Classifying Mystery Solids Lab Report

Every individual is different in a specific way. Like people, substances have unique qualities, such as properties, which aid chemists to differentiate and identify the particular components the substances consists of. These particular qualities are identified as either physical or chemical properties. Physical properties are properties which do not require a chemical change of its composition in order for the substance to be classified. A few examples of physical properties include color, density, odor, boiling point, melting

After each of the solids were completely dry, each was placed into a MelTemp device. The temperature at which each solid began to melt and completed melting was recorded.

We were assigned mystery powder convertible which contained calcium carbonate, baking soda, and sucrose. We found out that the mystery powder had calcium carbonate because when it reacted with iodine it turned orange/brown. When calcium carbonate reacted with vinegar it had a fizzy-like reaction. It also reacted with hydrochloric acid and that caused it to bubble. When we tested the mystery powder it also turned orange/brown when we added iodine. Also when we added vinegar and it also fizzed like the calcium carbonate. Again when we added the hydrochloric acid it reacted exactly like calcium carbonate, lots of bubbles were made. We know that the calcium carbonate was in the mystery powder because it had similar reactions.

It is clear to tell when an object is either a  solid or a liquid- or perhaps even both? To begin with, discussing the essential knowledge of solids, liquids and even gases, clarifies any unknown concepts of these three states.

3. Examine the luster of the minerals in Figure 1.2 (p. 4 lab book). Place the letter A, B, C, D, or E in

The color of food coloring is on the top of NaOCI, NaOCI is under the food coloring.

The purpose of this experiment was to classify unknown solids based on their type of chemical bonds by investigating their properties. By using data, Unknown 1 was classified as a metallic. This was because it appeared a shiny copper color, had a very high conductivity as a solid, had a high melting point, and was malleable. Unknown 2 was classified as a nonpolar covalent bond. This was because it had no conductivity as a solid and low conductivity in water.

Aim: To classify unknown substances according to their structure type and to observe how the structure of materials affects their uses.

One way matter can be classified is, what phase the matter is in. There are five phases matter can go through, solid, liquid, gas, plasma, and super critical point. Solid is when the molecules are all in an organized and compact pattern, except for ice, which had a honeycomb pattern making it have more space in between molecules. Liquid is when the molecules are semi close together, but they can move freely between each other. Gas is when the molecules are far apart from each other and will continue to expand from one another. Plasma is when the particles very spread out and have lots of energy that have been completely ionized. Super Critical point is when the gas and liquid state are both happening at the same time. Another way matter can be classified is, what phase change the matter is going through.

Term to Learn:States of Matter-the physical forms of matter, which include solid, liquid, and gas Solid-the state of matter in which the volume and shape of a substance are fixed Liquid-the state of matter that has a definite volume but not a definite shape Surface Tension-the force that acts on the surface of a liquid and that tends to minimize the area of the surface Viscosity-the resistance of a gas or liquid to flow Gas-a form of matter that does not have a definitive volume or shape Reading Check: 1,The particles in a crystalline solid arranged in repeating pattern of rows that forms orderly, three-dimensional arrangement 2,Viscosity is the resistance of a gas or liquid to flow Main Idea:Three States of Matter A.The three states of matter are gas, liquid and solid Particles of Matter A.The way of how particle interact with each other help determine the state of the matter Solids A.What would happen to the shape or size of a solid object like marble if you drop it Solids Have

States of matter are the distinct forms that different phases of matter take on. Historically, the distinction is made based on qualitative differences in bulk properties. Solid is the state in which matter maintains a fixed volume and shape; liquid is the state in which matter maintains a fixed volume but adapts to the shape of its container; and gas is the state in which matter expands to occupy whatever volume is available.

Crystalline Solid: A solid whose molecules are arranged in tight structural form, which then form a crystal lattice. 28. Unit Cell: The building blocks or repeating units in a crystal 29. Amorphous Solid: A solid that contains particles not in a regular pattern, or unorganized

Matter is defined as anything that occupies space and can be perceived by one or more senses; a physical body, a physical substance, or the universe as a whole. There are four distinct states of matter: solids, liquids, gases, and plasma. There are other states of matter such as Bose-Einstein condensates and neutron degenerate matter, but those states can only be found under extreme conditions.

A few examples are given below. Ahmed and Sadus (-- removed HTML --) (-- removed HTML --) 9 (-- removed HTML --) (-- removed HTML --) determined properties of fluids interacting via (-- removed HTML --) n (-- removed HTML --) -6 Lennard-Jones potentials with various n values. The complete solid-liquid equilibria for these systems were obtained and the influence of the interatomic repulsive forces on the melting temperatures was discussed. It could be noted that universality of melting curves for a wide range of inter-particle interactions [Yukawa, Weeks-Chandler-Andersen (WCA), Lennard-Jones and Lennard-Jones-based, and Buckingham] has been suggested by Khrapak (-- removed HTML --) et al. (-- removed HTML --) (-- removed HTML --) (-- removed HTML --) 10 (-- removed HTML --) (-- removed HTML --) from simple considerations. Interaction potentials and their effects on crystal nucleation and symmetry have been studied by Hsu and Rahman (-- removed HTML --) (-- removed HTML --) 11 (-- removed HTML --) (-- removed HTML --) in order to further clarify the effect of the interaction potential on the forming crystalline structure. By playing on the interaction potential, it was shown that the symmetry of the nucleated phase could be changed to bcc instead of fcc as seen in classical Lennard-Jones. Davidchack and Laird (-- removed HTML --) (--

Solidification is essentially an atom movement process in diffusion controlled solidification. Take single-phase alloy for example, the alloy is in a composition of C0. The phase diagram (Fig. 2.9) of the alloy has been perfected by assuming solid line and liquid line are straight. Thus, the partition coefficient k can be given (Porter, Easterling and Sherif, 2009),