Compounds have physical properties that
a. resemble the physical properties of one of their elements.
b. differ greatly from the properties of all of their elements.
c. resemble the physical properties of all of their elements.
d. differ greatly from the properties of one of their elements.

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

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?

Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?