Two most abundant element on Earth’s crust has to be chosen from the given options. Concept Introduction: Element is a pure substance and it cannot be broken down into simpler pure substance by chemical means like chemical reaction , electric current , heat, or light. Over several centuries, the discovery of 118 known elements and its isolation have taken place. These 118 elements are the building blocks of all matter. Out of the 118 elements, eighty-eight elements are naturally occurring and the other 30 elements are laboratory synthesized by bombarding elements that naturally occur with small particles. Elements that are laboratory synthesized are radioactive in nature and they convert back into the original naturally occurring element by emission of radiation. All the elements that occur naturally are not evenly distributed on earth and universe. Radiations that are emitted from stars can be used to estimate the elemental composition of universe. This indicates that hydrogen and helium are mostly dominant. On Earth’s crust oxygen and silicon are the two elements that account for about 80 % of the atoms which makes the chemical world of humans.

Question

Predict the major products of the following organic reaction: + Δ A ? Some important notes: • Draw the major product, or products, of the reaction in the drawing area below. • If there aren't any products, because no reaction will take place, check the box below the drawing area instead. • Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are enantiomers. Explanation Check Click and drag to start drawing a structure. 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use Priva

Answer 1

Question

Chapter 1.7, Problem 4QQ

Interpretation Introduction

Interpretation:

Two most abundant element on Earth’s crust has to be chosen from the given options.

Concept Introduction:

Element is a pure substance and it cannot be broken down into simpler pure substance by chemical means like chemical reaction, electric current, heat, or light. Over several centuries, the discovery of 118 known elements and its isolation have taken place. These 118 elements are the building blocks of all matter. Out of the 118 elements, eighty-eight elements are naturally occurring and the other 30 elements are laboratory synthesized by bombarding elements that naturally occur with small particles.

Elements that are laboratory synthesized are radioactive in nature and they convert back into the original naturally occurring element by emission of radiation. All the elements that occur naturally are not evenly distributed on earth and universe.

Radiations that are emitted from stars can be used to estimate the elemental composition of universe. This indicates that hydrogen and helium are mostly dominant. On Earth’s crust oxygen and silicon are the two elements that account for about 80 % of the atoms which makes the chemical world of humans.

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Predict the major products of the following organic reaction: + Δ A ? Some important notes: • Draw the major product, or products, of the reaction in the drawing area below. • If there aren't any products, because no reaction will take place, check the box below the drawing area instead. • Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are enantiomers. Explanation Check Click and drag to start drawing a structure. 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use Priva

esc 2 Incorrect Feedback: Your answer is incorrect. Can the molecule on the right-hand side of this organic reaction be made in good yield from no more than two reactants, in one step, by moderately heating the reactants? ? A O • If your answer is yes, then draw the reactant or reactants in the drawing area below. You can draw the reactants in any arrangement you like. . If your answer is no, check the box under the drawing area instead. Check F1 ! @ X C Save For Later Submit Assignment 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility 80 et A ད 1 4 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 # $ 45 % A 6 87 & * 8 9 ) 0 + ||

Can the molecule on the right-hand side of this organic reaction be made in good yield from no more than two reactants, in one step, by moderately heating the reactants? ?A Δ O • If your answer is yes, then draw the reactant or reactants in the drawing area below. You can draw the reactants in any arrangement you like. • If your answer is no, check the box under the drawing area instead. Explanation Check Click and drag to start drawing a structure. 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibilit ku F11