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Lena

Questions (456)

methyl benzene + oxygenis this just a combustion reactions so CO2 and H2O are produced?
1. 6 answers
2. 1,462 views
What if both carbon's have the same number of hydrogens, then which carbon gets "richer" in hydrogens?
1. 0 answers
2. 388 views
I have a question that say 2-butyne reacts with hydrogen and butane is the product. Wouldn't 2-butene be the product because
1. 2 answers
2. 949 views
if I had ethane reacting with chlorine would the chlorine remove two hydrogens and form dicholorethane?
1. 4 answers
2. 442 views
For methyl-2-butene how do I know what the methyl group is coming off of?
1. 2 answers
2. 458 views
Br| CH3 - CH2 - CH - CH - CH2 -CH3 | CH2CH3 How would I name the structure above? Would it be 3-bromo-3-methylpentane?
1. 9 answers
2. 757 views
I need a word to describe children in the sense that they are pure. Pure as in they don't hate, they don't judge people based on
1. 3 answers
2. 532 views
I need a word for the following description:when children come into the world they`re vulnerable to like racism and sexist
1. 2 answers
2. 504 views
I`ve looked at a lot of websites regarding how a hearing aid work but none of them told how the sound waves were involved in
1. 2 answers
2. 573 views
I`ve looked at a lot of websites regarding how a hearing aid work but none of them told how the sound waves were involved in
1. 0 answers
2. 1,026 views
Could someone tell me what sound barrier is and what it means to break the sound barrier (in really simple terms)?
1. 3 answers
2. 510 views
What is a real-life appliction of resonance in tubes? I've already written down musical intruments like the organ and flut and
1. 3 answers
2. 394 views
How is it possible to have an instrument like a bugle that has a fixed-air column play a melody?
1. 2 answers
2. 387 views
How is it possible to have an instrument like a bugle that has a fixed-air column play a melody?
1. 1 answer
2. 446 views
Why does frequancy stay the same when going through different mediums?
1. 1 answer
2. 351 views
Is this statement correct:When part of sound travelled through water, wavelength and speed of sound would change because since
1. 1 answer
2. 659 views
I did a lab in which we were to find the 1st resonance and 2nd resonance and from them we found wavelength which in turn helped
1. 0 answers
2. 574 views
There was a substance I used in a lab for chem class and I`m not too sure what it was. They were tiny white balls about a
1. 1 answer
2. 551 views
Colloidal sulfurWould it be network, molecular, ionic or atomic?
1. 1 answer
2. 700 views
Is sugar an ionic, a molecular or a network convalent substance?
1. 12 answers
2. 703 views
There was this substance we used in a lab and I'm not quite sure what it is. It was a clearish, flaky, solid. It was brittle and
1. 8 answers
2. 421 views
The question said find the speed of sound at a certain temperature. What formula would you use?Could someone tell me the formula
1. 3 answers
2. 499 views
The question is as followed:Express (rootP + 2 x rootQ)(rootQ - rootP) This is what I did: (rootP + 2 x rootQ)(rootQ - rootP) =
1. 2 answers
2. 318 views
The question is as followed:y=-3x^2 + 4x This is how I solved it: y=-3x^2 + 4x y= -3 (x^2 + 4/3x) y= -3(x^2+4/3x +4/9) + 4/3 y=
1. 2 answers
2. 532 views
I`m trying to find the theme of an egyptain myth called The Story of Re or the Egyptain Creation myth and I'm the hardest time
1. 1 answer
2. 454 views
what are the comman themes in all egyptain myths?
1. 6 answers
2. 345 views
To get into an actuarial science program I was wondering was sort of high school courses I would need to take and what kind of
1. 4 answers
2. 521 views
I was asked to compare my measured focal length to my calculated focal length. My calculated focal length I figured out by using
1. 2 answers
2. 593 views
i`m being asked to find the focal length. I know that the distance from the lens to the object is 35 cm and that the distance
1. 5 answers
2. 462 views
is the image that a magnifying glass produces real or virtual and how do you figure that out?
1. 3 answers
2. 2,804 views
How would I factor this:x^2 - 3x - 1
1. 2 answers
2. 432 views
how would I simply this:(y-2)/(2-y)
1. 2 answers
2. 407 views
How would I figure this out:4^t = 8^t-1 Just by looking at it, I know that x = 3 but how would I figure this out mathematically?
