Module 5
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| show | Because the electrons are orbiting the protons and neutrons like a planet in a solar system.
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| show | The number of protons, electrons, and neutrons in an atom. Electrons.
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| show | Thirteen because there are always the same amount of protons as there are electons.
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| 5.4 Two different atoms have slightly different properties, but they belong to the same element. What is different about them: their numbers of protons, neutrons, or electrons? | show 🗑
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| show | Six protons, six electrons, and seven neutrons.
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| show | a. molecule b. element c. atom d. element e. molecule
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| 5.7 A student is told to study the chemicals nitrogen monoxide (NO) and nitrogen dioxide (NO2) and determine their differences. The student reports back that there are no differences between the molecules because they are made up of the same elements. | show 🗑
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| 5.7(continued) Is the student right or wrong? Why? | show 🗑
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| 5.8 Name each element and the number of atoms of that element in one molecule of acetic acid (C2H4O2), which is the active ingredient of vinegar. | show 🗑
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| 5.9 Identify the following changes as chemical or physical: a. putting milk on cereal b. baking bread c. boiling salt water | show 🗑
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| 5.10(continued) After one hour, the water level of the solution on the right increases, and the water level of the solution on the left decreases. Which solution started out with the higher salt concentration? | show 🗑
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| 5.11 One of the main chemical reactions used to run an automobile engine is the combustion of octane (C8H18): 2C8H18 + 25O2 = 16CO2 + 18H2O a. Write the chemical formulas of the reactants. b. Write the chemical formulas of the products. | show 🗑
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| 5.11(continued) c. How many molecules of C8H18 are used in this reaction? d. How many molecules of H2O are made in this reaction? | show 🗑
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| 5.12 A plant loses all of its chlorophyll. Will it be able to produce any glucose at all? | show 🗑
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| show | High temperatures.
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| show | C₂H₄.
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| show | Hydrolysis because it breaks down polysaccharides.
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| show | Solution D.
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| 5.17 Which solution is the most acidic? | show 🗑
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| 5.18 If plenty of glycerol is available, how many fat molecules can be made from 15 fatty acid molecules? | show 🗑
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| show | There are no enzymes to catalyze the hydrolysis reaction.
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| 5.20 Suppose you have just one strand of a portion of DNA. This strand has the following order of nucleotide bases: adenine, cytosine, thymine, and guanine. | show 🗑
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| 5.20(continued) If you could find the other strand of DNA that connects to this one to form the double helix, what would the order of nucleotide bases be? | show 🗑
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
LiseBrinkley
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