Which statement is true about the elements present in a pure substance? A. They maintain their chemical properties.
B. They are composed of many compounds.
C. They can be separated by physical methods.
D. They can only be separated by chemical methods.

Clouds form when water vapor to form small droplets. a. humidifies b. condenses c. evaporates d. precipitates

Ineed with my science work! it’s due tomorrow!

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?