The discovery of the first basic elements in nature was sufficient to begin the era of industrial revolution through combining two or more of these elements in order to speed up the production processes.
The first discovered elements in nature were: sulphur chlorine argon neon carbon oxygen helium silicon calcium hydrogen nitrogen sodium fluorine lithium aluminum
<span>This is a simple matter of looking up the discovery date of the elements. And the results are
Known since ancient times
Copper, Sulfur, Silver, Tin, Antimony, Gold, Mercury, Lead
Then somewhere around 1400, Bismuth.
1669 Phosphorus
1694 Carbon
1735 Iron
1735 Platinum
1751 Nickel, Cobalt
1755 Magnesium
The list in alphabetical order is:
Antimony, Bismuth, Carbon, Cobalt, Copper, Gold, Iron, Lead, Magnesium, Mercury, Nickel, Phosphorus, Platinum, Silver, Sulfur, and Tin</span>
The correct option is: (D) would function as both an acid and a base
Explanation:
A carbon skeleton bonded to a amino group as well as a carboxyl group, will behave as an acid in basic medium and base in acidic medium. This is because the carboxyl group present in the compound will release a proton in basic medium and the amino group will accept a proton in the acidic medium.
<u>Therefore, a carbon skeleton which is covalently bonded to a carboxyl and amino group will behave as both acid and base.</u>
Fossil fuels are buried geologic deposits of organic materials. They are made of decaying plants and animals that have been turned into to natural oil. A few examples of fossil fuels are coal and oil.
