Bacteria in soils, water, and sediments perform many of the steps in the nitrogen cycle. Human involvement in the nitrogen cycle is important. Agricultural crops such as, beans, soy beans, peas, and alfalfa draw nitrogen from the air which increases the amount of nitrogen going back into the land. The best way I can describe this cycle is: Nitrogen is converted
When we increase the temperature of the Hydrochloric acid (HCl) the reaction will be quicker, more gas will be formed in a short amount of time. Because increasing the temperature, the particles move faster the ions have more kinetic energy, causing more collisions. Which will increase the reaction. As the temperature decrease the reaction rate will decrease because the particles have less thermal energy, will travel slower, less collision with other particles as a result of this the reaction rate will be lower. Similarly when the Calcium Carbonate (CaCO3) is broken down into powder the rate of reaction will increase.
The different of the chance will form a strong ionic bond between each other. For the non-metallic elements, they will share their electron valence with oxygen to form a stable octet state. However, the covalent bond was not as strong as ionic bond. Along the period 3, from the left the trend in structure is from the metallic oxides containing giant structures of ions, a giant covalent oxide (silicon dioxide) in the middle and molecular oxides on the right. Besides that, along the period 3 from left to right, there is increasing of acidity and decreasing of basicity, decreasing of metallic character, and decreasing of electronegativity difference.
The main source of nitrogen is in the air. The plants combine the nitrogen and make compounds like protein, and nuclear acid. Then the nitrogen flows through the ecosystem threw the producers, to the composers, to the
In chemistry, if you want to refer to a certain isotope you must write it as such: AXZ. X represents the chemical symbol of the element, Z represents the atomic number, and A represents the mass number which is the number of protons and neutrons combined. For example if one were to refer to a hydrogen isotope, they would write it as 1H1 (ordinary hydrogen), 2H1 (deuterium-hydrogen isotope with one neutron), or 3H1 (tritium-isotope with two neutrons). Light elements usually have an equal amount of neutrons and protons; heavy elements need more neutrons than protons in order to stick together. Atoms with too many neutrons, or not enough, can exist for a while, but they will be unstable.
Photosynthesis and Cellular Respiration Abstract In order for plants to live, they must have an energy source. This energy source is achieved through two metabolic processes known as cellular respiration and photosynthesis. These two reactions can be affected by a series of environmental factors and in this lab pH levels are being experimented on in order to see the effects of pH on oxygen production in photosynthesis and oxygen consumption in cellular respiration. To conduct this experiment, an enclosed apparatus was used and a number of leaf disks were used to represent the reaction of photosynthesis and cellular respiration. Introduction All organisms and their individual cells need a source of energy and air supply in order to maintain life.
The most important property of a water molecule is that due to an even distribution of electrons, it is slightly charged on each end. This type of bonding occurs between two of the same element or elements close to each other in the periodic table. An hydrogen bond is the attractive force between the hydrogen attached to an electronegative atom of one molecule of a different molecule. A hydrogen bond is formed when a charged part of a molecule having polar covalent bonds forms an electrostatic( charge, as in positive attracted to negative) interaction with a substance of opposite charge. The forces due to polarity are cohesion and adhesion.
I predict that as I increase the length of the wire, the resistance will also increase therefore the length is directionally proportional to the resistance. So if I double the length of a wire the resistance will also double. I predict this because the longer the wire is, the more atoms there are and therefore the electrons will collide with more atoms creating greater resistance. So the more atoms will cause more opposition therefore increasing the resistance. I predict that the shortest piece of wire will have the least resistance and the longest piece of wire will have the greatest resistance.
In this experiment the atomic absorption spectrophotometer will be used to analyze the concentration of magnesium in soil samples from different parts of Guam. Soil is very important in agriculture. It is the critical component that gives plants its nutrients to flourish. Atomic absorption spectrophotometer helps identify soils which are contaminated or acidified. This analytical technique helps agriculturist ensure maximum crop production.
Some are moving very slowly and others are moving very fast. To react, particles must collide with enough energy and in the correction orientations for bonds to be broken. My prediction for this investigation is the higher the temperature, the faster the reaction. This is because the atoms will move faster and that will cause the particles to