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Exam 1

chapters 1 and 2

QuestionAnswer
The Olympic games shot put field even uses a 16 pound shot. Identify the correct solution map to convert from pounds to kilograms using prefix multipliers and the given conversions of 16oz=1 lb. For 453.6 g= 16oz. 16lb x 16oz/1lb x453.6/16oz x 1kg/10^3 g.
Bromine belongs to what group of the periodic table? halogens
Which of the following does not describe a physical property of chlorine? a)chlorine forms with sodium to form table salt. b)the color of chlorine gas is green c)the density of chlorine gas at stp is 3.17 g/l d) the freezing point of chlorine is -101 dc a) chlorine combines with sodium to form table salt.
a student weighed 3000. ug of sulfur in the lab. this is the same mass as? 3.000x10^6 ng
What are some facts about the temperature scales? 1. the boiling point of water on the fahreneit scale is 212 degrees. 2. the freezing point of water on the Celsius scale is 0 degrees. 3.all temps on the kelvin scale are positive numbers.
A piece of metal ore weighs 8.25 g. When a student places it into a graduated cylinder containing water, the liquid level rises from 21.25 ml to 26.47ml. What is the density of the ore? 1.58 g/ml
Methane and oxygen react to form carbon dioxide and water. What mass of water is formed if 3.2g of methane reacts with 12.8 g of oxygen to produce 8.8 g of co2? 7.2 grams
What are some facts about Dalton's atomic theory? 1. conservation of mass during a chemical reaction 2. the law of definite proportions 3.the law of multiple proportions
Which subatomic particle has the smalles mass? an electron!
What represents an isotope? 21[] and 25[] 25 21
an element has two naturally occurring isotopes. One has an abundance of 37.40 percent and an isotopic mass of 184.953 amu, and the other has an abundance of 62.60 percent and a mass of 186.956 amu. what is the atomic weight of the element? 186.2 amu
the nuclear decay process that involves the particle having the greatest mass is? Alpha
Which form of radiation does now result in transmutation to another element? Gamma
Created by: maeallyn93