The most common oxide form of boron, B 2 O 3 or boron trioxide, is obtained by heating boric acid:. It rapidly reacts with oxygen in air to give a water-insoluble coating of Al 2 O 3. This oxide layer protects the metal beneath from further corrosion.
The reaction is shown below:. Group 14 is made up of both metals toward the bottom of the group , metalloids, and nonmetals at the top of the group. The oxides of the top of Group 4 elements are slightly acidic, and the acidity of the oxides decreases down the group.
The nitrogen family, Group 15 , is capable of reacting with oxygen in many different ways. Nitrogen and phosphorus are nonmetallic, arsenic and antimony are metalloids, and bismuth is metallic. The nitrogen oxides are given below:. All of these reactions are endothermic, requiring energy for oxygen to react directly with N 2 g. The oxides of nitrogen are acidic because they are nonmetal oxides. These reactions are shown below:. There are two forms of allotropes of phosphorus, white phosphorus and red phosphorus.
Red phosphorus is less reactive than white phosphorus. Reactions are shown below. Arsenic , antimony and bismuth react with oxygen when burned. There are two main types of oxides for each element:. The elements in Group 16 include oxygen, sulfur, selenium, tellurium, and polonium. Oxygen reacts with the elements in its own group to form various oxides, mostly in the form of AO 2 and AO 3.
Although oxygen is located in Group 16 , it is unique in its extreme electronegativity; this allows it to readily gain electrons and create hydrogen bonds. Because it is the smallest element in its group, it is capable of forming double bonds. It has no d-orbitals, and cannot expand its valence shell.
Oxygen is capable of reacting with itself, forming allotropes. One of oxygen's allotropes, ozone O 3 , is f ormed when oxygen g as, O 2 , is subjected to ultraviolet light. Sulfur dioxide, SO 2 , and sulfur trioxide, SO 3 , are the only common sulfur oxides. Sulfur's reaction with oxygen produces the oxides mentioned above as well as oxoacids. All are powerful oxidizing agents.
SO 2 is mainly used to make SO 3 , which reacts with water to produce sulfuric acid recall that nonmetals form acidic oxides. These sequential reactions are shown below:. Selenium and tellurium. The elements in Group 17 include fluorine, chlorine, bromine, and iodine. These elements are called halogens, from Greek roots translating to "salt formers.
Their extended octets allow them to bond with many oxygen atoms at a time. Fluorine :. The most electronegative element adopts the -1 oxidation state. Fluorine and oxygen form OF 2 , which is known as oxygen fluoride. The Group 18 noble gases include helium, neon, krypton, xenon, and radon. The ionization energy of xenon is low enough for the electronegative oxygen atom to capture electrons.
There are general trends in the reactions between main group elements and oxygen: Most nonmetals form the oxide with the highest possible oxidation state, with the halides excepted. Most metals form oxides with the oxygen in a -2 oxidation state. As a general rule, metal oxides are basic and nonmetal oxides are acidic. Basicity of an oxide increases with increasing ionic metallic character. Metal oxides, peroxides, and superoxides dissolve in water actually react with water to form basic solutions.
Oxygen also forms covalent oxides with non-metals, that react with water to form acidic solutions. Oxygen does not react with fluorine or noble gases. Exceptions to all of these trends are discussed below. Reactions with Group 1 Elements Oxygen reacts rapidly with Group 1 elements. Q: a Locate the stereogenic centers in the ball-and-stick model of ezetimibe trade name Zetia , a cho A: In the ball-and-stick model of ezetimibe, yellow balls represent halogen atom as they contain one co Calculate the volume in L of Q: What is the molarity of a 3.
Answer the following questions about potassium perchlorate, KCIO,. A: The entropy measures disorderness of reactants-products' molecules in closed systems. On reaction co Q: The molecule has: four atoms in a straight line a planar region containing two trigonal-planar car A: Since in the figure we can see that the molecule has 6 grey balls and 12 white balls And each grey b Q: Study guide answer is 4.
Q: What do the ions that gave a precipitate when mixed with AgNO3 have in common. Q: How much heat is required to convert g of ice at -5 degrees Celsius into water vapor at degr A: First find the amount of heat needed to raise the temperature of ice to 0oC from -5oC is, Find the HNO3 B. Q: Which of the following compounds will be most soluble in chloroform CHCl3? A: The enzymes which cannot catalyzed by themselves in a reaction, but they can help the other enzymes Q: Antacids works by the gastric pH to stomach acid.
A: Antacids are basically weak bases which are used to increase the gastric pH to normal Stomach pH. A: Oxidation of unsaturated fatty acid yields acetyl-CoA units. The oxidation of fatty acid produces a Q: Which of the following metal hydroxides will precipitate third as solid KOH is added if the metal io A: All the given ions are in same concentration.
All the hydroxides formed will dissociate as one mole Q: How many moles of gaseous boron trifluoride, BF3, are contained in a 4. Q: What was the initial temperature of a Q: A mixture of two gases with a total pressure of 2. What is the par Q: What is the expected standard cell potential for the following unbalanced reaction under basic condi A: In the given cell reaction, ferrous ion is oxidized to ferric ion. So that's why they cannot be converted individual atom, that literal fastened Rikers reaction.
So therefore, for proof for the hydrogen monk, you and also Trimalchio, they can exit yeah, at the wound and temperature without any problem without any reaction.
For the balanced chemical equation for the decomposition of hydrogen peroxid… Hydrogen gas and oxygen gas react to form water, and this reaction can be de… Reaction of 2. Most mixtures of hydrogen gas with oxygen gas are explosive. However, a mixt… Explain why, under normal conditions, the reaction of zinc with nitric acid … If a sample of pure hydrogen gas is ignited very carefully, the hydrogen bur… Problem The central idea of the collision model is that m….
View Full Video Already have an account? Stephen H. Problem 18 Easy Difficulty Hydrogen reacts explosively with oxygen. Answer The hydrogen atoms initiate a chain reaction that proceeds very rapidly. View Answer. Chemistry 10th Chapter 12 Chemical Kinetics. Discussion You must be signed in to discuss. Top Chemistry Educators Stephanie C. University of Central Florida.
Lizabeth T. Allea C. University of Maryland - University College. Morgan S. University of Kentucky. Chemistry Bootcamp Lectures
0コメント