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Margaret

Questions (138)

How can one realise the best study technique
1. 1 answer
2. 55 views
How can one improve concentration in class
1. 1 answer
2. 62 views
How to improve your focus in school
1. 1 answer
2. 58 views
Two students ali and john live 40km apart .ali starts from his home at 7:15am and cycles towards john's home at16km\hr.john
1. 1 answer
2. 78 views
One_seventh of the money that was raised in a school harambee was used to renovate a staff house while two_thirds of the
1. 1 answer
2. 62 views
Solve the inequality x-3<2(2x+1)<x+12
1. 1 answer
2. 37 views
A rectangular room measuring 15.4metres by 13.0metres is covered by a number of whole square tiles with the largest possible
1. 3 answers
2. 82 views
Describe the structure and function of the internal parts of a leaf
1. 1 answer
2. 75 views
Describe the role of liver in blood sugar regulation
1. 1 answer
2. 49 views
State the general characteristics of kingdom monera
1. 1 answer
2. 47 views
State two functions of bile juice in digestion of food
1. 1 answer
2. 48 views
Describe how the human stomach is adapted to its function
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2. 50 views
Describe how environmental factors may increase the rate of transpiration in terrestrial plants
1. 1 answer
2. 71 views
Describe the process of blood clotting
1. 1 answer
2. 61 views
Describe the process of carbohydrate digestion in human beings
1. 1 answer
2. 79 views
Relate the structure of the skin to its function
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2. 34 views
Explain how marine fish regulate their osmotic pressure
1. 1 answer
2. 62 views
Explain why plants lack elaborate excretory organs like those found in animals
1. 1 answer
2. 42 views
Which hormones are involved in the salt water balance in human body
1. 1 answer
2. 68 views
Give a reason why glucose does not normally appear in urine even though its filtered in mammalian bowman's capsule
1. 1 answer
2. 87 views
Describe how urine is formed
1. 1 answer
2. 39 views
Describe the process of inhalation and exhalation in mammals
1. 1 answer
2. 62 views
Discuss gaseous exchange in the alveolus
1. 1 answer
2. 69 views
Explain how the guard cells are adapted to perform their function
1. 1 answer
2. 63 views
Name three gaseous exchange in frogs
1. 1 answer
2. 68 views
State and Explain ways the leaves are adapted for gaseous exchange
1. 1 answer
2. 74 views
Write three advantages of breathing through the nose than the mouth
1. 1 answer
2. 52 views
Write three advantages of breathing through the Nose than the mouth
1. 1 answer
2. 58 views
Explain why water logging of the soil may lead to death in plant
1. 1 answer
2. 67 views
State three factors that make alveolus adapted to its function
1. 1 answer
2. 43 views
1)State two differences between glycosis and Krebs cycle2)Compare between respiration and photosynthesis 3)State two situations
1. 1 answer
2. 231 views
Ancient GREECE AND Ancient Rome Venn diagram, different, Similar, and different.
1. 1 answer
2. 130 views
Complete 3 tiers of comparison of Ancient Greece and Ancient Rome; Government, Arts, Economics and Religion?
1. 1 answer
2. 164 views
Using ruler and a pair of compasses only construt triangle ABC such that AB 8cm angle ABC 60° and angle BAC 75°Locate the
1. 5 answers
2. 2,045 views
The dimension of a rectangular pool are 32.5 feet by 15 feet. The depth of the water is 5 ft. Each cubic feet contains 7.48
1. 1 answer
2. 507 views
Solve this problem algebraically, using your knowledge of derivatives. Do not solve by graphing.If 800 feet of fencing is used
1. 2 answers
2. 1,579 views
Hi! I'm supposed to derive an algebraic formula to solve for the acceleration using one of the linear kinematics formulas of an
1. 1 answer
2. 617 views
Identify a common defense mechanism that protects you from an uncomfortable?A.reaction formation B.abstinence C.mature behaviors
1. 53 answers
2. 7,436 views
Some have a hundred some have noneClues given -It is very colourful -You see it every morning
1. 31 answers
2. 766 views
An amount of k20.000 is invested for 5 years in a credit union which pays an annual untreated rate of 4.5 percent. Find
1. 0 answers
2. 507 views
Suzy earned $6.10 per hour in 2008 and $9.15 in 2011. How many times greater was the amount Suzy earned per hour in 2011 then in
1. 1 answer
2. 374 views
A truck can be rented from Company A for $90 a day plus $0.70 per mile. Company B charges $60 a day plus $0.80 per mile to rent
1. 2 answers
2. 3,145 views
Explain why the great white shark can grow to a length of 4.9 m.
