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☆☆☆☆☆They can both help and hurt the environment. Some chemicals are necessary such as water, minerals, and the air we breathe. The exact effects depend on the exact chemicals. Some chemical waste can harm plants, wildlife, or even humans. Some chemicals such as phosphates can cause excessive red algae to grow in bodies of water. Oil and petrochemicals in the water can kill birds and fish.
The purpose of the scientific method is to remove as much human bias and opinions from science.
A biologist is a scientist devoted to and producing results in biology through the study of life. Typically biologists study organisms and their relationship to their environment. Biologists involved in basic research attempt to discover underlying mechanisms that govern how organisms work. Biologists involved in applied research attempt to develop or improve medical, industrial or agricultural processes.
A "strong" acid (or base) is one that dissociates completely in dilute aqueous solution. One which does not is a "weak" acid (or base). An acid with a pKa (or a base with a pKb) lower than about -2 is considered to be a "strong" acid.
Weak acids and bases can still be quite corrosive. HF is a "weak" acid with a pKa of around 3.2 (which corresponds to only about one molecule out of every 38 or so being dissociated), but it's pretty terrible stuff and will dissolve even glass.
HCI (Hydrochloric acid)
1/2 is less than one.
Engineers design new products that you buy. They design everything from bridges to planes to computers.
Katia was going to teach them a lesson they'd never forget.
No way, she thought, this is ridiculous.
scientists test and continue to retest both new and old chemicals even if they have been tested before
Atoms cannot be divided
Chemists have developed medicine to fight leukemia.
Ka= [h+][HCO3-]/[H2CO3]
Geologist.
Possibly a chemist.
In every area of work
Finding out that asbestos is dangerous and limiting its use in building materials
The causes of honeybee deaths in beehives
savage and war-hungry
sodium hydroxide
HI
All chemicals in the lab are to be considered dangerous. ... Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.
