12% and using an inflation rate of 3%, would you recommend the
1 answer
1,131 views
If you have a circle in a square and r is the radius of the cicle and x is the measurement outside the square what would the
1 answer
516 views
A rectangle has sides of 22 ft and 30 ft
you need to pour concrete 1ft wide and 4 ft deep how many cubic feet of concrete will
1 answer
499 views
I have a sample population of 50. This number represents 60% of people in a particular state recevinh mental health services.
0 answers
558 views
Joe's electric made 17 customer calls last wk and 23 calls this week. How many calls must be made next week in order to maintain
3 answers
6,420 views
A certain kind of animal weighs about 77 pounds at birth and gains 2 pounds per day for the first few weeks. Determine those
1 answer
1,134 views
a point is placed on a two dimensional grid at some distance away from another point. The newly addes point is 95 degrees away
1 answer
448 views
Triangle ABC has vertices A(-3,2) B(4.5) AND C(4,-1) Fin out wether the triangle is isosceles?
2 answers
853 views
describe the processes of transcription and translation and correctly identify the anticodon for the following DNA template
0 answers
447 views
Can anyone help with this question
If Earth's land features made by process of moving water are likely to be found on other
1 answer
520 views
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