1. 1 answer
2. 473 views
the great white shark can grow length of 4.9 m. the mako shark can grow to a length of 40 dm.which shark can grow to the greater
1. 3 answers
2. 1,159 views
Can someone please tell me how to solve and graph this system of trinomial quadratic inequalities?{y is greater than or equal to
1. 0 answers
2. 421 views
Can someone please tell me how to solve and graph this system of trinomial quadratic inequalities?{y is greater than or equal to
1. 1 answer
2. 459 views
I have water pH 7.0 insulation with various other things that do not affect pH, I am trying to add X amount of HCL to lower the
1. 1 answer
2. 475 views
Much research is being conducted on repairing faulty sensory organs through devices such as personal guidance systems and
1. 1 answer
2. 696 views
A researcher strongly believes that physicians tend to show female nurses less attention and respect than they show male nurses.
1. 1 answer
2. 683 views
you need to clean the gutters of your home. the gutters are 24 FT above the ground. for safety, the distance a ladder reaches up
1. 2 answers
2. 1,014 views
Suppose you want to have $5,000 saved at the end of five years. The bank will pay you 2% interest on your money. How much would
1. 0 answers
2. 509 views
How many moles of Aluminium Bromide is fromed from 4.0 moles of Aluminium in equation: 2Al + 3 Br2 = 2 AlBr3?
1. 2 answers
2. 672 views
The Fourier series expansion for the periodic function,f(t) = |sin t|is defined in its fundamental interval. Taking π = 3.142,
1. 1 answer
2. 812 views
The Fourier series expansion for the periodic function,f(t) = |sin t|is defined in its fundamental interval. Taking π = 3.142,
1. 0 answers
2. 925 views
A 2.5 kg block sits on an inclined plane with a 30 degree inclination. A light cord attached to the block passes up over a light
1. 1 answer
2. 1,205 views
10.7L of a gas at 1.75 atm are expanded to 20.0L at a mass constant temperature.what the new gas pressure?
1. 1 answer
2. 566 views
10.7L of a gas at 1.75 atm are expanded to 20.0L at a mass constant temperature.what the new gas pressure?
1. 1 answer
2. 1,464 views
10.7L of a gas at 1.75 atm are expanded to 20.0L at a mass constant temperature.what the new gas pressure?
1. 1 answer
2. 1,321 views
A function of two variables is given by, f(x,y) = e^2x-3y Find the tangent approximation to f(0.989,1.166) near (0,0), giving
1. 2 answers
2. 509 views
I need to change the syle of writing from a chapter in a book. From whatever syle it is written in to one of, gothic romance,
1. 1 answer
2. 428 views
Calculate the return and standard deviation for the following stock, in an economy with five possible states. If a Boom
1. 3 answers
2. 1,261 views
Consider the titration of 100.0 mL of 0.260 M propanoic acid (Ka = 1.310−5) with 0.130 M KOH. Calculate the pH of the
1. 0 answers
2. 866 views
Consider the titration of 41.5 mL of 0.213 M HCl with 0.123 M KOH. Calculate the pH of the resulting solution after the
1. 0 answers
2. 557 views
Calculate the pH of a solution formed by mixing 124.8 mL of 0.481 M KF and 130.7 mL of 0.084 M HClO3.
1. 0 answers
2. 407 views
What volumes of 0.47 M HF and 0.47 M NaF must be mixed to prepare 1.00 L of a solution buffered at pH = 3.50?HF NaF
1. 0 answers
2. 943 views
Calculate the pH after 0.013 mole of gaseous HCl is added to 272.0 mL of each of the following buffered solutions. (Assume that
1. 0 answers
2. 470 views
You make 1.00 L of a buffered solution (pH = 5.10) by mixing propanoic acid and potassium propanoate. You have 1.00 M solutions
1. 0 answers
2. 690 views
How many moles of NaOH must be added to 1.0 L of 2.2 M HF to produce a solution buffered at each pH?(a) pH = pKa (b) pH = 4.24
1. 0 answers
2. 420 views
Consider a solution that contains both C6H5NH2 and C6H5NH3+. Calculate the ratio [C6H5NH2]/[C6H5NH3+] if the solution has the
1. 1 answer
2. 2,070 views
A buffered solution is made by adding 48.6 g C2H5NH3Cl to 1.00 L of a 0.77 M solution of C2H5NH2. Calculate the pH of the final
1. 0 answers
2. 597 views
Calculate the pH after 0.016 mole of NaOH is added to 1.05 L of a solution consisting of 0.138 M HONH2 and 0.127 M HONH3Cl, and
1. 0 answers
2. 602 views
Calculate the pH after 0.14 mole of NaOH is added to 1.07 L of a solution that is 0.54 M HF and 1.15 M NaF, and calculate the pH
1. 0 answers
2. 497 views
Calculate the pH of a solution that is 0.124 M C2H5NH2 and 0.124 M C2H5NH3Cl. (Assume that the solution is at 25°C.)
