q6key - 1. 2. Chem 171 Quiz 6 Version A (Metal/TernMix Key)...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chem 171 Quiz 6 Version A (Metal/TernMix Key) 1. For the following reaction: 3 Cu( s ) + 8 H + ( aq ) + 2 NO 3 ( aq ) 3 Cu 2+ ( aq ) + 2 NO( g ) + 4 H 2 O( l ) Identify the element that is being oxidized. Identify the element that is being reduced. Identify the reducing agent. Identify the oxidizing agent. What is the oxidation number of N in NO 3 . Cu is oxidized N is reduced Cu is the reducing agent NO 3 is the oxidizing agent. N = +5 in NO 3 2. Consider a mixture of 10 billion O 2 molecules and 10 billion H 2 molecules. In what way is this mixture similar to a sample containing 10 billion hydrogen peroxide (H 2 O 2 ) molecules? In what way is it different? The mixture is similar to the sample of hydrogen peroxide in that both contain 20 billion oxygen atoms and 20 billion hydrogen atoms since both O 2 and H 2 O 2 contain 2 oxygen atoms per molecule and both H 2 and H 2 O 2 contain 2 hydrogen atoms per molecule. They differ in that they contain different types of molecules: H 2 O 2 molecules in the hydrogen peroxide sample and H 2 and O 2 molecules in the mixture. In addition, the mixture contains 20 billion molecules (10 billion H
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

q6key - 1. 2. Chem 171 Quiz 6 Version A (Metal/TernMix Key)...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online