Which of the following statements is true?

a: the periodic table is organized in order of atomic number.
b: elements in the same period have similar properties.
c: substances in a mixture lose their unique properties.
d: heterogenous mixtures are also called solutions.

Which suspect most likely committed the robbery and how do you know

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action