I believe the ratio is 1:2
Answer:
Give any two application for isotopes
Isotopes of iodine are used for radiotherapy in treatment of hyperthyroidism, cancer, etc.
Uranium, Radium, Polonium isotopes are used in atomic reactors.
Cobalt isotopes are used for irradiation of food products.
Carbon can react with oxygen to form carbon dioxide. Which of the following statements about this chemical change is true? ... Carbon and oxygen atoms are destroyed as new atoms are formed. Carbon and oxygen atoms have the same properties as molecules of carbon dioxide.
Answer:
The energy for a quantum of light is 2.84 x 10-19
try that
When the heat lost by water = heat gained by ethanol
∴( M* C * ΔT )w = (M*C*ΔT ) eth
when Mw mass of water = 40 g
C specific heat of water = 4.18
ΔT = (70- Tf)
and M(eth) mass (ethanol) = 40 g
C specific heat of ethanol = 2.44
ΔT = (Tf - 10 )
by substitution:
40* 4.18 * (70 - Tf) = 40 * 2.44 * (Tf-10)
∴Tf = 47.9 °C
