Some factors that influence the speed of a chemical reaction are: (1) surface area of starting reactants; (2) concentration of reactants; (3) temperatures. The particle theory states that a solute dissolved takes place at the surface of the solvent and the larger the surface area of the particle the longer it will take to dissolve. The smaller the area the faster it will
According to the observations recorded, the metal ion Cesium is present in the “unknown samples”. Unknown sample number five produced a violet color when placed in the flame. Unknown sample number four produced an orange color when placed in the flame. Unknown sample number one produced a violet color when placed in the flame. This evidence supports the claim that the metal ion Cesium is present in the unknown samples according to table two, the Flame Spectra of the Alkali and Alkaline-Earth Elements.
A mixture of elements is what is known as compounds. Chemical reactions occur when particles react with each other and atoms in molecules get rearranged. Reactions happen either rapidly or slowly. The speed of a reaction is known as the rate of the reaction. This speed of chemical reaction depends on many factors such as temperature, particle size of reactants, and the intensity of reactants.
First of all reactivity is how fast electrons can be gotten rid of. Atomic radius is a major factor which illustrates reactivity based on the size of orbitals located in the atoms. Looking at the periodic table, I can tell that by going left and right and up and down, the atomic radius increases. Hence, calcium would have a higher atomic radius than magnesium which would also be higher than aluminum. Atomic radius affects the reactivity of elements because if an element has a small atomic radius, the electrons in the outermost orbital will be very close to the protons near the nucleus, making the protons have a tighter grip on the electrons ultimately making it both harder and slower to remove electrons.
hydrogen bomb or H-bomb, weapon inferring an extensive bit of its vitality from the atomic combination of hydrogen isotopes. In a nuclear bomb, uranium or plutonium is part into lighter components that together weigh not exactly the first iotas, the rest of the mass showing up as vitality. Not at all like this splitting bomb, the hydrogen bomb capacities by the combination, or joining together, of lighter components into heavier components. The deciding item again weighs not as much as its parts, the distinction afresh showing up as vitality. Since to a great degree high temperatures are required with a specific end goal to start combination responses, the hydrogen bomb is otherwise called an atomic bomb.
To prevent premature detonation the fuel had to be kept in separate sub critical masses which shall not support the fission reaction. The biggest challenge with designing the bomb was bringing together these subcritical masses to produce a supercritical mass which will provide more than required neutrons to sustain a successful fission reaction at the time of the detonation. The easiest way to bring the subcritical masses together was to develop a gun that shall fire one subcritical mass into the other. A small pellet of U-235 (subcritical mass 1) is removed from a sphere of U-235 (subcritical mass 2) that surrounds the neutron generator and placed at one end of a long tube in front of explosives, whilst the sphere will be placed at the opposite end. A barometric-pressure sensor will decide on an appropriate altitude for detonation that initiates a sequence of
Have you ever wondered what happens when a gun fires? I have been hunting for almost all my life and I have started to wonder about this. For my science fair project I 'm going to find the reaction of explosions. I also find this interesting because I want to make guns someday. I believe that understanding the Chemistry and Physics of explosions may help me to find the answer to my question.
The Crenshaw reading and the Black Feminist Statement talk about how women have suffered through the years fighting against violence, racial, sexual and class oppression. Women over the years have felt the politicization of millions of people and this is more powerful than a few voices. The way people think about women violence have changed. For example, rape once was seen as a very private and personal situation, but now this is seen as an issue that affect women as a class. The process of recognizing groups such as gay, lesbians and people of color have characterized the identity politics of these groups.
The greenhouse gases in the atmosphere absorb some of this energy, while the rest is emitted back into space, as a naturally occurring cycle that repeats daily which is needed to keep the earth 's surface warm. The green house gases that humans are adding to the atmosphere are like the steroids of the climate system. The problem is that humans are producing far too much greenhouse gases due to increased human activities that demand the use of energy, which has led to emissions and an increase in greenhouse gases. An increase in these greenhouse gases in the atmosphere means more heat is trapped in the atmosphere, and less is emitted into space, which essentially warms up the average temperature of the earth. A small increase in temperature creates major effects to our environment, which is seen in the idea of climate change.
These key words are Albedo, reflectivity, heat absorption, and global warming. Albedo is the amount of energy that is reflected back into space after the sun’s rays hit the earth. Reflectivity is related to Albedo because it is what keeps the earth cool. The opposite of reflectivity is heat
There are five things that affect the overall speed of the reaction and the number of collisions that can occur. Examples are concentration, temperature, and the amount of magnesium. We also know that Magnesium metal (in form of a ribbon or powder, also called active metal) reacts with acids rapidly than water liberating hydrogen gas. For instance, magnesium metal reacts with hydrochloric to form magnesium chloride salt and hydrogen gas, as claimed by
One of the theories of why Mercury has a large metallic core is an impact theory like the explanation of the formation of the Earth’s moon. This theory involves a large object like an asteroid striking Mercury and blowing away a great portion of the crust and mantel. This would mean that Mercury would have lost a great deal of its lower density elements due to many of them being removed by the impact. After the impact was over, much of the denser material should have remained to form the core. Over time Mercury collected some of the less dense material through its orbit and formed a thin mantel and crust.
but massive stars, die allot quicker because they burn massive amounts of nuclear fuel. Stars are giant nuclear reactors. In the center of stars, atoms are taken apart by allot of atomic collisions that change the atomic structure this then release allot of energy. This makes the stars’ super hot and bright. They may have a big mass but they use up allot of there energy quickly.
Nuclear fission and nuclear fusion are reactions that release energy because of the high-powered atomic bonds between the particles in the nucleus. To understand fission and fusion reactions, we must first understand the difference between them. In a fission reaction, a massive nucleus is split in the form of gamma rays, free neutrons and other subatomic particles. In a fusion reaction, two nuclei combine to form a new element that contains more protons in the nucleus (higher atomic number). Those are the basic definitions of the fusion and fission reactions.
So What Causes It? Global warming occurs when greenhouse gases, such as carbon dioxide, nitrous oxide, and methane trap heat inside the earth 's atmosphere. Think about what happens when you open your car door after the windows have been rolled up on a hot day.
