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I am preparing my self for a biology exam and i am going through past papers. Unfortunately they do not supply us with the
1. 1 answer
2. 578 views
Choose the answer that displays the correct spelling of the plural form of the words in parentheses.Ancient (Roman) used (goose)
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2. 561 views
An aircraft starts from rest and accelerates at 42.5m/s^2 until it takes off at the end of the runway. How long will it take the
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2. 1,268 views
How far will a car travel if it starts from rest and experiences an acceleration of magnitude 3.75m/2^2 forward for 5.65 s?Answe
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2. 474 views
How far will a car travel if it starts from rest and experiences an acceleration of magnitude 3.75m/2^2 forward for 5.65 s?Answe
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2. 441 views
How far will a humanoid robot travel in 3.0 s, accelerating at 1.0cm/s^2(forward) if its initial velocity is 5.0cm/s(forward)ans
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2. 824 views
When the Senior class decided to order T-shirts, they were quoted a price of $7.50 per shirt plus a setup fee. The total cost
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2. 1,899 views
Eden finances a purchase of $611.03 by making monthly payments of $26.17 for 2 1/2 years. What annual interest rate, compounded
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2. 2,258 views
In the following sentence identify the function of the infinitive (phrase).Is it too expensive to travel to Europe?
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2. 820 views
Glucose is transported into a cell through a process of co-transport, where it is moved against its concentration gradient
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2. 531 views
how i s fishing line measured
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2. 361 views
16. Which one of the following sentences includes an error in subject-verb agreement?A. Either June or her children are going to
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2. 782 views
15. Which one of the following is a run-on sentence?A. Jerry told me he likes June, but Hank likes Julie better. B. I would talk
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2. 644 views
Either Mark or his students _______ on the ferry boat.13. If you want to use the present tense, which word would best fill the
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2. 669 views
As it sailed south, Lord Nelson's great ship, Victory, met the Spanish fleet near Trafalgar.12. The simple subject of the
1. 1 answer
2. 702 views
a)Calculate the pH of a solution of 0.75 M HNO3, which is a strong acid.b)Calculate the pH of a 1.0 L aqueous solution made from
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2. 895 views
What is the difference between the two strong acids, nitric and hydrochloric acid, whenthey behave as the oxidised forms in a
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2. 413 views
1.Does a pH of 8.6 describe a solution with a higher or lower hydronium ion concentrationcompared to a neutral solution? Is such
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2. 557 views
Please rephrase the following sentences into a more simple manner.I need to give a presentation and i would like to write this
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2. 674 views
a)Name two cations whose salts are quite soluble in water?b)Name one anion whose salts are soluble in water.?
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2. 1,199 views
For each of the following primary standard acids, write the titration equation andcalculate the volume of 0.100 M NaOH required
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2. 580 views
Calculate the weight (in mg) of borax Na2B4O7.10H20 required to react with 25.0 mL if 0.100 M HCINo. moles HCl consumed =
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2. 3,684 views
15.0 mL of 8.00 M NaOH was diluted with water to 500 mL. Calculate the molarityof the diluted NaOH solution. My calculations:
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2. 430 views
STANDARDISATION OF 0.1 M HClBorax dissolves slowly in water at room temperature. Why do we not use a stirring rod to mix the
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2. 590 views
A 0.0583 mol sample of formaldehyde vapour, CH2O, was placed in a heated 0.359 L vessel and some of it decomposed. The reaction
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2. 895 views
At high temperature, 2.00 mol of CH2O was placed in a 4.00 L container where it decomposed via the equilibrium
1. 1 answer
2. 443 views
Determine the velocity and acceleration as functions of time, t, for s(t) = 45t − 5t^2�, wheres(t) represents the distance as
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2. 541 views
Write the name and chemical formula of an amphoteric ion.
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2. 904 views
Name three sodium salts that produce weak bases in aqueous solution.
