• How many tons of CO2 are produced for each ton of methane burned?

    The answer is 2.75 ton, but I'm not sure how to derive it.
    The answer is 2.75 ton, but I'm not sure how to derive it.
    5 answers · 7 days ago
  • Organic chemistry problem??

    Best answer: X Must be 1-chloro-2-ethylpentane since only one alkene can form.
    Y Is 2-bromo-2-ethylpentane. Both compounds must have this skeleton to give the hydrogenation product noted. Both compounds are consistent with the reactivity with nucleophiles.
    Best answer: X Must be 1-chloro-2-ethylpentane since only one alkene can form.
    Y Is 2-bromo-2-ethylpentane. Both compounds must have this skeleton to give the hydrogenation product noted. Both compounds are consistent with the reactivity with nucleophiles.
    4 answers · 6 days ago
  • Do molecules have to be able to h-bond with water to be soluble?

    Best answer: NO. There are many compounds that are soluble in water but do not have hydrogen bonding capabilities. They can be polar (and soluble in water) without having H bonded to N, O, or F (required for H bonding).
    Best answer: NO. There are many compounds that are soluble in water but do not have hydrogen bonding capabilities. They can be polar (and soluble in water) without having H bonded to N, O, or F (required for H bonding).
    4 answers · 6 days ago
  • Will burning any of the given carbon compounds will give a deposition on a plate if we keep that plate above the flame produced?

    Best answer: A standard test for aromatic compounds is that in a Bunsen flame, they burn with a bright yellow sooty flame. This happens because of their high carbon content leads to combustion in a deficiency of oxygen. Of the compounds you list naphthalene is aromatic and is the one which would definitely leave a sooty black... show more
    Best answer: A standard test for aromatic compounds is that in a Bunsen flame, they burn with a bright yellow sooty flame. This happens because of their high carbon content leads to combustion in a deficiency of oxygen. Of the compounds you list naphthalene is aromatic and is the one which would definitely leave a sooty black deposit on a plate or any glassware placed in the flame.
    4 answers · 1 week ago
  • Writing the net ionic equation for a chemistry reaction with buffer solutions?

    A buffer solution is made that is 0.441 M in CH3COOH and 0.441 M in CH3COO. Write the net ionic equation for the reaction that occurs when 0.129 mol KOH is added to 1.00 L of the buffer solution. I cannot get this I've tried everything! I need a chem genius to help!
    A buffer solution is made that is 0.441 M in CH3COOH and 0.441 M in CH3COO. Write the net ionic equation for the reaction that occurs when 0.129 mol KOH is added to 1.00 L of the buffer solution. I cannot get this I've tried everything! I need a chem genius to help!
    5 answers · 1 week ago
  • Is solder wire safe to play with?

    Is solder wire safe to play with?

    I KNOW it sounds weird but in chemistry we had an experiment and one of the metals that we were experimenting with was solder (?solder wire?). I was playing with it and it just felt like it would be nice to fiddle with in class (it was really flexible and smooth) because I always crack my knuckles. In the past... show more
    I KNOW it sounds weird but in chemistry we had an experiment and one of the metals that we were experimenting with was solder (?solder wire?). I was playing with it and it just felt like it would be nice to fiddle with in class (it was really flexible and smooth) because I always crack my knuckles. In the past playing with blue tac was good at distracting me from doing so. So I was just wondering if this metal is safe to frequently handle and if traces are dangerous if ingested (like touching food or opening drink bottle). I'm asking because I'm finding it hard to find information about this wire/whatever it is as I can't identify the metal - I just get results about joining metals together when i type 'solder'
    4 answers · 1 week ago
  • How do doctors/scientist come up with cures for cancer?

    I'm not really sure how doctors or scientist or both don't have a cure for cancer yet. Why have they not paired up all the greatest scientest/doctors in the world and have them all work together to come up with a cure in a lab or something? They have so much money for funding I can't imagine how they... show more
    I'm not really sure how doctors or scientist or both don't have a cure for cancer yet. Why have they not paired up all the greatest scientest/doctors in the world and have them all work together to come up with a cure in a lab or something? They have so much money for funding I can't imagine how they couldn't afford to be able to test the things they need. How is it done so doctors from different hospitals just pop up with breakthrough one day or do they all just meet to brain storm. I know cancer is super complicated but it just wouldn't seem impossible to cut if doctors from around the world worked together to come up with a cure?
    7 answers · 2 weeks ago
  • HOW IS WATER FORMED FROM GASES Hydrogen & Oxygen ?

