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jazz

Questions (82)

Using the balanced reaction given, what mass of O2 is required for the complete reaction of 45.0 g of C2H4?
1. 1 answer
2. 134 views
3/4(3x+6)-1/4(5x-24)
1. 1 answer
2. 227 views
Which issue could cause a plant to have too little water?
1. 16 answers
2. 5,802 views
A company produces fruity drinks that contain a percentage of real fruit juice. Drink A contains 10% real fruit juice and Drink
1. 3 answers
2. 8,260 views
If a green eyes girl whose father is green eyeid marries a brown eye boy then what genotype the nxt generTION has
1. 1 answer
2. 435 views
If a green eyes girl whose father is green eyeid marries a brown eye boy then what genotype the nxt generTION has
1. 0 answers
2. 441 views
Could someone let me know if I answered these questions?1. How do you classify the liquid pair mineral oil -- H2O, miscible or
1. 1 answer
2. 998 views
Hello Dr.Bob,the saturate at 60 degrees Celsius is 85.5g i hope this helps with the problem I posted at 12:49am thanking you in
1. 0 answers
2. 481 views
Help. what is the formula to figure out the total mass of a solution?
1. 1 answer
2. 1,832 views
can someone please tell me what formula's to use for the 2 following chemistry problems.1. Calculate the solubility of potassium
1. 3 answers
2. 3,411 views
A student heated a hydrated salt sample with an initial mass of 4.8702 g, After the first heating, the mass had decreased to
1. 4 answers
2. 5,879 views
I need help to evaluate if I completed my experiment calculation.determination of water in a hydrate. 1. Mass of crucible, and
1. 1 answer
2. 575 views
Hello DR. BOB,the correct value in the problem posted at 1:17pm regarding Student A and Student B accuracy and random error is
1. 0 answers
2. 493 views
I need help figuring out the calculations of my experiment. I'm sure I did something wrong cause I can not figure how to
1. 1 answer
2. 598 views
I need someone to check my answers to make sure that I have the correct answers. (3 Part Question)Two students each measure the
1. 2 answers
2. 6,437 views
I am not good with math problems. I need help with these two problems. I'm not sure what equations to use. please help.A student
1. 2 answers
2. 821 views
I need someone to check to make sure that I balanced my equations correctly. I have to add a (g) or (s) to indicate gases and
1. 1 answer
2. 622 views
I am having a hard time understanding how to calculate pH. my textbook states that that pH =-log[H^+].I have two questions that
1. 1 answer
2. 663 views
I have a couple of unfinished experiments i need help with as well. If you can help me. Thanking you in advance.If I tested the
1. 1 answer
2. 380 views
Hello Dr. BobI have been sick and missed some of my classes and my classmates want to act stupid. So if its not too much trouble
1. 1 answer
2. 1,439 views
I think I balanced these equation right please check and let me know. i am suppose to complete and balance the equations
1. 0 answers
2. 557 views
Can someone may sure that I balanced the following groups of equations correctly.Write an equation to show how acetic acid
1. 1 answer
2. 1,676 views
I want to know if someone could let me know if I have written my balanced equations correct for the following questions.Write a
1. 1 answer
2. 870 views
I am unsure about balancing equation I would like for someone to let me know if I am working this out correctly?I have to write
1. 1 answer
2. 736 views
I have to write a balanced equation for the reaction of a solid lead being added to a solution of silver nitrate. Solid silver
1. 1 answer
2. 1,769 views
I have to write a balanced equation for the decompostion of solid copper (ii) sulfate to form the gaseous sulfur trioxide and
1. 1 answer
2. 620 views
is 3M less or more concentrated than 9M of sulfuric acid? I think that 9M is more concentrated but I wanted to make sure.thanks
1. 1 answer
2. 541 views
Is this true or false Abnormal psychology examines the concept of “differentness.” The spectrum of“differentness” is
1. 2 answers
2. 1,042 views
Is this true or false With regard to life transitions, adolescence appears to be a time of particular stressbecause of the many
1. 1 answer
2. 462 views
Is this true or false Behavioral medicine and health psychology are concerned with reducing the stress ofillness but not
1. 1 answer
2. 633 views
In a random Sample of Canadians30% have Beeburr CD's (B) 35% have Fergie CD's (F) 55% have Motorhead CD's (M) 5% have B and F
1. 0 answers
2. 452 views
the paralle side of trapezium are 20m and 30m and its non-paralle sides are 6m and 8m .find the area of trapezium
1. 5 answers
2. 2,249 views
the us is a leading exporter ofa.oil natural gases b.rice products c.beef and grain. d.cranberries and rasberries
1. 2 answers
2. 456 views
The electron in a hydrogen atom with an energy of -0.544 eV is in a subshell with 18 states.What is the principal quantum
1. 1 answer
2. 1,313 views
An electron drops from the L shell to the K shell and gives off an X-ray with a wavelength of 0.0205 nm.What is the atomic
1. 2 answers
2. 608 views
Mars Rover When the Mars rover was deployed on the surface of Mars in July 1997, radio signals took about 12 min to travel from
1. 3 answers
2. 2,503 views
What is the rms value of the electric field in a sinusoidal electromagnetic wave that has a maximum electric field of 64 V/m?
1. 0 answers
2. 684 views
A 9.2V battery is connected in series with a 33mH inductor, a 190 Ohms resistor, and an open switch.A)What is the current in the
1. 0 answers
2. 634 views
A circuit consists of a 12.0 V battery connected to three resistors 44 ohms, 15 ohms and 120 ohms in series.A)Find the current
1. 1 answer
2. 1,481 views
