Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
- All Categories
- Science & Mathematics
- Chemistry
Chemistry
Discover
- 2Upvotes of all answers in this question
is it normal to spontainosly combust asking for a friend?
Favorite Answer:Yep, best not to have any friends, they're too dangerous.
5 Answers2 weeks ago - 9Upvotes of all answers in this question
am i gay or am i just uglt?
8 Answers3 weeks ago - 6Upvotes of all answers in this question
How do you make fuel out of water? ?
7 Answers3 weeks ago - 23Upvotes of all answers in this question
Options other than Yahoo Answers?
I see that Yahoo is shutting down Yahoo!answers at the beginning of May. For those of you who answer questions here, what are other options for asking and answering questions like this? I've actually enjoyed spending time here and helping people deal with Chemistry questions. Where else can I do something similar?
9 Answers4 weeks ago - 10Upvotes of all answers in this question
is there a way to melt sand using a oven?
Yes or no without it being a fire hazard possible yes no
6 Answers3 weeks ago - 7Upvotes of all answers in this question
Is it possible to blow up a balloon while you’re under water?
5 Answers4 weeks ago - 20Upvotes of all answers in this question
Can I be transracial?
7 Answers1 month ago - 4Upvotes of all answers in this question
How to remove glue / adhesive residue from metal?
Favorite Answer:Have you tried WD-40 (the miracle chemical?)
Acetone, petrol, dichloromethane are all the same class of chemical. I suspect your "glue remover" is more of the same (ethanol + C12-C14 alkanes). If they haven't worked so far, they're not going to do it.
5 Answers1 month ago - 3Upvotes of all answers in this question
A sample of gas has an initial pressure of 1.50 atm at a volume of 3.40 L at a temperature of 20.0°C. ?
Favorite Answer:(3.40 L) / (20.0 + 273.15) K x (20.0 + 10.0 + 273.15) K x (1.50 atm / 2.50 atm) =
2.11 L
4 Answers1 month ago - 2Upvotes of all answers in this question
If our state was represented by just one food, what would it be?
Favorite Answer:Granola. Fruits, nuts, and flakes.
7 Answers1 month ago - 5Upvotes of all answers in this question
4grams of sugar in a teaspoon looks like?
7 Answers1 month ago - 6Upvotes of all answers in this question
Where can you see or use Lithium????
10 Answers1 month ago - 5Upvotes of all answers in this question
one mole of a gas occupies 22.4 L at 0°C and 760 mm Hg. ?
Favorite Answer:(22.4 L/mol) x (2.00 mol) = 44.8 L
(760 mmHg) x (44.8 L / 3.00 L) x (25 + 273) K / (273 K) = 12389 mmHg =
12400 mmHg
[Kenny B: Knowing the molar volume relieves you from knowing any value for R.]
4 Answers1 month ago - 16Upvotes of all answers in this question
What does phenolphthalein do?
Favorite Answer:It turns color to indicate the pH of a liquid solution. It's also pretty good for weeding people out of spelling bees.
6 Answers2 months ago - 3Upvotes of all answers in this question
Pure magnesium metal is often found as ribbons and can easily burn in the presence of oxygen. ?
Favorite Answer:2 Mg + O2 → 2 MgO
(4.99 g Mg) / (24.30506 g Mg/mol) = 0.20531 mol Mg
(8.79 g O2) / (31.99886 g O2/mol) = 0.27470 mol O2
0.20531 mole of Mg would react completely with 0.20531 x (1/2) = 0.102655 mole of O2, but there is more O2 present than that, so O2 is in excess and
Mg is the limiting reactant.
(0.20531 mol Mg) x (2 mol MgO / 2 mol Mg) x (40.3044 g MgO/mol) x (84.5 / 100) =
6.99 g MgO (product)
5 Answers2 months ago - 1Upvotes of all answers in this question
- 1Upvotes of all answers in this question
what are the uses of dry ice ?
8 Answers2 months ago - 17Upvotes of all answers in this question
What's stronger than acid?
Favorite Answer:Acids aren't all equally powerful, they come in different concentrations. That's the important thing. One can even drink weak acids but drinking concentrated acids would cause a painful death. It's like asking how long is a piece of string?
11 Answers2 months ago - 8Upvotes of all answers in this question
Is carbon a gas at stp ?
5 Answers2 months ago - 2Upvotes of all answers in this question
What chemical is best for dissolving flesh? For a story?
I'm writing a book, chill. I just want to know so it can be accurate. Hydrofluoric acid was my original choice, but then Sodium Hydroxide came up and a few others, which would be the fastest? [Ok it's not just for the story, but I'm really into criminal cases and I'm curious so-]
5 Answers2 months ago