Concept explainers
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(a)
Interpretation: Whether the given statement is correct or not needs to be determined. Also, the incorrect statement needs to be corrected.
Concept Introduction: Every matter is made of chemicals; the importance of chemistry is that it's the study of everything. Chemistry is all about how something interacts to affect the structure, composition, as well as knowing properties of substances.
(a)
Answer to Problem 12A
The given statement is false.
Explanation of Solution
Substance is made up of the similar types of the atoms. A substance which is made entirely from single type of atom, called element.A sample of matter with both definite & constant composition and also distinct chemical properties called a pure substance. A mixture is the combination of similar or dissimilar components. Compound is a substance in which two or more than two different elements are chemically bounded together.
So, the given statement is false and the correct statement is most materials occur as mixtures of compounds.
(b)
Interpretation: Whether the given statement is correct or not needs to be determined. Also, the incorrect statement needs to be corrected.
Concept Introduction: Every matter is made of chemicals; the importance of chemistry is that it's the study of everything. Chemistry is all about how something interacts to affect the structure, composition, as well as knowing properties of substances.
(b)
Answer to Problem 12A
The given statement is false.
Explanation of Solution
Substance is made up of the similar types of the atoms. A substance which is made entirely from single type of atom, called element.A sample of matter with both definite & constant composition and also distinct chemical properties called a pure substance. A mixture is the combination of similar or dissimilar components. Compound is a substance in which two or more than two different elements are chemically bounded together.
So, the given statement is false and the correct statement is compound always contains the same relative number of atoms of its various elements.
(c)
Interpretation: Whether the given statement is correct or not needs to be determined. Also, the incorrect statement needs to be corrected.
Concept Introduction: Every matter is made of chemicals; the importance of chemistry is that it's the study of everything. Chemistry is all about how something interacts to affect the structure, composition, as well as knowing properties of substances.
(c)
Answer to Problem 12A
The given statement is false.
Explanation of Solution
Substance is made up of the similar types of the atoms. A substance which is made entirely from single type of atom, called element.A sample of matter with both definite & constant composition and also distinct chemical properties called a pure substance. Atoms combine and act as a unit, called molecules. A compound is a molecule that has at least
So, the given statement is false and the correct statement is molecules are made up of atoms.
Chapter 3 Solutions
World of Chemistry, 3rd edition
- 2. Name the following hydrocarbons. (9 marks) a) HHHHHHHH H-C-C- H-O-S b) HCEC-CH3 H H H H H d) c) H C=C- H H H e) CH3 CH3 CH2CH=CH-CH=CHCH3 HHHH H-C-C-C-C-H H HH H f) large CH2CH3 pola H3C section lovels tower, able ocart firs g) Tower H3C-CH2 then in H3C-CH-CH-CH3 enblbano bne noitsidab Copyright © 2008. Durham Continuing Education CH3arrow_forwardName the molecules & Identify any chiral center CH3CH2CH2CHCH₂CH₂CH₂CH₂ OH CH₂CHCH2CH3 Br CH3 CH3CHCH2CHCH2CH3 CH3arrow_forwardCurved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electrons-pushing arrows for the following reaction or mechanistic step(s).arrow_forward
- Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electrons-pushing arrows for the following reaction or mechanistic step(s).arrow_forwardWhat is the IUPAC name of the following compound? CH₂CH₂ H CI H₂CH₂C H CH₂ Selected Answer: O (35,4R)-4 chloro-3-ethylpentane Correctarrow_forwardCurved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electrons-pushing arrows for the following reaction or mechanistic step(s).arrow_forward
- Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. I I I H Select to Add Arrows HCI, CH3CH2OHarrow_forwardCurved arrows are used to illustrate the flow of electrons. Use the reaction conditions provided and the follow the arrows to draw the intermediate and product in this reaction or mechanistic step(s).arrow_forwardCurved arrows are used to illustrate the flow of electrons. Use the reaction conditions provided and follow the curved arrows to draw the intermediates and product of the following reaction or mechanistic step(s).arrow_forward
- Curved arrows are used to illustrate the flow of electrons. Use the reaction conditions provided and follow the arrows to draw the intermediate and the product in this reaction or mechanistic step(s).arrow_forwardLook at the following pairs of structures carefully to identify them as representing a) completely different compounds, b) compounds that are structural isomers of each other, c) compounds that are geometric isomers of each other, d) conformers of the same compound (part of structure rotated around a single bond) or e) the same structure.arrow_forwardGiven 10.0 g of NaOH, what volume of a 0.100 M solution of H2SO4 would be required to exactly react all the NaOH?arrow_forward
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