Find the mass of urea needed to prepare 51.7 g of a solution in water in which the mole fraction of urea is 7.59×10−2. anyone
1. 0 answers
2. 995 views
A uniform electric field of magnitude 2.80×10 ^4 N/C makes an angle of 37 degrees with a plane surface of area 1.40×10−2
1. 0 answers
2. 516 views
The electric field at the point x = 5.00cm and y = 0 points in the positive x direction with a magnitude of 10.0 N/C. At the
1. 0 answers
2. 1,168 views
An object with a charge of -4.5 micro C and a mass of 1.1×10−2 kg experiences an upward electric force, due to a uniform
1. 0 answers
2. 1,074 views
Two point charges, the first with a charge of +3.04×10−6 C and the second with a charge of -4.63×10−6 C , are separated by
1. 0 answers
2. 849 views
Water flows through a horizontal tube of diameter 2.9 cm that is joined to a second horizontal tube of diameter 1.5 cm. The
1. 0 answers
2. 629 views
Water flows through a horizontal tube of diameter 2.9cm that is joined to a second horizontal tube of diameter 1.5 cm. The
1. 1 answer
2. 1,551 views
A 5.2 m wire with a mass of 86 g is attached to the mast of a sailboat. If the wire is given a "thunk" at one end, it takes
1. 1 answer
2. 1,364 views
In a pig-calling contest, a caller produces a sound with an intensity level of 110 dB.How many such callers would be required to
1. 1 answer
2. 1,882 views
the measure of one angle of a linear pair is 3 thimes the measure of the other angle. find the measures of the two angles
1. 1 answer
2. 508 views
how about if the raduis of right circular cone is given and the surface area is given what is the formula? help please?
1. 1 answer
2. 495 views
what are the basic concepts of human interaction from a psychology perspective. In your examination, describe at least two
1. 3 answers
2. 1,634 views
what is the smallest solution to4(x -1) > 16
1. 3 answers
2. 379 views
heip me I tried everything 4(x -1) > 16
1. 1 answer
2. 330 views
help me please What is the smallest solution to the inequality 4 (x -1) > 16?
1. 2 answers
2. 975 views
can someone help me solve this equation5x - 12 < 20
1. 1 answer
2. 402 views
help please this question is driving my crazy.Suppose there is a 2-degree drop in a temperature for every thousand feet that an
1. 3 answers
2. 554 views
translate to an algebraic expression49 less than b
1. 2 answers
2. 1,367 views
The speed of a train increased from 15 mi/hr to 25 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2.
1. 1 answer
2. 1,136 views
1.The speed of a train increased from 15 mi/hr to 25 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2.
1. 1 answer
2. 1,501 views
Which organization would you call if you were involved in a natural disaster?
1. 2 answers
2. 526 views
In, 1914 how many European nations controlled territory in Africa?
1. 1 answer
2. 543 views
the perimeter of an isosceles triangle is 30 inches. the legs are 1/3 as long as the base. set up an equation to find each side
1. 0 answers
2. 598 views
what is the difference between an investigation topic and a research question?
1. 0 answers
2. 349 views
How would i write an hypothesis for this?What grass seed grows the fastest?
1. 8 answers
2. 1,037 views
name three population characteristics that tell us whether a country's population is changing(growing, stable, or shrinking)
1. 1 answer
2. 776 views
natural environment, history, and level of economic development are factors that influence population patterns. Looking at the
1. 8 answers
2. 817 views
where are most of australia's cities located?
1. 6 answers
2. 427 views
awhh man:( i just had one left.A store owner buys coats for 56$ each. she adds 30% to the cost and sells the coat s at 15% off.
1. 8 answers
2. 1,230 views
i feel like ive been using u. but i have learned how to do the questions properly, and how to set them up. that's what i like
1. 2 answers
2. 522 views
the sale price of a computer at 15% off is $746.30. What is the regular price?
1. 23 answers
2. 2,979 views
janine is paid commission of 3% on all sales up to and including $10 000, and 5% on all sales over 10 000. how much commission
1. 4 answers
2. 1,392 views
I just have one quick ( millionth ) question. :)how much is PST and GST right now?
1. 10 answers
2. 502 views
A cruise ship travelled 84 km in 3.5 h. At this rate, how long will it take to travel 1050 km?
1. 5 answers
2. 1,757 views
write each increase or decrease as a percent.the price of gasoline rose from 97.5/L to 101.4/L. Percent increase= i did: 101.4 -
1. 4 answers
2. 975 views
calculate o.76& of 150% of 6000.i did 0.0076 x 150 = 1.14 6000 x 0.0114 = 68.4 but im not really sure how to do it. plz help!
1. 13 answers
2. 1,988 views
Find the amount in each case.a) 8% is 56 kg. can u set up cross multiplication for this? 8/100=x/56
1. 6 answers
2. 798 views
In 1805, the population of a small town was 2120. By 1905, the population increased to 115% of the 1895 figure.a) what was the
1. 9 answers
2. 1,556 views
in a bag of coloured cubes, the ratio of red cubes to total number of cubes is 5:7. If there are 105 cubes in the bag, how many
1. 8 answers
2. 1,272 views
hannah morris and hannah kim are going for the top batting average in thier softball league.Today is thier last game.up to
1. 1 answer
2. 501 views
mrs.wheelbarrow weasel is less than 100 years old.her year of birth is divisible by 23 and 17, as well as by one other prime
1. 2 answers
2. 478 views
A 1,5000kg car starting from rest is accelerated by a force of 2,oooN during the first 15seconds of its motion. Find the speed
1. 1 answer
2. 489 views
advanteges and disadvanteges of fossil fuelsCheck this site. http://home.clara.net/darvill/altenerg/fossil.htm advantages easy
1. 0 answers
2. 572 views

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