Antoine Lavoisier

matter is made up of these small particles, and that these atoms, and the matter made from them, cannot be created nor destroyed, merely reshaped and reformed. Modern chemistry unofficially began in the eighteenth century. French scientist Antoine Lavoisier discovered the law of the conservation of mass c. 1785. This law states that “The total mass remains constant during a chemical change,” (Ebbing and Gammon, 7) or that matter does not simply vanish during a chemical reaction. Shortly after…

Elements, the matter that matters, that makes up the Earth we live on. Each one with their own unique and magnificent qualities and properties. Some are seen in every-day life, where others are rare to find. Some can be essential for life, while some not so essential, but still important. Looking at the periodic table, there are probably quite a few that you know, where others may be brand new to you. One of the common elements is Carbon (C). Carbon is essential for life and other important…

Chemical Reaction A Chemical Reaction is when there is change from physical reaction to nuclear reaction. In chemical reaction, there is also a change of a chemical substance to another, which in that case is the change to one or more productions. It 's when a substance changes and when you combine chemicals or mix them, you 'll most likely create a new one, not always but most of the time it will. Cooking food always involves a chemical reaction. It could be from baking a cake by mixing the…

Now for all this history there are certainly important leaders of chemistry that need to be given some credit. First there is Jābir ibn Hayyān who is also known as Gerber. He was a chemist from the eighth century AD. Geber became one of the first people to use scientific methods to study and experiment. Through his experiments and studies he is thought to have discovered hydrochloric acid, sulphuric acid, and nitric acid. He also discovered what is now called Aqua Regia, which is an acid that is…

Nitrogen (N₂) is a colorless, odorless, largely inert gas with a hexagonal structure that is essential to life on earth. This nonmetal is number seven on the periodic table; in its neutral state, it has seven protons, seven neutrons, seven electrons, and an average atomic mass of 14.0067 amu. The electron configuration of this element in ground state is 2-5. Its discovery, safety, availability, and uses are important in understanding this element and its significance. Nitrogenous compounds…

In the book Stuff Matters, Mark Miodownik delves into the intricacies of the materials that allow the modern world to exist and thrive. In chapter 8, Unbreakable, Miodownik discusses the significance and characteristics of various forms of carbon in a historical lens. Although derived from the same element, graphite, diamond, and graphene all have unique properties unlike any other materials. Miodownik begins by offering a relatable anecdote to his childhood art class in order to truly show the…

Examples and Solutions Example 1: Given Equation: MnO4- + S2-  Mn2+ + S0 Balance the equation by using the ion-electron method. Step 1 Oxidation: S2-  S0 Reduction: MnO4-  Mn2+ Divide into two half reactions. Identify the element that is being oxidized and the other being reduced. (Use the entire ion or molecule.) Step 2 Oxidation: S2-  S0 Reduction: MnO4-  Mn2+ Balance all the elements (other than oxygen and hydrogen). Step 3 Oxidation: S2-  S0 Reduction: 8H+ + MnO4- …

with hydrochloric acid. Cavendish applied his finding at a science convention when he applied a spark of hydrogen gas and created water. He is also the scientist that discovered that water is made up of Hydrogen and Oxygen. Finally, in 1783 Antoine Lavoisier is given credit for giving Hydrogen its…

2013). The physician’s popular theory captured the attention of King Louis XVI in the year 1784, leading the King to appoint doctors from the Royal Faculty of Medicine and representatives from the Royal Academy of Sciences such as “…the chemist Antoine Lavoisier – discoverer of oxygen and hydrogen; Dr.Joseph Guillotin – co-founder of the Academy of Medicine in Paris and the inventor of the guillotine; astronomer Jean Bailly – a senior member of the French Academy of Sciences who studied the…

Discuss the issues surrounding the ethics of human and/or animal research The broadening of people 's understanding of biology and psychology in the past centuries, has not resulted in a full comprehension of what animals feel or think, although the majority of findings in these scientific fields were based on animal models. Notwithstanding the fact that there is a lack of information on the subject of similarity of the mental experiences of animals used in research, excuses for neglect and…