Number 2 please Oveluncompounds, and use various methods to visually represenl lnem.1. a) Atoms, ions, and molecules are the three types of particles that make up matter. Howare they similar? How are they different? Share at least 3 similarities and/or differences inyour response. Point form is acceptable.b) Give one example (name and formula) of each type of particle discussed in part a).2. Nitrogen has two naturally occurring isotopes: nitrogen-14 and nitrogen-15. The averageatomic mass of nitrogen is 14.0064 µ, which isotope is in the largest abundance? Explainyour reasoning.3. Describe three differences between the bonding in ionic and molecular substances. Pointform is acceptable.Copyright © 2020 The Ontario Educational Communications Authority. All rights reserved.1

Given Isotopes of Nitrogen Nitrogen-14 Nitrogen-15 Average atomic mass of Nitrogen = 14.0064…

Answered: 2. Nitrogen has two naturally occurring…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter1: The Nature Of Chemistry

Section: Chapter Questions

Problem 43QRT

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a Which of the following substances would you expect to be elements and which would you expect to be compounds? 1 aluminum sulfate; 2 osmium; 3 radon; 4 lithium carbonate; 5 dimethylhydrazine. b On what general rule do you base your answers to part a? Can you name any exceptions to this general rule for compounds?
Sketch a magnified view (showing atoms and/or molecules) of each of the following, and explain why the specified type of mixture is a heterogeneous mixture of two different compounds. a homogeneous mixture of an element and a compound.
What is acompound? What are compounds composed of? What is true about the composition of a compound, no matter where we happen to find the compound?
Calculate the average density of a single Al-27 atom by assuming that it is a sphere with a radius of 0.143 nm. The masses of a proton, electron, and neutron are 1.67261024g,9.10941028g, and 1.67491024g, respectively. The volume of a sphere is 4r3/3, where r is its radius. Express the answer in grams per cubic centimeter. The density of aluminum is found experimentally to be 2.70 g/cm3. What does that suggest about the packing of aluminum atoms in the metal?
Most substances are composed of _________ rather than elemental substances.
In a reproduction of the Millikan oil-drop experiment, a student obtains the following values for the charges on nine different oil droplets. (a) Based on these data alone, what is your best estimate of the number of electrons on each of the above droplets? (Hint: Begin by considering differences in charges between adjacent data points, and see into what groups these are categorized.) (b) Based on these data alone, what is your best estimate of the charge on the electron? (c) Is it conceivable that the actual charge is half the charge you calculated in (b)? What evidence would help you decide one way or the other?
In 1886 Eugene Goldstein observed positively charged particles moving in the opposite direction to electrons in a cathode ray tube (illustrated below). From their mass, he concluded that these particles were formed from residual gas in the tube. For example, if the cathode ray tube contained helium, the canal rays consisted of He+ ions. Describe a process that could lead to these ions. Canal rays. In 1886, Eugene Goldstein detected a stream of particles traveling in the direction opposite to that of the negatively charged cathode rays (electrons). He called this stream of positive particles "canal rays:"
Since 1800, almost 200 sincere but erroneous reports ofthe discovery of new chemical elements have been made.Why have mistaken reports of new elements been sonumerous? Why is it relatively easy to prove that a material is not a chemical element, but difficult to prove absolutely that a material is an element?
Compounds are composed two or more elements chemically combined while mixture are composed of substances where th components can be separnted. In connection with this, where do you compare your family, to a compound or a mixture? Why?
Which of the following are elements, which aremolecules but not compounds, which are compoundsbut not molecules, and which are both compounds andmolecules? (a) SO2, (b) S8, (c) Cs, (d) N2O5, (e) O,(f) O2, (g) O3, (h) CH4, (i) KBr, (j) S, (k) P4, (l) LiF.
Based on the following word descriptions, write the formula for each of the indicated substances.a. a compound whose molecules each contain six carbon atoms and six hydrogen atomsb. an aluminum compound in which there are three chlorine atoms for each aluminum atomc. a compound in which there are two sodium atoms for every sulfur atom d. a compound whose molecules each contain two nitrogen atoms and our oxygen atomse. a compound in which there is an equal number of sodium, hydrogen, and carbon atoms, but there are three times as many oxygen atoms as atoms of the other three elementsf. a compound that has equal numbers of potassium and iodide atoms
What is an element? A. A substance that can be separated by physical means B. A substance that cannot be broken into simpler substances C. A substance that is made using a chemical reaction D. A substance that is made from two different metals

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2. Nitrogen has two naturally occurring isotopes: nitrogen-14 and nitrogen-15. The average atomic mass of nitrogen is 14.0064 µ, which isotope is in the largest abundance? Explain your reasoning.