    Best answer: A hydrogen gas molecule consists of two hydrogen atoms. A hydrogen nucleus has a positive charge of one unit and must be balanced by one electron to be electrical neutral - but since electrons don't like to be alone, the atom seeks another hydrogen atom with which the two electrons can orbit the two nuclei... show more
    Best answer: A hydrogen gas molecule consists of two hydrogen atoms. A hydrogen nucleus has a positive charge of one unit and must be balanced by one electron to be electrical neutral - but since electrons don't like to be alone, the atom seeks another hydrogen atom with which the two electrons can orbit the two nuclei together - we say they form a molecule. This molecule is electrically neutral, so the molecules don't interact with each other but can fly around freely. Therefore, hydrogen is a gas. Oxygen is a gas for similar reasons.

    Two hydrogen atoms can join with one oxygen atom to form a boomerang-shaped molecule with oxygen in the middle. Since the electron orbit in hydrogen is smaller than in oxygen, the electrons that orbit both the oxygen nucleus and one of the hydrogen nuclei is more often to be found near the oxygen atom, giving the molecule a negative charge near the "corner" of the boomerang where the oxygen is and a positive charge centered opposite the "corner", i.e. between the two hydrogen nuclei.

    Those electrical charges make water molecules attract each other. The tend to form long, fragile chains that are too heavy to fly around at low temperatures. Therefore, water is a liquid.

    It's a unique property for such a light molecule as water to be a liquid with such a high boiling point. CO2 and buthane, for example, are heavier per molecule than water but because they have no charged ends they are gases. Methanol is another example of a light-molecule liquid. But a methanol molecule is less charged than water is, so it will boil at a lower temperature than does water.
    5 answers · 1 week ago
  • Chemistry Help?

    How many liters of hydrogen gas are needed to react with 15 liters of nitrogen gas in the reaction forming ammonia, NH3? 3H2 (g) + N2 (g) -> 2 NH3 (g) *Show all work.*
    How many liters of hydrogen gas are needed to react with 15 liters of nitrogen gas in the reaction forming ammonia, NH3? 3H2 (g) + N2 (g) -> 2 NH3 (g) *Show all work.*
    4 answers · 1 week ago
  • Does a catalyst shift an equilibrium? Why or why not?

    Best answer: No the equilibrium is unaffected by a catalyst. What a catalyst does is increase the rate at which the equilibrium position is reached. The position of chemical equilibrium depends only on the energy levels of reactants and products and is independent of the path taken to pass from one to the other. A catalyst... show more
    Best answer: No the equilibrium is unaffected by a catalyst. What a catalyst does is increase the rate at which the equilibrium position is reached. The position of chemical equilibrium depends only on the energy levels of reactants and products and is independent of the path taken to pass from one to the other. A catalyst provides an alternative pathway with a lower energy barrier so speeding the process up but leaving the concentrations of products and reactants unchanged.
    4 answers · 1 week ago
  • Basic Chemistry Questions?

    My younger sister needs help with test prep, and I ve only just started chemistry so I have no idea. 1) If you mix a strong acid with a base, will it still react with metals? Why/why not? 2) If you mix a strong base (like drain cleaner) with an acid, will it still corrode material in your sink drain? Why/why not?... show more
    My younger sister needs help with test prep, and I ve only just started chemistry so I have no idea. 1) If you mix a strong acid with a base, will it still react with metals? Why/why not? 2) If you mix a strong base (like drain cleaner) with an acid, will it still corrode material in your sink drain? Why/why not? We can t find the answers anywhere in her textbook, so any help is greatly appreciated!
    4 answers · 1 week ago
  • Is Fe2O3+3H2--->2Fe+3H2O a redox reaction?

    11 answers · 2 weeks ago
  • Chemistry Questions (Best Answer Awarded)?

    How many calories are needed to warm 2.50 kg of water 5.00 ˚C? How many Joules does it take to heat a 2.50 g silver bracelet from 25.0 ˚C to 45.0 ˚C? (csilver = 233.0 J/kg°C)
    How many calories are needed to warm 2.50 kg of water 5.00 ˚C? How many Joules does it take to heat a 2.50 g silver bracelet from 25.0 ˚C to 45.0 ˚C? (csilver = 233.0 J/kg°C)
    5 answers · 2 weeks ago
  • What is the chemical equation for boiling tap water?

    My distilled water sometimes has an off taste and i dont know whats causing it. I would like to know the chemical equation for boiling TAP water, not pure water. What common compounds are found in tap water?
    My distilled water sometimes has an off taste and i dont know whats causing it. I would like to know the chemical equation for boiling TAP water, not pure water. What common compounds are found in tap water?
    7 answers · 2 weeks ago
  • How many molecules are there in 0.5 mol of?

    Best answer: 1 mol of any compound (including of course CO2 and O2) contains 6.022*10^23 molecules
    Therefore 0.5 mol of CO2 and O2 contains 3.01*10^23 molecules of each.
    Best answer: 1 mol of any compound (including of course CO2 and O2) contains 6.022*10^23 molecules
    Therefore 0.5 mol of CO2 and O2 contains 3.01*10^23 molecules of each.
    7 answers · 2 weeks ago