H2O” and “HOH” redirect here. Flammability code 0: Will not burn. Health zumdahl chemistry 6th edition pdf free 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material.
Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. This allows it to be the “solvent of life”. It is also the third most abundant molecule in the universe. Because water is a very good solvent, it is rarely pure, and some of the properties of impure water can vary from those of the pure substance. There are also many compounds that are essentially, if not completely, insoluble in water, such as fats, oils and other non-polar substances. These derivatives commonly have other recommended names.
None of these exotic names are used widely. Ice also appears colorless, and water vapor is essentially invisible as a gas. However, these bonds are strong enough to create many of the peculiar properties of water, some of which make it integral to life. Visible steam and clouds are formed from minute droplets of water suspended in the air. In nature this only rarely occurs in extremely hostile conditions. Most of the additional energy stored in the climate system since 1970 has accumulated in the oceans. Of common substances, only that of ammonia is higher.