In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.
Did you know?
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Did you know?
The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Personal care setting.
Hydrogen Bond
Peptides and the Peptide Bond
Metallic bond
Hydrogen bond
A $50 000 bond bearing interest at 6.5% bond payable semi-annually matures in 10 years. If it ...
