Agraduated cylinder was filled with water to the 25.0 ml mark and weighed. its mass was 105.5g. an object made of an unknown metal was placed in the cylinder and completely submerged in the water. the water level rose to 30.7 ml. when reweighed, the cylinder, water and metal object had a total mass of 156.0g. based on these measurement, what is the density of the unknown metal?

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

Which compound contain an iron with a 3+ charge

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.