The half life of a scandium-46 is 84 days. The scandium-46<span> is used in oil refining as a tracer to monitor the oil movement and it emits </span><span>extremely high energetic gamma/beta radiation. So the half-life of the radioisotope scandium-46 is 84 days. The </span>Scandium 46 created by neutron activation, is a synthetic isotope of Scandium.
Answer:
1) MgO + 2HBr -> MgBr2+H2O
2)2N2+5O2->2N2O5
3)C2H4+2O2->CO2+2H2O
4)Fe+2HCl->FeCl2+H2
Answer: equal to the substrate concentration when the reaction rate is half its maximal value.
Explanation: the KM is known as The Michaelis constant. The value of the Michaelis constant KM is numerically equal to the substrate concentration at which the reaction rate is half of Vmax.
The KM value for an enzyme depends on the particular substrate and on environmental conditions such as pH, temperature, and ionic strength.