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2. 424 views
i have to speak a hindi poem onany one of the- ''life and workings of Dr. B. R. Ambedkar''''vaisakhi'' ''the foundation of
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2. 309 views
For reactions in solution, molar concentrations are usually used in equilibrium constantexpressions (designated by K or Kc). In
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2. 721 views
Hydrogen iodide reacts with itself to give hydrogen and iodine. The equilibrium constant is about2.0 x 10─3 at a particular
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2. 1,845 views
Using rational functions solve7+ 1(numerator) x (denominator) = 1 (numerator) x-2(demominator)
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2. 455 views
If the tilt of the earth’s axis increased to 30 degrees, which of the following statements would be correct?(a) There would
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2. 566 views
for the reaction of 14.69 g of ethyl alcohol with 22.5 g of oxygen. which is the limiting reagent? how much CO2 will be
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2. 578 views
a positive test charge of 3.0uC experiences a force of 0.75 N in an electric field. What is the magnitude of the electric field
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2. 1,115 views
a positive test charge of 3.0uC experiences a force of 0.75 N in an electric field. What is the magnitude of the electric field
1. 0 answers
2. 666 views
Condition Pressure Volume Temperature Commentinitial 1.0 atm 22.4 L 273 K 1 mole of N2 gas fills the tank. final 3.0 atm 22.4 L
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2. 994 views
The mole fraction of oxygen in air is 0.209. Assuming nitrogen is the only other constituent,what are the partial pressures (in
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2. 1,536 views
Calculate the partial pressure of 3.25 moles of oxygen that have been mixed (no reaction)with 1.25 moles of nitrogen in a 25.0 L
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2. 558 views
Mixtures of helium and oxygen are used in scuba diving tanks to help prevent ‘the bends’, acondition caused by nitrogen
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2. 3,976 views
There are 3 pitchers of juice. Each student will be served ^ of the juice in a pitcher. How many students will get juice?l a.
1. 11 answers
2. 542 views
Aunt Dessie unfolded out of the car like a carpenter’s ruler” is an example ofpersonification. symbol. simile. metaphor.
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2. 465 views
There are three particles inside an atom. One of them has zero electriccharge. Which one is it?
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2. 379 views
There are four forces in nature. Name the four forces and rank them fromstrongest to weakest.
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2. 715 views
Clark sees that the wind in the nebraska setting has changed aunt georgina by?A. bending her shoulsers B. rotting her teeth C.
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2. 510 views
this is part of a spanish project and i need to know if i placed the accent marks correctly or forgot to put some of them.
1. 2 answers
2. 699 views
Boyle’s law states that if you squeeze a fixed amount of a gas into asmaller volume, the pressure will increase. Explain why?
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2. 498 views
Hey, I was just struggling with a question that I need to figure out to help me with my next lab, so if any of you guys could
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2. 599 views
Boyle’s law states that if you squeeze a fixed amount of a gas into asmaller volume, the pressure will increase. Explain why?
1. 0 answers
2. 517 views
10. A balloon has a volume of 0.5 L at 20°C. What will the volume be if theballoon is heated to 150°C? Assume constant
1. 1 answer
2. 377 views
3. Atmospheric pressure at the top of Mt. Everest is about 150 mm Hg. Thatis why climbers always bring oxygen tanks. If a
1. 1 answer
2. 703 views
3. Atmospheric pressure at the top of Mt. Everest is about 150 mm Hg. Thatis why climbers always bring oxygen tanks. If a
1. 1 answer
2. 992 views
1. Boyle’s law states that if you squeeze a fixed amount of a gas into asmaller volume, the pressure will increase. Explain
1. 7 answers
2. 1,746 views
What volume (mL) of a 3.23 %w/v saline solution contains 69.1 mg of NaCl?
1. 1 answer
2. 815 views
3. Atmospheric pressure at the top of Mt. Everest is about 150 mm Hg. Thatis why climbers always bring oxygen tanks. If a
1. 1 answer
2. 1,169 views
1. Boyle’s law states that if you squeeze a fixed amount of a gas into asmaller volume, the pressure will increase. Explain
1. 0 answers
2. 452 views
Hydrogen cyanide is used in the production of cyanimid fertilisers. It is produced by thefollowing reaction: 2CH4 + 2NH3 + 3O2
1. 1 answer
2. 1,311 views
what characteristics appear to show consistent development over the 4 million years of hominid evolution?
