..ooo MetroPCS F 9:11 PM 50% blackboard learn fresnostate.edu CHEM 3A Spring 201

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..ooo MetroPCS F 9:11 PM 50% blackboard learn fresnostate.edu CHEM 3A Spring 2017 Chapter1Diagnostic Assessment Problem Express each of the following numbers using scientific notation. 826Ag 1800s Problem would you classify an orange as an element, a compound, heterogeneous mixture, or a homogeneous mixture? Explain. Problem Solve the following equation: t Problem 4: John Dalton (1766-1844) proposed that mass is conserved inchemical reactions because small indestructible particles called atoms change how they are bound together rather than being created, destroyed, or changed into different atoms. In the last 250 years Dalton's statement has been extensively tested. Would you consider his statement as an example of a scientific law or scientific theory? Explain briefly. CHEM 3A Spring 2017 Chapter 1 Diagnostic Assessment 't Problem S: Which of the following diagrams is good microscopic representation of solid Briefly explain why.

Explanation / Answer

Problem 1. 8.26 * 10^2g

7.0 * 10 ^-2L

1.0 * 10 ^3 s

Problem 2. Orange is a heterogeneous mixture as the composition of solid particles and liquids are not uniform throughout.

  

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