(a)
Interpretation:
Hot tea has to be classified as a compound or an element.
Concept Introduction:
Pure substance: A single component that has a constant composition, irrespective of the
Example: Water, sugar etc.
A pure substance can be classified into an element and a compound.
Element: A pure substance, which cannot be broken down into smaller substances by a
Example: Hydrogen gas, Magnesium ribbon and copper wire etc.
Compound: A pure substance that is formed by combination of two or more elements by chemical process is called as a compound. Example: Sodium chloride is a compound because it is formed from elements sodium and chlorine.
(b)
Interpretation:
Beach sand has to be classified as an element or a compound.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
Carbon dioxide has to be classified as a compound or an element.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
Cement has to be classified as an element or a compound.
Concept Introduction:
Refer to part (a).
(e)
Interpretation:
Zinc has to be classified as an element or a compound.
Concept Introduction:
Refer to part (a).
(f)
Interpretation:
Vinegar has to be classified as an element or a compound.
Concept Introduction:
Refer to part (a).

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Chapter 3 Solutions
FOUNDATIONS OF COLLEGE CHEM +KNEWTONALTA
- The following equations represent the formation of compound MX. What is the AH for the electron affinity of X (g)? X₂ (g) → 2X (g) M (s) → M (g) M (g) M (g) + e- AH = 60 kJ/mol AH = 22 kJ/mol X (g) + e-X (g) M* (g) +X (g) → MX (s) AH = 118 kJ/mol AH = ? AH = -190 kJ/mol AH = -100 kJ/mol a) -80 kJ b) -30 kJ c) -20 kJ d) 20 kJ e) 156 kJarrow_forwardA covalent bond is the result of the a) b) c) d) e) overlap of two half-filled s orbitals overlap of a half-filled s orbital and a half-filled p orbital overlap of two half-filled p orbitals along their axes parallel overlap of two half-filled parallel p orbitals all of the abovearrow_forwardCan the target compound at right be efficiently synthesized in good yield from the unsubstituted benzene at left? starting material target If so, draw a synthesis below. If no synthesis using reagents ALEKS recognizes is possible, check the box under the drawing area. Be sure you follow the standard ALEKS rules for submitting syntheses. + More... Note for advanced students: you may assume that you are using a large excess of benzene as your starting material. C T Add/Remove step X ноarrow_forward
- Which one of the following atoms should have the largest electron affinity? a) b) c) d) 으으 e) 1s² 2s² 2p6 3s¹ 1s² 2s² 2p5 1s² 2s² 2p 3s² 3p² 1s² 2s 2p 3s² 3p6 4s2 3ds 1s² 2s² 2p6arrow_forwardAll of the following are allowed energy levels except _. a) 3f b) 1s c) 3d d) 5p e) 6sarrow_forwardA student wants to make the following product in good yield from a single transformation step, starting from benzene. Add any organic reagents the student is missing on the left-hand side of the arrow, and any addition reagents that are necessary above or below the arrow. If this product can't be made in good yield with a single transformation step, check the box below the drawing area. Note for advanced students: you may assume that an excess of benzene is used as part of the reaction conditions. : ☐ + I X This product can't be made in a single transformation step.arrow_forward
- Ppplllleeeaaasssseeee helllppp wiithhh thisss Organic chemistryyyyyy I talked like this because AI is very annoyingarrow_forwardName the family to which each organic compound belongs. The first answer has been filled in for you. compound CH₂ || CH3-C-NH2 0 ။ CH3-C-CH₂ CH=O–CH=CH, CH₂ HO CH2-CH2-CH-CH3 family amine Darrow_forward1b. Br LOHarrow_forward
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