Properties of Metals, Nonmetals and Metalloids

Property Metals Nonmetals Metalloids Luster Metals reflects light from their surface and can be polished for example in gold, silver and copper. Nonmetals does not reflect light. They are not lustrous. Malleability Metals can withstand hammering and can be shaped into thin sheets such as foils. Nonmetals are non-malleable. Metalloids are not malleable. Ductility Metals…

Effect of Salt Concentration on Osmosis in Potato Cells Lab Answers

INTRODUCTION The cell membrane surrounds the cell and is responsible for the regulation of substances within the cell. There are many processes in which substances can travel through the membrane, one being osmosis. Osmosis is a form of passive transport (no energy required) and is a type of diffusion in liquid substances. It is the…

Lab Report Explained: Length and Electrical Resistance of a Wire

 INTRODUCTION AND BACKGROUND THEORY When electrons travel through wires or other external circuits, they travel in a zigzag pattern that results in a collision between the electrons and the ions in the conductor, and this is known as resistance. The resistance of a wire causes difficulty for the flow of the electrical current of a…

Lab Report: Determine The Percentage Of Water In Hydrated Calcium nitrate

Introduction: Our group had done 3 data sets for the same experiment process, and had recorded 3 groups of data. The aim of experiments was to determine the percentage of water in hydrated Ca(NO3)2. We obtained the percentages through experimental procedures of reacting Ca(NO3)2 with Na2CO3 , filtrating and drying CaCO3. The chemical equation of…

Lab Techniques: Lab Answers

Abstract In this experiment, 1.41M sodium chloride aqueous solution was prepared and quantitatively transferred into a 250ml volumetric flask to further diluted to 0.141M. The transfer was inspected to be complete by attempting to precipitate with silver nitrate solution. Sand was successfully separated from 600ml water by vacuum filtration. The Pasteur pipet was calibrated to…