1. 2 answers
2. 364 views
is there any trick I can use to solve the question below without expanding:2^3 + 2^4
1. 4 answers
2. 355 views
How is Snell's law being used in real life application?
1. 1 answer
2. 3,509 views
I did a lab on refraction through water and my index of refraction was way off and I don't understand why? I did the experiment
1. 1 answer
2. 541 views
We were doing a refraction lab where you passed a lazer beam through a water in a semi-circular dish. I was wondering why we
1. 7 answers
2. 3,103 views
How do I find index of refraction if I have the incident angle and refraction angle?
1. 7 answers
2. 449 views
Does this line make sense:something good comes of everything
1. 1 answer
2. 376 views
What do people mean when they say love is blind?
1. 2 answers
2. 376 views
I need a word that fits this description: something that completes somthing else.
1. 5 answers
2. 479 views
Can I use past tense in third-person narrative?Like being the first child of her family, she had the burden of ...
1. 8 answers
2. 842 views
I need to write a thrid- person narrative about someone. I wrote the beginning and I was wondering if this was good enough to be
1. 8 answers
2. 657 views
If there were one thing that I’ve ever wanted to achieve in my life, it would be to become at least half the person she is.So
1. 3 answers
2. 530 views
I wanted to join these two sentances together.She was so much more than that. She was like a mother. Could I write it like this:
1. 8 answers
2. 561 views
How is sex (gender) determined in mammals?I was thinking that if the male gave over an X chromosome that the baby would for sure
1. 1 answer
2. 561 views
What are those gases that are always bonded to eachother, like they always have the a 2 subscript in an equation?
1. 5 answers
2. 371 views
I don't understand how to find the formula of a hydrate. Here's one of the question. if you guide me through it I think I'll be
1. 2 answers
2. 1,308 views
Why is the experimental Cal/g value usually less than the Cal/g value calculated from the Information on the nutrition label?
1. 1 answer
2. 552 views
Why is active transport necessay in the process of moving food molecules within a plant?
1. 2 answers
2. 386 views
I was asked the question, what are some principles of law that can be used in everyday life?I got the following: don't judge a
1. 3 answers
2. 1,143 views
What is the name of the type of bacteris that live in harsh environments?is the answer, archaebacteria?
1. 1 answer
2. 472 views
Any cures or anything that could help someone affected?
1. 3 answers
2. 387 views
Where did the Spanish Flu start? Not geologically, but who or what did it start from? Since we called it an infulenza pandemic
1. 0 answers
2. 506 views
What does it mean when someone says my grandfather was ottoman? Like what does it mean to be Ottomon?
1. 6 answers
2. 468 views
I had a question that said would butane sink to the floor or rise to the ceiling in air. I would say sink to the floor but I was
1. 2 answers
2. 1,507 views
I did this experiment where I filled a graduated cylinder with water. The I put a stopper on it and put it under water and
1. 3 answers
2. 747 views
If air was at STP and butane was released, would the butance sink or woulf ir rise to the ceiling? I know that the density of
1. 3 answers
2. 488 views
I need to find the mass of butane gas and I only know the following things (you cannot use the molar mass of butane):volume = 80
1. 1 answer
2. 618 views
I did this experiment where I filled a graduated cylinder with water. The I put a stopper on it and put it under water and
1. 2 answers
2. 628 views
2SO2(g) + O2(g) ---> 2SO3It says that 12.0 L of sodium trioxide are produced at 100 degrees celcius. What volume of oxygen is
1. 3 answers
2. 682 views
I'm doing a matching assignment and I'm stuck on the last 2. Could someone please help me?Kingdom Class (to be matched with)
1. 4 answers
2. 697 views
I don;t understand what a taxon is :SI looked at the wikipedia definition and I don;t understand it at all. Could someone please
1. 1 answer
2. 702 views
System of branching divisons that biologists use to place an organism into the appropriate taxon.What would the word be that
1. 0 answers
2. 601 views
How do you download a video from youtube into your my documents?
1. 3 answers
2. 606 views
What digestive enzymes does the pancreas produce (pertaining to the digestive system only)?The only one I know is Pancreatic
1. 1 answer
2. 712 views
The stomach secetes bicarbonate into the small intestine. Does the stomach secrete the bicarbonte into the duodenum? And if so,
1. 1 answer
2. 526 views
where does the small intestine connect to the large intestine?
