Science Question 1

How many helium atoms must undergo fusion at 100 million K in the helium flash?

A.Two
B.Three
C.Four
D.Six
E.It varies with density


At that temperature, three form carbon, and a fourth with the carbon forms oxygen. This is the main source of carbon and oxygen in the universe.

So the question makes no sense to me. Two join to form unstable Be, a third added makes carbon, and a fourth makes Oxygen. THis occurs at 100M Kelvins. This process is the helium flash at 100Million K.

Temperatures that exceed 100M Kelvins, three form the Carbon directly, skipping the Be step. A fourth can make Oxygen.

c four

c four

  1. 👍 0
  2. 👎 0
  3. 👁 76
asked by Liz

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    how many helium atoms must undergo fusion at 100 million K in the helium flash?

    asked by bolometric on February 7, 2007
  2. ap chem

    A mole of helium gas contains 6.02x10^23 helium atoms. How many helium atoms are there in a micromole of helium? How many moles of helium does 1.25x10^20 atoms of helium represent? ~I have no idea how to start or what the value of

    asked by sara on December 13, 2006
  3. Chemistry

    A mole of helium gas contains 6.02x10^23 helium atoms. How many helium atoms are there in a millimole of helium? In a kilomole

    asked by Ayavuya on February 25, 2018
  4. Physics

    A sealed container of volume V =0 .10m^3 holds a sample of N =3 .0×10^24 atoms of helium gas in equilibrium. The distribution of speeds of the helium atoms shows a peak at 1.1×10^3 ms^−1. (i) Calculate the temperature and

    asked by Anon on March 20, 2018
  5. Physics

    A sealed container of volume 0.10 m3 holds a sample of 3.0 x 10^24 atoms of helium gas in equilibrium. The distribution of speeds of helium atoms shows a peak at 1100 ms-1. Caluculate the temperature and pressure of the helium

    asked by Oli on May 19, 2008
  6. SCIENCE

    What is the chemically combined substance of a hydrogen atom and a helium atom. please help me because i really don't know this is confusing really please and thankyou Hydrogen atoms don't normally combine with helium atoms. In

    asked by Anonymous on November 7, 2006
  7. 12th grade physics

    Helium is monatomic with a relative atomic mass of 4. calculate (i) the density of helium gas at a temperature of 0 degrees Celsius and a pressure of 101kPa and (ii) the rms speed of the helium atoms under these conditions

    asked by Enya on September 20, 2010
  8. Science Question 2

    The helium flash converts three helium nuclei to what heavier element? A.beryllium B.boron C.lithium D.carbon E.iron Carbon. Carbon has six protons, obtained from three helium nuclei.

    asked by Liz on December 11, 2006
  9. physics

    A portable steel tank with a volume 35 liters (0.035m³) holds helium gas used for filling party balloons. The pressure in the tank is 120atm when at room temperature of 22 °C. How many moles of helium gas are in the tank? Each

    asked by sand on January 4, 2012
  10. Chemistry

    A helium balloon contains 0.54g of helium. Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it contain?

    asked by Mira on February 22, 2013

More Similar Questions