Prove if the material in cup 6 is a metal, metalloid, or nonmetal, by using its appearance, color, state of matter, luster, conductivity, malleability, and how it reacts with HCL. Before beginning to test on the substance we observed its appearance, state of matter, luster, and color. The substance was very shiny, solid and hard, as well as silver. Then we put on safety goggles to start testing. The first test we conducted was the electricity test to see if the object was a good conductor of electricity. We turned on the electricity conductor that was hooked up to a battery and then placed the material on the plate. We observed the lit up lightbulb colors on the conductor in order to determine if it could or could not conduct electricity, the lit up colors were a bright red and dim green …show more content…
Added up the evidence all concluded the material was a metal. Metals tend to be shiny, malleable, ductile, and good at conducting heat and electricity, as well as having high densities and boiling points, metals are also bendy because the atoms are loose. Meanwhile nonmetals are brittle, hard and don’t conduct electricity and heat well if at all. Nonmetals have rigid localized bonds making the atoms stay in place. Metalloids are somewhat between the two, they tend to have a more delocalized bond though. Copper is a metal that is used to conduct electricity in everyday life, wrapping wires and helping electricity to travel to where it is needed. A nonmetal could be Neon which is a liquid radiation that is used to light up restaurant and other light-up signs. A Metalloid may be silicone which now-a-days is used in order to make sturdy buildings. The unknown sample in cup number 6 is a metal because it is a good conductor of electricity, lustrous, and can be bent and not completely broken. Also it did not break down when acid was added to it meaning it has more of a basic
An error that could have been present during the lab includes not letting the zinc react completely with the chloride ions by removing the penny too early from the solution. For instance, the percent error of this lab was 45.6%, which was determined by the subtraction of the theoretical percent of Cu 2.5% and the experimental percent of Cu 3.64% and dividing by the theoretical percent of Cu 2.5%. This experiment showed how reactants react with one another in a solution to drive a chemical reaction and the products that result from the
1. A) Show that the relation R over bit strings where (x, y) is in R if and only bit strings x and y length 16 that agree on their last 4 bits is an equivalence relation. Define the equivalence classes and the partition induced by R. Answer: A relation R is said to be an equivalence relation if and only if it has all the following three properties: • Reflexive • Symmetric and • Transitive
This disproved my hypothesis that Powerade would have the most electrolytes and proved that orange juice contains more and would be better for hydration. It answered my investigative question of which liquid would have the most electrolytes with orange juice coming in first place, Powerade in second place and tap water in last place. I would like to improve the experiment by adding in more variables such as more substances to test and testing at different temperatures to see if the temperature has an effect on the conductivity. I also feel that I would like to get more copper wire to change it after each trial as I think the oxidation of the copper wire caused my later readings to fluctuate and perhaps be inaccurate. I therefore conclude that orange juice proved to be the most conductive and that the oxidation o the copper wires caused some of the later readings to fluctuate but overall I feel that the results were accurate.
It's an anti-gravity metal.’” Plumwood was in a present day national park. She said that the setting was “..paperbark wetlands are especially stunning, as the water lilies weave white, pink, and blue patterns of dreamlike beauty over the shining thunderclouds
("The Element Lead”) When I am in room temperature I am solid, but when it gets really hot out, about 327.46°C, I start to melt. Then, I even start to boil at 1749°C. My friends say that I am soft, ductile, and
Exercise 1 1. Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). Using your results from Data Table 1 as a guide, how would you test this material for the presence of sodium bicarbonate? B BoldI ItalicsU Underline Bulleted list Numbered list Superscript Subscript33 Words
2. Which physical properties did you examine in this activity? The physical properties that we examined in this activity were state, colour, texture, clarity, shape, and hardness. We did this by examining each powder with a magnifying class once we placed it on the watch glass.
\section{Facility Static and Dynamic Control}\label{Calibr} The facility calibration is the transfer function between the oscillating gauge pressure $P_C(t)$ in the chamber (described in ~\autoref{Sub31}) and the liquid flow rate $q(t)$ in the distributing channel, i.e. the test section. Due to practical difficulties in measuring $q(t)$ within the thin channel, and being the flow laminar, this transfer function was derived analytically and validated numerically as reported in ~\autoref{Sub32} and ~\autoref{Sub33}. \subsection{Pressure Chamber Response}\label{Sub31} Fig.\ref{fig:2a} shows three example of pressure signals $P_C(t)$, measured in the pneumatic chamber.
For example, when Miodownik explains how metals were better for making tools compared to wood, bone, and flint, he explains that “they can be hammered into shape: they flow, they are malleable.” [1] Metal has many other physical properties that make them useful for tools as metal can be rehammered back into shape or melted to create into a different tool. Another example is with razors. Miodownik explains the process of blunting razors is due to the structure of metals in how the atoms are arranged in a crystalline shape and in a specific way. Razors blunt because though collisions between the metal blade and hair, the crystals rearrange shape because bonds may weaken or be destroyed between the atoms in the crystal which creates slight dents on the razors edge.
Chemists classify silver as a transition metal. And is also called a precious metal. It is mostly found in the earth 's crust. Silver is mostly used for jewelry or house supplies such as silverware. Humans have used silver for thousands of years.
Everyone Should Metal Detect Most people think that metal detecting is just a dumb boring hobby on the beach for retired bald people. Actually, it’s not necessarily boring at all. It is actually quite fun.
Year 11 Stage 1 biology Bird Beak Summative Practical SACE# 798905X Aim: The aim of this practical investigation is to simulate the idea of adaption and evolution in times of drought in both valley and mountainous areas, through four common utensils representing four different types of bird beaks. Common dietary foods consumed by birds were substituted for toothpicks and beans. Hypothesis: In the valley were the toothpicks are found, the tweezer beaked bird will be the most affective at collecting food. This is due to the toothpicks resembling that of worms.
The objective of this project was to find which solids acted as accommodating insulators for the given gases at increasing temperatures (500K, 1000K, 1500K, 2000K, 2500K). The experiment is a simulation of the given gasses traveling through a pipe, and the solids are the lining of the pipe. The pipe lining must be able to withstand the gasses moving through the pipe at the given temperatures for the reaction to be successful. The Fact Web Software allowed me to find the properties of each given gas and solid (Cp ranges, all phases, stable phases, and standard state transitions).
The glass rod was used instead of the metal spatula because the metal from the spatula could have reacted with the copper ions in place of the aluminum wire, which would have interfered with the calculations of the solid copper’s
It was theorized that the reddish hue came from copper oxide, Cu2O, which forms easily in the air.1 Copper and its alloys have been used for thousand of years. It had been mined in the Romans era2 and the production of copper metal