1. 3 answers
2. 517 views
What is pancreatic amylase. I seem to find every kind of amylase except pancreatic. I need a good, understandable definition.
1. 2 answers
2. 599 views
I'm making a picture book and I need to draw the following, what would they look like?Pepsin Bile Trypsin What I'm asking is
1. 3 answers
2. 871 views
How would someone extract silver from silver nitrate?*silver isn't soluable in water so I was thinking I wouldn't be able to do
1. 10 answers
2. 697 views
Does the pharynx separate the esophogus from the trachea? What's the purpose of the pharynx? If the epiglottis blocks food from
1. 1 answer
2. 550 views
Is the throat the esophogus and the tranchea or is another name for the tranchea a throat. Whats the name for the esophus and
1. 1 answer
2. 490 views
How would one cheak if the water they are drinking is clean?
1. 7 answers
2. 431 views
I am using microsoft publisher 2007. I just installed it yesterday.I made a poster on Microsfot Publisher (1page) and when I
1. 1 answer
2. 521 views
Did I do this right?The shorter leg of a 30°- 60°- 90° right triangle is 7.5 inches. How long is the longer leg and the
1. 4 answers
2. 695 views
What is peaceful assembly?
1. 2 answers
2. 392 views
could you give me an example of the literary term Conflict!?
1. 0 answers
2. 409 views
Using the Charter of Rights & Freedoms as an example, how would I explain what a right is and what a freedom is?
1. 3 answers
2. 549 views
What are some things that are in the Canadian Charter of Rights and Freedoms but is not in the Canadian Bill of Rights?
1. 1 answer
2. 519 views
Between the Canadian Bill of Rights (1960) and the Canadian Charter of Rights & Freedoms, which is better able to protect the
1. 3 answers
2. 820 views
What's the criteria for being a Canadian citizen?And if you are born in Canada are you automatically a Canadian citizen? Like
1. 3 answers
2. 803 views
The Canadian Charter of Rights & Freedoms is a bill of rights. How to I do explain what a 'bill of rights' is to someone about 5
1. 3 answers
2. 687 views
0.27 - actual value of AlCl21.1173 - theoritical value of Alcl2 % Error = [(0.27-1.1173)/1.1173] * 100 = -76 % What are some
1. 2 answers
2. 440 views
For my theortical yield I got 1.1173 gFor my actual yield I got 0.27 g I need to find my percent yield and percent error. Did I
1. 2 answers
2. 439 views
What does a negetive percentage error mean?
1. 2 answers
2. 409 views
I did a lab where I put Copper (II) Chloride in water with Alumnim.2Al + 3CuCl2 -> 3Cu + 2AlCl3 The aluminum on the reactant
1. 4 answers
2. 1,911 views
What are three sources of emobroyonic stem cells and how are they obtained from each?This is what I have so far: 1. Blasocyst of
1. 1 answer
2. 463 views
Whats a homolog?
1. 1 answer
2. 442 views
Are adult stem cells found only in adults human beings or all human beings regardless of age?
1. 1 answer
2. 578 views
heres the question, I totally don't understand it:a few sex linked ttraits in humans are located on the Y chromosome and are
1. 4 answers
2. 602 views
how do i solve systems of three equations with elimination??
1. 1 answer
2. 434 views
what should someone do after being sexually assulted?
1. 2 answers
2. 334 views
Why do people commit sexual assult?This is what I have so far: - for power or control - women-haters - have been assulted in the
1. 2 answers
2. 434 views
I put a peice of copper into a flame and I need to write a word equation for it. Whats a flame made up of cause I wanna writecop
1. 1 answer
2. 718 views
which would have the greatest ionization energy potassium ion, chlorine ion,or argon atom?
1. 0 answers
2. 921 views
road salt has been dropped on grass. keep osmosis in mind, what would happen?answer: since the road salt is hypertonic solution
1. 2 answers
2. 715 views
road salt has been dropped on grass. keep osmosis in mind, what would happen?answer: since the road salt is hypertonic solution
1. 0 answers
2. 515 views
why is it important for the intravenous fluids to have the same solute concentration as your blood?Answer: If the intravenous
1. 1 answer
2. 801 views
why is it important for the intravenous fluids to have the same solute concentration as your blood?Answer: If the intravenous
1. 0 answers
2. 624 views

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