Chemistry in Context
Chemistry in Context
8th Edition
ISBN: 9780073522975
Author: American Chemical Society
Publisher: McGraw-Hill Education
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Chapter 9, Problem 22Q

(a)

Interpretation Introduction

Interpretation:

The blowing agent has to be defined.

Concept Introduction:

Blowing agents are used in production of porous polymers. Blowing agents are added to reaction which decomposes in suitable temperature with evolution of gas that helps to drive the reaction which produces the porous polymer.

(b)

Interpretation Introduction

Interpretation:

The CO2 replaces some blowing compounds in process which is environmentally friendly. The reason behind this has to be explained.

Concept Introduction:

Blowing agents are used in production of porous polymers. Blowing agents are added to reaction which decomposes in suitable temperature with evolution of gas that helps to drive the reaction which produces the porous polymer.

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Provide the unknown for the given data.
Electron Arrangement A. Fill in the following chart relating to levels, sublevels and orbitals. Levels (n) 1 Sublevels # of Orbitals per sublevel 2 3 4 # of Electrons per sublevel Total Electrons per level Complete: B. Answer the following questions related to levels, sublevels, orbitals and electrons. 1. How many sublevels are in energy level 2? 2. How many orbitals are in a 4f sublevel? 3. How many electrons can level 3 hold? 4. How many orbitals are in level 4? 5. How many electrons can sublevel 2p hold? 11
Provide the unknown for the given details.

Chapter 9 Solutions

Chemistry in Context

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