Answer the following question given this paragraph: Pb(s) + 2H+(aq) + SO42(aq) PbSO4(s) + H2(g) Lead(II) sulfate is the white solid that forms on corroded battery terminals. Exercise Using the activity series, predict what happens in each situation. If a reaction occurs, write the net ionic equation. Q: What is the white solid that forms on corroded battery terminals? Choices: - ammonia sulfate - copper sulfate - straight sulfate - lead sulfate A:
lead sulfate
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Answer the following question given this paragraph: Leaves are the keys not only to plant life but to virtually all life on land. The primary role of leaves is to collect sunlight and make food by photosynthesis. Leaves vary in size, shape, and how they are arranged on stems. You can see examples of different types of leaves in Figure below . Q: Which is the process through which leaves collect sunlight and make food? Choices: - Greenhouse - compress - richness - photosynthesis A:
photosynthesis
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Answer the following question given this paragraph: Q: Eggs are produced in what organs and, upon fertilization, develop in what other organ? Choices: - fallopian tubes, ovaries - cervix, ovaries - uterus, vagina - ovaries, uterus A:
ovaries, uterus
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Answer the following question given this paragraph: As for methane and ammonia, the domain geometry for a molecule with four electron pairs is tetrahedral. In the water molecule, two of the electron pairs are lone pairs rather than bonding pairs. The molecular geometry of the water molecule is bent. The H-O-H bond angle is 104.5, which is smaller than the bond angle in NH 3 (see Figure below ). Q: The domain geometry for a molecule with four electron pairs is called what? Choices: - bent - trigonal planar - linear - tetrahedral A:
tetrahedral
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