Chemistry

The four factors that detriment the rate of a reaction are temperature, concentration, surface area, and catalyst. The products of combusted hydrocarbon are. Carbon dioxide water if there is a sufficient amount. The products of insufficient combustion are suits, carbon monoxide, unban hydrocarbons and water. The collision theory states that when reactant particles collide with enough energy they can turn into products. Successful collisions are when they react with enough energy. This energy is called activation energy. Combustion causes nausea, fatal fatigue, slow death, breathlessness. Why do you react to it? Why is a reactivity of an alkaline metal increase down the group the size of the atom and the weaker attraction to the nucleus? What 2 compounds cause? Ryan to rust, it is oxygen and water. Lithium or a metal plus water is lithium hydroxide or metal hydroxide plus remember, plus hydrogen. When we burnt, when we added sodium to water, it turned into a ball. It whizzed around the surface of the water and it gave out a gas called hydrogen. When we added potassium to water. It released a lilac flame and it whizzed and it was more reactive and it floated upon the surface. Lithium, Lithium fluid, when it was a little water, it floated on the top and it had effervescence. A catalyst works by lowering the activation energy, allowing reactor particles to successfully collide. Remember hydrogen peroxide? Copper carbonate powder turned from green to black when heated. The lime water turned cloudy due to the formation of carbon dioxide. By the way, this is a thermal decomposition of copper carbonate. Hydrated copper sulphate crystals. The blue crystals turned white when heated and there was condensation at the end of the test tube. This indicates the loss of water molecules, transforming the hydrated form into anhydrous copper sulfate. Metals as you go down the Group One in the.ic table. In reactivity this is because the the size of the atoms increase and there is a further distance from the Alton electron to its nucleus, which means it has a weaker attraction to the nucleus, which means it can be easily lost during a reaction such as. Potassium with water. The densitive of alkaline metals are low. The products dissolve in water to form an alkaline solution that is 12 to 14. Why does the concentration of the. Why does a concentration affects the rate of the reaction? There are more particles to collide with each other. Is answer to this question. Group 7 are called the halogens. They are fluorine, chlorine, bromide, iodine and atamine. The trends down group 7. They decrease in reactivity, they increase in ectomic radius, they increase in number of filled electron shells, they decrease in the power to attract electron to form negative ion. Increase in the melting and boiling point and the colour of the element darkens. All halogens are nonmetal so they don't conduct electricity, they are brittle and crumbly when solid, and they are poisonous and smelly. The halogens have 7 electrons in the outer shell, which means they only need to gain 1 electron. Halogens are diatomic, which means they exist as molecules with two atoms. Convincedly bonded together. Noble gases are Helium, Neon, Argon, crypton. Xenon and Radon. They are in Group 0. They do not need to gain any electrons and they are stable. The helium is used in balloons and airships. Radon is used to treat cancer by radiotherapy. Xenon is used in laser eye surgery. Argon is used in gas blankets. Krypton is used in glowing red. Advertising signs and neon is used in sunbeds. Neon is used in sunbeds. Noble gases all have full outer electron shells.