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- https://chem.libretexts.org/Courses/Westminster_College/CHE_180_-_Inorganic_Chemistry/13%3A_Chapter_13_-_s-Block_Elements/13.9%3A_Group_2/Chemistry_of_Magnesium_(Z%3D12)Magnesium is a group two element and is the eighth most common element in the earth's crust. Magnesium is light, silvery-white, and tough. Like aluminum, it forms a thin layer around itself to help p...Magnesium is a group two element and is the eighth most common element in the earth's crust. Magnesium is light, silvery-white, and tough. Like aluminum, it forms a thin layer around itself to help prevent itself from rusting when exposed to air. Fine particles of magnesium can also catch on fire when exposed to air.
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Supplemental_Modules_and_Websites_(Inorganic_Chemistry)/Descriptive_Chemistry/Elements_Organized_by_Block/2_p-Block_Elements/Group_16%3A_The_Oxygen_Family_(The_Chalcogens)/Z008_Chemistry_of_Oxygen_(Z8)Oxygen is an element that is widely known by the general public because of the large role it plays in sustaining life. Without oxygen, animals would be unable to breathe and would consequently die. Ox...Oxygen is an element that is widely known by the general public because of the large role it plays in sustaining life. Without oxygen, animals would be unable to breathe and would consequently die. Oxygen is not only important to supporting life, but also plays an important role in many other chemical reactions. Oxygen is the most common element in the earth's crust and makes up about 20% of the air we breathe.
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Supplemental_Modules_and_Websites_(Inorganic_Chemistry)/Descriptive_Chemistry/Elements_Organized_by_Block/2_p-Block_Elements/Group_16%3A_The_Oxygen_Family_(The_Chalcogens)/1Group_16%3A_General_Properties_and_ReactionsThe oxygen family, also called the chalcogens, consists of the elements found in Group 16 of the periodic table and is considered among the main group elements. It consists of the elements oxygen, sul...The oxygen family, also called the chalcogens, consists of the elements found in Group 16 of the periodic table and is considered among the main group elements. It consists of the elements oxygen, sulfur, selenium, tellurium and polonium. These can be found in nature in both free and combined states. The group 16 elements are intimately related to life.
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Supplemental_Modules_and_Websites_(Inorganic_Chemistry)/Descriptive_Chemistry/Elements_Organized_by_Block/1_s-Block_Elements/Group__2_Elements%3A_The_Alkaline_Earth_Metals/Z012_Chemistry_of_Magnesium_(Z12)Magnesium is a group two element and is the eighth most common element in the earth's crust. Magnesium is light, silvery-white, and tough. Like aluminum, it forms a thin layer around itself to help p...Magnesium is a group two element and is the eighth most common element in the earth's crust. Magnesium is light, silvery-white, and tough. Like aluminum, it forms a thin layer around itself to help prevent itself from rusting when exposed to air. Fine particles of magnesium can also catch on fire when exposed to air.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/02%3A_Matter_and_Change/2.11%3A_ElementsThis page discusses Sherlock Holmes, a fictional detective known for his insightful quotes, particularly the misattributed "elementary, my dear Watson." It explains what an element is, describing it a...This page discusses Sherlock Holmes, a fictional detective known for his insightful quotes, particularly the misattributed "elementary, my dear Watson." It explains what an element is, describing it as a basic form of matter with unique properties, totaling 118 known types—98 of which are natural. It mentions examples like oxygen, iron, and gold, emphasizing their varying values, with gold being highly valued.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/10%3A_The_Mole/10.07%3A_Conversions_Between_Moles_and_Gas_VolumeThis page explains how to calculate gas quantities in small tanks for chemical reactions, highlighting the conversion between moles and gas volume using the molar volume at STP (22.4 L per mol). It in...This page explains how to calculate gas quantities in small tanks for chemical reactions, highlighting the conversion between moles and gas volume using the molar volume at STP (22.4 L per mol). It includes examples for determining moles from volume, volume from moles, and calculating a gas's mass from its volume at STP. The page concludes with review questions to help reinforce the understanding of these conversions.
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Inorganic_Chemistry_(LibreTexts)/08%3A_Chemistry_of_the_Main_Group_Elements/8.11%3A_The_Oxygen_Family_(The_Chalcogens)/8.11.02%3A_Chemistry_of_Oxygen_(Z8)Oxygen is an element that is widely known by the general public because of the large role it plays in sustaining life. Without oxygen, animals would be unable to breathe and would consequently die. Ox...Oxygen is an element that is widely known by the general public because of the large role it plays in sustaining life. Without oxygen, animals would be unable to breathe and would consequently die. Oxygen is not only important to supporting life, but plays an important role in many other chemical reactions. Oxygen is the most common element in the earth's crust and makes up about 20% of the air we breathe.
- https://chem.libretexts.org/Ancillary_Materials/Laboratory_Experiments/Wet_Lab_Experiments/General_Chemistry_Labs/Online_Chemistry_Lab_Manual/Chem_10_Experiments/04%3A_The_Properties_of_Oxygen_Gas_(Experiment)Free elemental oxygen occurs naturally as a gas in the form of diatomic molecules. Oxygen exhibits many unique physical and chemical properties. In this lab, oxygen will be generated as a product of t...Free elemental oxygen occurs naturally as a gas in the form of diatomic molecules. Oxygen exhibits many unique physical and chemical properties. In this lab, oxygen will be generated as a product of the decomposition of hydrogen peroxide. A catalyst is used to speed up the rate of the decomposition reaction, which would otherwise be too slow to use as a source of oxygen. The catalyst does not get consumed by the reaction, and can be collected for re-use once the reaction is complete.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/10%3A_The_Mole/10.10%3A_Percent_CompositionThis page explains calculating the percent composition of a substance using its mass and chemical formula, with examples like peanut butter and dichlorineheptoxide. It highlights determining percent o...This page explains calculating the percent composition of a substance using its mass and chemical formula, with examples like peanut butter and dichlorineheptoxide. It highlights determining percent of components such as protein, fat, and sugar, and applications in identifying mass of specific elements in samples. Additionally, it briefly references stained glass conservation from a Science Friday video.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/12%3A_Stoichiometry/12.05%3A_Volume-Volume_StoichiometryThis page explains the use of propane grills and how to check propane levels with pressure gauges. It covers volume-volume stoichiometry based on Avogadro's hypothesis, showing that equal gas volumes ...This page explains the use of propane grills and how to check propane levels with pressure gauges. It covers volume-volume stoichiometry based on Avogadro's hypothesis, showing that equal gas volumes under identical conditions contain equal particle numbers. An example illustrates calculating the required oxygen volume for propane combustion and the resultant carbon dioxide volume, highlighting the importance of keeping pressure and temperature consistent in gas volume considerations.
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Inorganic_Chemistry_(LibreTexts)/08%3A_Chemistry_of_the_Main_Group_Elements/8.07%3A_Group_14/8.7.04%3A_Chemistry_of_Silicon_(Z14)Silicon, the second most abundant element on earth, is an essential part of the mineral world. Its stable tetrahedral configuration makes it incredibly versatile and is used in various way in our ever...Silicon, the second most abundant element on earth, is an essential part of the mineral world. Its stable tetrahedral configuration makes it incredibly versatile and is used in various way in our every day lives. Found in everything from spaceships to synthetic body parts, silicon can be found all around us, and sometimes even in us.
