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What else can I help you with?
Does magnesium give a positive pop test when testing with hydrogen?
Yes it does. However, it takes a much longer period of time to get the magnesium to give off hydrogen particles. After a solid 45 minutes you might get a pop, but it's part of the Alkaline Earth Metals which means yes... it will eventually pop.
If you take a HPT and after the 3 minutes there is a very faint line in the positive box but then after 10 minutes it is a dark line does that mean positive?
I would consider that positive. But if you are unsure, take another test.
What does Hydrogen Cyanide do to the human body?
your die within minutes
How do you extract hydrogen peroxidase from liver?
Mash with a hammer for twelve minutes, then stir with two spades until mildly thick. Add in some eggs and fry it up in a pan on high heat for another twenty minutes until well browned. Serving suggestions: Dog vomit substitute Chocolate Icing Green Elves
How long does it take for hydrogen peroxide to effectively kill bacteria?
Hydrogen peroxide can effectively kill bacteria within 10 to 30 minutes of contact.
Is it possible to test negative for marijuana and them positive a few minutes later?
no
How do you preparation hydrogen gas by using acid and zinc?
Get these things: some hydrochloric acid some zinc strips a clear plastic bottle that's got a small neck like a soda bottle, but that isn't a food bottle--this is so someone won't put food in it later and kill themselves a balloon Wear normal lab safety stuff--apron, face shield and rubber gloves. Wash the bottle out and put hydrochloric acid in it. Put the zinc strips in the acid. Wait till it bubbles for a few minutes, then put the balloon over the neck of the bottle. The balloon will be filled with hydrogen. (You give it the few minutes so the hydrogen can push the air out of the bottle. The equation's pretty simple: HCl + Zn = ZnCl + H
1 day hours?
There is a total of 24 hours in each day with each hour containing 60 minutes.
Positive pregnancy test after 10 minutes stated?
Consider this result null and void and redo the test the next morning. THere's a reason why all pregnancy tests state NOT to read results after 10 minutes, it can create a false positive where it reads positive but you're not pregnant. GOod luck
What causes the regions of charge polarity on water?
Water molecules contain two polar ends known as dipoles which are caused by the atoms that make up water. The chemical composition of water is H20 meaning that there are 2 hydrogen atoms bound to one oxygen atom. This bonding does not occur in a straight line and the bond angle between the 2 hydrogen atoms is 109 degrees and 27-28 minutes I believe. The hydrogen Atoms have a positive charge while the oxygen atoms have a negative charge which helps to hold the atom together (along with hydrogen bonding). If you look at a diagram of the structure of water, you will see that the hydrogen atoms are more on one side of the molecule while the oxygen is on the other. this makes one side slightly positive while the other side becomes slightly negative
Does hydrogen peroxide clean pennies?
Yes, hydrogen peroxide can be used to clean pennies. It can help to remove dirt and tarnish from the surface of the penny. Simply soak the penny in hydrogen peroxide for a few minutes and then rinse it off with water.
How long are you supposed to wait for a test to say negative or positive?
usually about 2 minutes
