Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Chapter 2, Problem 2CR
Explain why two atoms of hydrogen tend to combine into a molecule of hydrogen gas(H2).
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Chapter 2 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 2 -
1. Who do you think should be responsible for...Ch. 2 - Prob. 2QCCh. 2 - Describe the electrical charges and relative...Ch. 2 -
2. Explain why two atoms of hydrogen tend to...Ch. 2 -
3. Explain why polar and charged molecules tend...Ch. 2 - How is a covalent bond different from an ionic...Ch. 2 - Compare and contrast potential energy and kinetic...Ch. 2 - Distinguish between saturated and unsaturated...Ch. 2 - Describe the process known as dehydration...Ch. 2 - Explain why proteins come in an almost unlimited...
Ch. 2 -
9. Discuss the importance of enzymes in living...Ch. 2 -
10. Describe the role of ATP in energy transfer...Ch. 2 - If a molecule of starch is repeatedly hydrolyzed,...Ch. 2 - Which of these molecules would be described as...Ch. 2 -
3. _______bonds form between the oxygen and...Ch. 2 - 13C and 14C are ______ of carbon. a. isotopes b....Ch. 2 - Which of the following substances has the lowest...Ch. 2 - When sugar is dissolved in water, sugar is the...Ch. 2 - A monosaccharide is to a polysaccharide as an...Ch. 2 -
8. Which of these bonds is the easiest to...Ch. 2 -
9. The primary structure of a protein is...Ch. 2 -
10. DNA ultimately contains the instructions for...Ch. 2 - If one strand of DNA has the sequence...Ch. 2 - Which of the following is true regarding the...Ch. 2 -
13. Which of the following is true regarding...Ch. 2 - Synthesis of proteins requires the input of...Ch. 2 - Prob. 15TYCh. 2 - Prob. 1AWKCh. 2 - Prob. 2AWKCh. 2 - Many people use cholesterol-lowering drugs to...Ch. 2 - Prob. 4AWKCh. 2 -
5. Coca-Cola is a very acidic drink; its pH is...
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- Draw a “dot & cross” diagram to show the shape of a water molecule (H2O). Bond angles need to be shown. State the shape of a water molecule.arrow_forwardExplain why some elements are diatomic.arrow_forwardOxygen, whose atomic number is eight, has three stable isotopes: 16 O, 17 O, and 18 O. Explain what this means in terms of the number of protons and neutronsarrow_forward
- Explain why two identical atoms joined by a covalent bond cannot form a hydrogen bond.arrow_forwardThe 2-carbon alcohol called ethanol is most common because it's made from something else very common: sugar! (this is also why ethanol is the one alcohol that's not toxic, our bodies can metabolize it). Ethanol is mass-produced in factories on an industrial scale, and is commonly used as a fuel (or mixed as an additive into other fuels). The combustion reaction below shows that 6 molecules of oxygen is required to completely burn two molecules of ethanol. How many molecules of carbon dioxide are produced after burning ethanol? ethanol + oxygen carbon dioxide + water 20,H OH + 60, + 6H,0 4CO. 2(e)arrow_forwardUsing collision theory, indicate which of the following statements regarding physical nature of the reactants is true: a) physical nature of reactants The physical nature of reactants does not influence the rate of reaction because reactions happen only on the molecular level. Solids, liquids or gases all influence the rate of reaction the same because they are all in the physical state. Solid state reactants react faster if the particle sizes are larger because reactions occur at the boundary surface with direct contact. Gaseous-state reactions are faster than liquid-state or solid-state reactions because collisions between reactants are more frequent.arrow_forward
- In terms of electron sharing between atoms, compare nonpolarcovalent bonds, polar covalent bonds, and the formation of ions.arrow_forwardList three of the five ways in which a nuclear reaction differs from a chemical reaction.arrow_forwardConsider iron (Fe), hydrogen gas (H2), and ammonia (NH3).Which of them is or are atoms? Which of them is or are molecules? Which of them is or are compounds? Explain eachanswerarrow_forward
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