Which statement concerning MgBr2 is true? A. MgBr2 has properties similar to sodium metal and chlorine gas.
B. MgBr2 is a homogeneous mixture.
C. MgBr2 is a heterogeneous mixture.
D. The percentage of Mg in MgBr2 is dependent on where the sample is obtained.
E. MgBr2 is a compound composed of Magnesium and Bromine

E i believe so not sure

The flowers in a flower arrangement are actually alive

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.