Count the significant digits in each of these measurements: measurement number of significant digits −×2.010−3kJ/mol 72600.kg 0.007700J ×5.710−1mL

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.

A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml