From the table or densities found in this experiment iron has a density of 7.85 g/cm^3 and water has a density of 1.0 g/mL iron is denser than water and will sink when placed in water Explain how ships made iron stay afloat using density principles

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

At element makes up all organic compounds?