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FSU / Chemistry / CHM 1045 / In chemistry, what are alpha particles?

In chemistry, what are alpha particles?

In chemistry, what are alpha particles?

Description

School: Florida State University
Department: Chemistry
Course: General Chemistry I
Professor: Robert cameron
Term: Fall 2015
Tags: General Chemistry
Cost: 50
Name: Chemistry Notes Chapters 1-2
Description: This study guide covers what is going to be on our exam.
Uploaded: 09/20/2016
9 Pages 56 Views 3 Unlocks
Reviews


Chapter 1: Dimensional Analysis 1) Which is heavier 45.6lbs∨21.3kg?


In chemistry, what are alpha particles?



1kg=2.20 slb s

2) Compare density .

Density of gol d=19,300(kgm3 )

Density of unknown=2.21(gcm3 )

3) Fill∈the blanks∈thetable .

103

Deci

Centi

Milli

10-6

10-9


What charge did theoil droplets have?



Don't forget about the age old question of What field of social science does criminology belong to?

Chapter 2

1) Fill∈the appropriate element∨number for X .

14

a) 7X

b) Fe A56

200

c) 80X

2) Answer these historical questions.

a) What did JJ Thompson determine ?

b) How was acathode rayconstructed ?

c) What did Milikan do¿ the air insideof the container ? How did he doit? d) What charge did theoil droplets have? Don't forget about the age old question of What is tactic knowledge?

e) W h odiscovered t hat t h enucleus contain protons∧nuetrons ? How? f) What arealpha particles ?


What is the the molecular formula?



3) True∨ false . one˚ .

T or F Heis monoatomic ?

T or F H is monoatomic ?

4)

a) Name the compound .

AgCl

KOH

PCl5

N2O4

b) Writethe molecular formula

Sulfur hexafluoride

Nitrogen monoxide

Iron (III) hydroxide

Potassium Permanganate

We also discuss several other topics like What are the obligations of scientists?

Answer Guide

Chapter 1: Dimensional Analysis

1) Which is heavier 45.6 lbs∨21.3 kg?

1kg=2.20 slbs

21.3 kg(2.205lbs 

1kg )=46.9665lbs 

Three significant figures. 47.0 lbs

47.0 lbs>45.6 lbs

21.3 kgs>45.6lbs

2) Compare density .

Density of gold=19,300(kgm3 ) We also discuss several other topics like What drives the movement of most drugs across cell membranes?

Density of unknown=2.21(gcm3 )

3

19,300(kgm3 )(m Don't forget about the age old question of What is the barrier to the rotation of ethane?

(103g

102cm )

kg )=19.3 gcm3 

Density of gold(19.3 gcm3 )>Density og unknown(2.21 gcm3 ) 3)

Kilo

103

Deci

10-1

Centi

10-2

Milli

10-3

Micro

10-6

Nano

10-9

Chapter 2

1) Fill∈the appropriate element∨number for X .

14

a) 7N

b) Fe 2656

c) 80Hg 200 

2) Answer these historical questions.

a) What did JJ Thompson determine ?

Thompson determined electrons are negatively charged∧¿ Don't forget about the age old question of What is enculturation?

found the mass ¿ charge ratio of anelectron .

b) How was acathode rayconstructed ?

Abeam of electronswent through atubewhere they bounced off the screen . The screen gave off light when the elctrons made contact .When a potential charge was added ¿ the neck of the tubethe electronswere pulled∈the direction of the positive charge .

c) What did Milikan do¿ the air insideof the container ? How did he doit? Milikan ionized the air utilizing∧x−ray .

d) What charge did theoil droplets have?

Theoil droplets werenegatively charged .

e) W h odiscovered t hat t h enucleus contain protons∧nuetrons ? How? Rutherford

f) W h at are alp h a particles ?

Heliumnuclei He 24

3) True∨ false . one˚ .

T or F Heis monoatomic ?

Monoatomic means∈its naturalstate there is asingle atom.

T or F H is monoatomic ?

Hydrogen is diatomicmeaining∈itsnaturalstate thereis are two atoms bonded ¿ eachother . H2 

4)

a) Name the compound .

AgCl

Silver chloride

KOH

Potassium oxide

PCl5

Phosphorus Pentachloride

N2O4

Dinitrogen tetroxide

b) Writethe molecular formula

SF6

Sulfur hexafluoride

NO

Nitrogen monoxide

Fe(OH)3

Iron (III) hydroxide

KMnO4

Potassium Permanganate

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