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Chemistry 141 Exam 1 (1) Questions & 100% Verified Correct Answers with complete solutions (Latest update $7.99   Add to cart
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Chemistry 141 Exam 1 (1) Questions & 100% Verified Correct Answers with complete solutions (Latest update

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Chemistry 141 Exam 1 (1) Questions & 100% Verified Correct Answers with complete solutions (Latest update

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  • August 15, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • chemistry 141 exam 1 1

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  • Chemistry 141
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Chemistry 141 Exam 1
D=m/v - ANS-Density

Solids- definite volume and shape
Liquid- definite volume and indefinite shape
Gas- indefinite volume and shape - ANS-3 States of matter and their properties

Liquid-->Solid is freezing
Solid-->Liquid is melting
Liquid-->Gas is vaporization
Gas-->Liquid is condensation
Solid-->Gas is sublimation
Gas-->Solid is deposition - ANS-Changes of state

all digits known with certainty plus one uncertain digit
all nonzeros are significant
Zeros after decimal unless placeholders, in the middle of the number are significant -
ANS-Significant Figures

only drop at end of calculation
depends on the number of decimal places in the least accurate measurement
6.8+11.934=18.7 - ANS-Significant Figures when adding or subtracting

depends on the number in the least precise measurement used in calculation - ANS-Significant
figures when multiplying or dividing

K= C+273.15 - ANS-Celsius to Kelvin

F= 9/5C+32 - ANS-Celsius to Fahrenheit

C= 5/9(F-32) - ANS-Fahrenheit to Celsius

10^-1 - ANS-Deci

10^-2 - ANS-Centi

10^-3 - ANS-Milli

10^-6 - ANS-Micro

10^-9 - ANS-Nano

, 10^-12 - ANS-Pico

10^-15 - ANS-Femto

10^-18 - ANS-Atto

10^-21 - ANS-Zepto

10^-24 - ANS-Yocto

10^1 - ANS-Deca

10^2 - ANS-Hecto

10^3 - ANS-Kilo

10^6 - ANS-Mega

10^9 - ANS-Giga

10^12 - ANS-Terra

10^15 - ANS-Peta

10^18 - ANS-Exa

10^21 - ANS-Zetta

10^24 - ANS-Yotta

Positively charged ion - ANS-Cation

negatively charged ion - ANS-anion

JJ Thomson by a cathrode ray that deflected - ANS-Who discovered the existence of electrons
and how?

high energy electron - ANS-Beta particle

+2 charge, mass equals He nucleus - ANS-alpha particle

used to express the relative masses of atoms to subatomic particles
equal to 1/12 a carbon atom

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