1. 0 answers
2. 334 views
In a chorus of male frogs of one species, which would be considered by evolutionary biologists to be the fittest?The biggest
1. 1 answer
2. 730 views
In mice, a gene controlling coat colour has 2 alleles; B (black) and b (white). A pure breeding black mouse is crossed to a
1. 2 answers
2. 1,017 views
Calculate the length of the diagonal for the given rectangular prism. Round to the nearest tenthlength 10 cm width 4 cm height
1. 5 answers
2. 1,473 views
Calculate the length of the diagonal for the given rectangular prism. Round to the nearest tenthlength 10 com width 4 height 10
1. 2 answers
2. 1,262 views
Ammonia is composed of hydrogen and nitrogen in a ratio of 9.33 g of nitrogen to 2.00 g of hydrogen. If 2.19 g of nitrogen
1. 1 answer
2. 1,691 views
Calculate the length of the diagonal for the given rectangular prism. It says length hight widthbut in the lesson it says length
1. 2 answers
2. 888 views
Bonnie has a rectangular photographic print that is 5 inches wide and 7 inches long. If she multiplies both the length and width
1. 2 answers
2. 539 views
Which of the sentences below is punctuated correctly?(1 point )I opened the door and my cat ran outside. I opened the door, and
1. 3 answers
2. 613 views
how to find slope of a graph without pointsplease make it as simple as possible
1. 1 answer
2. 1,030 views
How many lateral edges are there in a triangular prism
1. 6 answers
2. 1,164 views
Which of the following helped to increase the populations of northeastern citiesmore diversity successful cotton crops growth of
1. 2 answers
2. 734 views
1. When you hold a piece of chocolate in your hand, why does thechocolate melt? 2. Which is a larger unit of heat: calorie,
1. 3 answers
2. 1,172 views
Using properties of the triple scalar product and triple vector product,prove that (a ^ b) � (c ^ d) = (a � *c)(b *� d) - (a �*
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2. 452 views
Find the percent of decrease.Original rent: $600 New rent: $450
1. 1 answer
2. 579 views
who was commander of the u.s. troops on bataan?
1. 2 answers
2. 353 views
what was necessary for the united states to be able to increase its production of war materials in a short period of time?
1. 4 answers
2. 1,837 views
Would you expect a substance to be a solid, liquid, or gas at absolute zero? Explain your answer.
1. 2 answers
2. 1,345 views
You have $2.75 in dimes and quarters, and you have a total of 17 dimes and quarters. How many of each type of coin do you have?
1. 2 answers
2. 449 views
when did the seat of Japanese Emperors moved from Kyoto to Edo
1. 2 answers
2. 735 views
You and two friends scored all 7 runs for your team in a baseball game. Jeff scored twice as many runs as you, and Mary scored
1. 1 answer
2. 599 views
the sum of the reciprocals of 3 consecutive positive integers is 47 divided by the product of the integers. what is the smallest
1. 2 answers
2. 887 views
Admissions to a concert cost $45. A vendor sells t-shirts for $12 each. What is the maximum number of t-shirts you can buy?
1. 1 answer
2. 429 views
admissions to a concerto cost $45. A vendor sells t-shirts for $12. You have $90. What is the maximum number of t-shirts you can
1. 1 answer
2. 415 views
how much potential energy did the object have before it fell?
1. 1 answer
2. 333 views
a cart was pulled for a distance of 1 kilometer and the amount of work accomplished equal 40.000 joules. with what force was the
1. 2 answers
2. 1,241 views
a cart was pulled for a distance of 1 kilometer and the amount of work accomplished equal 40.000 joules. with what force was the
1. 1 answer
2. 598 views
push a box across a table with a force of 5 newtons and the box moves 0.5 meter. how much work has been accomplished?
1. 4 answers
2. 1,860 views
solve each system by eliminationx+y=10 x-y=2
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2. 681 views
1.y=xt1 2x+y=7 2. x=y-2 3x-y=6 3. y=2xt3 5x-y=-3
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2. 754 views
solve each system by substitution1. 6x-3y=-33 2xty=-1 2. 2x-y=7 3x-2y=10 3. 4x=8y 2x+5y=27
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2. 816 views
Mike jogs east at a rate of 4 mph. The wind is blowing west at 1 mph. What is Mike's velocity?
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2. 468 views
supose you bought eight oranges and one grapefruit for a total of $4.60. later day, you bought six oranges and three grapefruits
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2. 1,592 views
Which of the following sentences is correctly punctuated A. The sea calmed; but no boats, left shore.B. The sea, calmed, but no
1. 1 answer
2. 427 views
1-Patty climbs a tree. While sitting on a branch, she drops a leaf and an acorn at the same time. What would happen?
1. 3 answers
2. 2,746 views
what increased the cost of living after the war?
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2. 692 views
A 3000-kg car bumps into a stationary, 5000-kg truck. Thevelocity of the car before the collision was +4 m/s and -1 m/s after
1. 1 answer
2. 949 views
Why might it be hard for the firefighter to hold the hosesteady when the water gushes out of the hose? Think about the law of
1. 4 answers
2. 1,460 views
how to calculate the heat (kJ) released to thesurroundings when a 23.0 g of HCL if formed, from a CH4 + Cl2=CHCl3+3HCL
1. 2 answers
2. 2,841 views
at what altitide(height above earth's surface) would temperatures be 22 degrees C?
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2. 349 views
Estimate a 15% tip on a taxi ride that costs $23.25.
1. 5 answers
2. 956 views
72 is what percent of 480? Write and solve an equation to solve the problem
1. 45 answers
2. 4,910 views

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