(a)
Interpretation:
True or false.
Ethylene contains one carbon-carbon double bond, and polyethylene contains many carbon-carbon double bonds.
Concept Introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.
(b)
Interpretation:
True or false.
All c-c bond angles in both LDPE and HDPE are approximately 1200.
Concept Introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form polymers is known as polymerization. Below are the two types of polymers:
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.
(c)
Interpretation:
True or false.
Low-density polyethylene is a highly branched polymer.
Concept Introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form polymers is known as polymerization. Below are the two types of polymers:
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.
(d)
Interpretation:
True or false.
High density polyethylene consists of carbon chains with little branching.
Concept Introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form polymers is known as polymerization. Below are the two types of polymers:
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.
(e)
Interpretation:
True or false.
The density of polyethylene polymers is directly related to the degree of chain branching, the lower the density of the polymer.
Concept Introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form polymers is known as polymerization. Below are the two types of polymers:
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.
(f)
Interpretation:
True or false.
PS and PVC are currently recycled.
Concept introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form polymers is known as polymerization. Below are the two types of polymers:
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.

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Chapter 12 Solutions
Introduction to General, Organic and Biochemistry
- Predict the major products of this organic reaction: 1. LDA (-78°C) ? 2. Br Some notes: • Draw only the major product, or products. You can draw them in any arrangement you like. . • Be sure to use wedge and dash bonds where necessary, for example to distinguish between major products that are enantiomers. • If there are no products, just check the box under the drawing area. No reaction. Click and drag to start drawing a structure. Xarrow_forwardPlease draw the structuresarrow_forwardDraw the missing intermediates 1 and 2, plus the final product 3, of this synthesis: 0 1. Eto 1. Eto- 1 2 2. MeBr 2. EtBr H3O+ A 3 You can draw the three structures in any arrangement you like. Explanation Check Click and drag to start drawing a structure.arrow_forward
- Draw the missing intermediate 1 and final product 2 of this synthesis: 1. MeO- H3O+ 1 2 2. PrBr Δ You can draw the two structures in any arrangement you like. Click and drag to start drawing a structure.arrow_forwardWhat is the differences between: Glyceride and phosphoglyceride Wax and Fat Soap and Fatty acid HDL and LDL cholesterol Phospho lipids and sphingosine What are the types of lipids? What are the main lipid components of membrane structures? How could lipids play important rules as signaling molecules and building units? The structure variety of lipids makes them to play significant rules in our body, conclude breifly on this statement.arrow_forwardWhat is the differences between DNA and RNA for the following: - structure - function - type What is the meaning of: - replication - transcription - translation show the base pair connection(hydrogen bond) in DNA and RNAarrow_forward
- What is the IP for a amino acid- give an example what are the types of amino acids What are the structures of proteins The N-Terminal analysis by the Edman method shows saralasin contains sarcosine at the N-terminus. Partial hydrolysis of saralasin with dilute hydrochloric acid yields the following fragments: Try-Val-His Sar-Arg-Val His-Pro-Ala Val- Tyr- Val Arg-Val-Tyr What is the structure of saralasin?arrow_forwardWhat is the IP for a amino acid- give an example what are the types of amino acids What are the structures of proteins The N-Terminal analysis by the Edman method shows saralasin contains sarcosine at the N-terminus. Partial hydrolysis of saralasin with dilute hydrochloric acid yields the following fragments: Try-Val-His Sar-Arg-Val His-Pro-Ala Val- Tyr- Val Arg-Val-Tyr What is the structure of saralasin?arrow_forward> aw the missing intermediates 1 and 2, plus the final product 3, of this synthesis: 1. Eto 1. EtO¯ H3O+ 1 2 2. PrBr 2. PrBr Δ You can draw the three structures in any arrangement you like. 3 Click and drag to start drawing a structure. Explanation Check 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacarrow_forward
- There are various factors that affect an equilibrium. Give 3 of these factors and explain using examples andequations how an equilibrium is affected by these factors. Please remember that this is a communication question so that you are communicating your understanding of the factors that affect and equilibrium.arrow_forwardEEZE LETCHUP ID Draw the most likely conjugate base resulting from this acid-base reaction. Include all lone pairs. Ignore inorganic byproducts. Drawing く NaOCH2CH3 :0: :0: 狗arrow_forwardAnswerarrow_forward
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