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show | 10^-4, the solution is always equal to the negative exponent of the pH scale
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Assume that acid rain has lowered the pH of a particular lake to pH 4.0. What is the hydroxide ion concentration of this lake? | show 🗑
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As the pH lowers on the scale | show 🗑
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As the pH raises on the scale | show 🗑
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Which of the following statements is true about buffer solutions? Answer | show 🗑
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show | are used as a means of keeping pH at a nearly constant value in regards to acids and bases
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Which of the following solutions has the greatest concentration of protons, [H+]? | show 🗑
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What is the pH of a solution with a hydroxide ion, [OH-], concentration of 10-12 M? | show 🗑
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show | carboxyl
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One of the following people set up a closed system to mimic Earth's early atmosphere and discharged electrical sparks through it. A variety of organic compounds common in organisms were formed. Who did this? | show 🗑
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enantiomers | show 🗑
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show | carboxyl and amino
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What is the pH of a solution with a proton, [H+], concentration of 10-8 M? Answer | show 🗑
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Which of the following solutions has the greatest concentration of hydroxide ions, [OH-]? | show 🗑
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Testosterone and estradiol are male and female sex hormones, respectively, in many vertebrates. In what way(s) do these molecules differ from each other? | show 🗑
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show | vitalism
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At what temperature is water at its densest? | show 🗑
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What gives rise to the cohesiveness of water molecules? | show 🗑
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show | a hydrogen bond
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If the pH of a solution is increased from pH 5 to pH 7, it means that the | show 🗑
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Different atomic forms of an element contain the same number of protons but a different number of neutrons. What are these different atomic forms called? | show 🗑
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show | carbon, hydrogen, nitrogen, oxygen
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What is the difference between covalent bonds and ionic bonds? | show 🗑
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show | iodine
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The reactivity of an atom arises from | show 🗑
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show | one of the atoms sharing electrons is much more electronegative than the other atom.
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Prokaryotic and eukaryotic cells generally have which of the following features in common? | show 🗑
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Which of the following is reflective of the phrase "the whole is greater than the sum of its parts"? | show 🗑
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Which branch of biology is concerned with the naming and classifying of organisms? | show 🗑
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show | cell
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2. Nitrogen (N) is much more electronegative than hydrogen (H). Which of the following statements is correct about the atoms in ammonia (NH3)? | show 🗑
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4. Which of the following statements is false? | show 🗑
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show | ionic bond
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11. Which of the following statements concerning prokaryotic and eukaryotic cells is not correct? | show 🗑
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Prokaryotic and eukaryotic cells generally have which of the following features in common? | show 🗑
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