1. Magnesium is an alkaline earth metal with an atomic number of 12 and an atomic mass of 24.305. It is part of the second group of elements on the periodic table located on the far left side of the periodic table. *CAUTION* Magnesium is a flammable metal! The equation for the reaction that is going to happen is:
Magnesium + Hydrochloric Acid —> Magnesium chloride + Hydrogen
Mg (s) + 2 HCl (aq) --> MgCl 2 (aq) + H 2 (g)
This reaction is an Oxidation-reduction. Magnesium has an ionic charge of +2 and loses the electrons as it reacts with the acid to become a positively charged Iron ion through the oxidation. At the same time hydrogen gains electrons to become a neutral molecule.
I think that Magnesium is going to have the fastest reaction
The chemical elements are divided into two broad groups, the metals and the non-metals. In this experiment, you will examine some members of the metal group and identify similarities and differences in their physical and chemical properties. Metals are the elements that are found in the left of the periodic table with high electrical and thermal conductivity. Metals lose electrons to create positive ion charges. Metals have a unique shine, are prone to forming, have a high tendency to form cations, and combine with oxygen to give mostly basic oxides.
Copper Transformations Prelab Questions Three metals ions are Magnesium, Iron, and Nickel. Iron is used in the sea with iron rich minerals, for substances. Iron was also used in the formation of earth.
This is because when the magnesium salt is heated, its electrons become excited, and jump to a higher energy level. They then fall back to their ground state, emitting energy in the form of ultraviolet radiation, which is not a part of the visible spectrum, and thus cannot be seen by the human eye. Therefore. a perceived color change of the flame is not expected. In actuality, when magnesium salt is put into the flame, it becomes a brilliant white color.
After a while, a brownish color substance started to form on the three iron nails. We predicted that the brown substance on the nails is copper because the reaction of copper(II) chloride with iron is a single displacement reaction, so copper would be produced. 0.48 grams of iron was used in the reaction because 2.73 grams subtracted by 2.25 grams is 0.48 grams. The 0.48 grams of iron had to be used in the reaction with copper(II) chloride in order to produce copper, according to the reaction equation: CuCl2+FeFeCl2+Cu. 0.52 grams of copper was produced after pouring out the copper(II) chloride solution and the three iron
The reaction between Hydrochloric Acid and Sodium Carbonate led to the formation of gaseous Carbon Dioxide, aqueous water, and aqueous solution of Sodium Chloride as a result of all compounds containing alkali metals solubility. Lastly, Copper Sulfate and Sodium Carbonate reaction produced an aqueous sodium sulfate solution and a solid precipitate of Copper (II) Sulfite because of all alkali metals and sulfates ability to be soluble and the rule that any compound containing CO₃ is insoluble. In the end, the hypothesis that if we react mystery chemicals with one another, we will be able to identify the reactants and products, create balanced equations, and observe properties because of our prior knowledge learned throughout the course of the unit and using the known chemical reaction was accepted by the data
Is dark blue color color going to grayish black . 2nd in commercial value is pyrolusite. This mineral is thought to have been deposited by ground water carrying manganese.
The question is, how does a physical or chemical change affect the mass of a substance within a closed system? To respond to this question, my group did a lab to determine whether or not the mass would change or not. Our lab was to have a plastic bag containing baking soda, then add a cup of vinegar and a block of clay to the mix. We made sure to weight every element separately and then add them up for our total mass of 31 grams before the reaction. During the reaction, as soon as the vinegar was poured in there was a gas produced, bubbles.
Determination of the molar mass of magnesium Aim To determine the molar mass of magnesium with the ideal gas equations and Dalton’s law about partial pressures. Materials and chemicals gas measuring tube 50.0cm3 graduated cylinder 1000.0 cm graduated cylinder 10.0cm3 cork with a hole copper wire thermometer barometer magnesium ribbon HCL 35% (concentrated) Background theory Dalton’s Law of Partial states that the total pressure of a gas is equal to the sum of pressure of each individual gas at a specific temperature. The combination of all the partial pressures of the gases that make up the atmosphere gives the total pressure of the atmosphere. The average pressure of the atmosphere is 101 kilopascal(KPa).
Moving one step forward, the remaining choices are Manganese, Aluminum, Lead, Zinc, Tin, Nickel, Cadmium, and Chromium. At this point, the density can be used to classify since a few of the choices have been removed. Approximately at 25 degrees Celsius, Manganese has a density of 7.44, Aluminum with 2.70, Lead is at 11.35, 7.13 for Zinc, 7.31 for Tin, 8.91 for Nickel, 8.65 for Cadmium, and 7.19 for Chromium, where all of the densities have a unit of g/cm3. Based on information from the experiment sheet, it is affirmed that the calculated density of the unknown metal should be accurate to about 0.1%, although eliminating options based on this would not be reasonable, as lab data is not necessarily consistent every time. On top of density, logic and reasoning can also be used.
Explain why the reaction between sodium sulphate and silver nitrate did not occur even though sodium sulphate is insoluble in the most part? The reaction did not occur because the solution was mixed with 0.1M of silver nitrate and 0.1M of silver nitrate is not strong enough for the reaction to occur. If silver nitrate contained more than 0.1 mole, the reaction would have occurred because silver sulphate is insoluble and is a solid. Why is it needed for barium nitrate and ammonium sulphate to dissolve into water separately first before mixing the two together?
(“Facts About Lead”) On the periodic table I am in column 14 and row 6. My atomic number is 82. When I stepped on the scale the other day my atomic weight was 207.2. My family is the Carbon group and I am classified as a metal.
The purpose of this lab was to determine the percent water in magnesium sulfate heptahydrate, or Epsom salt. The experimental percent water is determined to be 42.06% in both trials, making the average also 42.06%. To determine this percent water a heating and cooling procedure was used. First, the vials were cleaned of impurities using the lab oven and were not touched after this point.
While the magnesium metal is the most reactive, magnesium nitrate is the least reactive. Copper metal is the least reactive but copper nitrate is most
+ H2O (g) Reaction 4: when a sulphuric acid is added to the solution that contains copper (II) oxide, a double displacement reaction will occur. the copper (II) oxide will react with the sulphuric acid producing copper (II) sulfate and water. The copper and hydrogen gas replace each other. Balanced Chemical Equation: CuO (s) + H2SO4 (aq) —> CuSO4 (aq) + H2O (l) Reaction 5: when zinc is added to the copper (II) sulfate solution, a single displacement reaction will occur.
Introduction The goal of the experiment is to examine how the rate of reaction between Hydrochloric acid and Sodium thiosulphate is affected by altering the concentrations. The concentration of Sodium thiosulfate will be altered by adding deionised water and decreasing the amount of Sodium thiosulphate. Once the Sodium thiosulphate has been tested several times. The effect of concentration on the rate of reaction can be examined in this experiment.