1. 0 answers
2. 570 views
Calculate the mass of HONH2 required to dissolve in enough water to make 255.5 mL of solution having a pH of 10.02 (Kb =
1. 1 answer
2. 2,438 views
Calculate the mass of HONH2 required to dissolve in enough water to make 255.5 mL of solution having a pH of 10.02 (Kb =
1. 2 answers
2. 1,606 views
Would you expect the pressure of a 12.5 mL syringe of natural gas to be the same as the pressure of 12.5 mL of air? In other
1. 2 answers
2. 688 views
Given the following functions, answer the questions:Temperature (°C) Kw 0 1.1410−15 25 1.0010−14 35 2.0910−14 40.
1. 2 answers
2. 650 views
Determine if the solubility would increase, decrease, or stay the same:1) A saturated solution of sugar water is cooled from
1. 1 answer
2. 729 views
What is the % M/M concentration of 5.00 mL of methanol in 25 g solution of methanol in water? The density of methanol is 0.791
1. 1 answer
2. 472 views
How many grams of magnesium sulfate would you need to make 0.500 L of a 10.0% M/V solution in water? Please show work.
1. 1 answer
2. 497 views
If you want to make 75 mL of a 0.015 M solution of B(OH)3 in water, how many grams of B(OH)3 would you need?
1. 1 answer
2. 341 views
Given the following equilibrium constants are given at 377°C,1/2 N2(g) + 1/2 O2(g) NO(g) K1 = 110−17 1/2 N2(g) + O2(g) NO2(g)
1. 2 answers
2. 635 views
At a particular temperature, 13.7 mol of SO3 is placed into a 3.9-L rigid container, and the SO3 dissociates by the reaction
1. 2 answers
2. 1,401 views
At 25°C, Kp = 2.910−3 for the following reaction.NH4OCONH2(s) 2 NH3(g) + CO2(g) In an experiment carried out at 25°C, a
1. 0 answers
2. 774 views
A sample of gaseous PCl5 was introduced into an evacuated flask so that the pressure of pure PCl5 would be 0.54 atm at 425 K.
1. 1 answer
2. 4,240 views
Determine the theoretical field of aspirin for a student who started the experiment with 2.489 g of salicylic acid. Show your
1. 1 answer
2. 444 views
Two students measured the outside temperature at noon from a thermometer hung in the playground. The two students recorded very
1. 2 answers
2. 883 views
X^3+9x^2-108¡Ý0
1. 1 answer
2. 629 views
2) Tube (b) is also filled with water, A1 is 0.05m2 and A2 is 0.08m2 Two pistons are placed in both ends of the tube and forces,
1. 1 answer
2. 774 views
The right angle uniform slender bar AOB has mass m. Assuming a frely hinged pivot O, determine the magnitude of the normal force
1. 0 answers
2. 969 views
What causes depression?A. Genetic issues B. Biochemical issues C. There is no known cause D. Environmental issues Reset
1. 2 answers
2. 492 views
In black and white photography, a photon energy of about 4.00 x 10 to the negative 19th power I is needed to bring about the
1. 1 answer
2. 2,070 views
How many minutes are required for a radio signal to travel from Earth to a space station on Mars if Mare is 7.83 x 10 to the 7th
1. 1 answer
2. 1,979 views
How much time is required for reflected sunlight to travel from the Moon to Earth if the distance between Earth and the Moon is
1. 2 answers
2. 2,207 views
I need to write a paragraph why i choose medical billing. It has to have different experiences that motivate you to choose that
1. 1 answer
2. 419 views
What is the definiton of marginal proficiency consumer?
1. 0 answers
2. 664 views
A red bead releasd from rest at height H slides down a wire without sticking to a green bead initally at rest. The mass of the
1. 0 answers
2. 672 views
Let U = {9, 10, 11, 12, 13, 14, 15, 16, 17, 18}, A = {10, 12, 14, 16}, B = {13, 17}, and C = {10, 13, 16, 17, 18}. List all the
1. 2 answers
2. 530 views
How man grams of Fe+3 are required to make 1.0L of an aqueous solution of 10 ppm Fe+3: (Assume the densit of water is 1.00g/mL)
1. 1 answer
2. 373 views
An object of mass m is dropped at t=0 from the roof of a building of hdight h. A wind blowing parallel to the face of the
1. 0 answers
2. 1,336 views

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