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What were negative and positive controls in the Benedict's test?
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How can you tell which is positive and which is negative on a speaker hookup?
Depending on colours of course black is usually negative and the other colour (generally red but depends) is positive. Get a D-cell Battery. Now get two pieces of speaker wire. hold one wire on the positive terminal of the battery and hold the other on the negative side of the battery. touch the wires to the positive and negative posts on the speaker. if the cone moves out ward the positive and negative are correct if it moves inward then the positive and negative are reversed (out of phase.) this simple test will allow you to see which terminal is which. Get a D-cell Battery. Now get two pieces of speaker wire. Hold one wire on the positive terminal of the battery and hold the other on the negative side of the battery. Touch the wires to the positive and negative posts on the speaker. If the cone moves outward the positive and negative are correct if it moves inward then the positive and negative are reversed (out of phase.) this simple test will allow you to see which terminal is which.
Can you have aids negative or positive?
Not exactly. "HIV positive" means that someone's test for HIV antibodies came back positive, i.e. that the antibodies are present and that the person has at least been exposed to, and is almost certainly infected with, the virus. AIDS, however, is a syndrome, or condition. There isn't a specific test for it, so the terms "positive" and "negative" have no real meaning. AIDS means that not only is the person infected, but the infection has progressed to the point that they are showing symptoms. You can be "HIV positive" (the test showed antibodies) or "HIV negative" (the test did not show antibodies), but not "AIDS positive" or "AIDS negative". Everyone with AIDS is (or should be, since HIV is the virus that causes AIDS) "HIV positive", but it's possible to be "HIV positive" for a considerable length of time before eventually developing AIDS.
What is the value of chi square test positive or negative?
There must be some value otherwise nobody would do them. On that basis, the value must be positive.
What if the pregnancy test is nor positive nor negative?
Make sure you peed on the strip then redo. if still neither you have a 50-50 shot.
If a function is negative at a test number it will reach zero before it reaches an asymptote?
Not necessarily. f(x) = -1-x2 is negative for any test value of x, it is asymptotically negative infinity, but it is NEVER zero.
Do eggs test positive in benedicts test?
yes
What are the Benedicts test results for glucose?
the solution will turn a 'brick red' colour if positive but will stay blue if negative.
Would sucrose test positive or negative with benedicts reagent?
No, surcose is a disaccharide without a hemiacetal group
Will hydrolysed dextrine give positive response to Benedict test?
Yes, it should. Benedicts test will be positive for reducing sugars, and since glucose is such a sugar, and would be a product of dextrin hydrolysis, you should get a positive result with Benedicts reagent.
What does a negative Benedicts test indicate?
A negative Benedict's test would indicate that there isn't any presence of reducing sugars in that particular substance.
Which is more sensitive test fehlings test or Benedicts test?
benedicts test
Can a positive pregnancy test turn negative?
No , but a negative test can be a false positive .
Can you test positive and test negative at the er?
It is possible to have inconclusive test results, but not to test both positive and negative at the same time.
Can your test come out positive then negative?
If it's a pregnancy test the answer is no, A test can come back negative even though its positive. But if it's positive, it's positive 99% of the time.
Does Sarcina test positive or negative for the voges-proskauer test?
negative
Definition of a control setup?
Two kinds of controls: Positive and Negative. Depending on the test/Instrument, Positive controls will have an indication or contain the specific substance that the test or instrument is used for. (Mostly for abnormal people according to the population.) Negative controls don't contain anything. (Mostly for normal people within the population.) --
Which indicator would most likely yield a positive test by way of a color change in the water-cookie solution?
Benedicts solution
