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1. What idea in the reader infer about why the changing tide pattern puzzled Mary Leakey's team? A. The team was not used to working near the ocean. B. The team had never seen a...
Why does word choice reveal bias? a. Loaded words carry emotional weight that shapes readers b. Simple and direct words show that a writer is being honest c. A writer's word cho...
Which phrase would most likely signal a definition clue? a. "such as" or "for instance" b. "that is" or "in other words" c. "more specifically" or "properly speaking" d. "unlike...
23. In your own words, what is a chemical property? 24. Draw a concept map of at least 4 chemical properties that describe matter.
Part 2: Explain what is wrong with the following problems. Formula: N2 Explanation: Correct Lewis Structure: Formula: CH4 Explanation: Correct Lewis Structure: Formula: O2 Expla...
Part 2: Explain what is wrong with the following problems: Formula: N2 Formula: CH4 Formula: O2 Explanation: Explanation: Explanation: Correct Lewis Structure: Correct Lewis Str...
Need more help? Ask a follow-up question e.g. Can you explain step 2 in more detail? Based on your observation of the specimen, what is a question you could write to start your ...
(1) Predict the molecular geometry, bond polarity and molecular polarity for iodine fluoride. (2) Predict the molecular geometry, bond polarity and molecular polarity for water....
Predict the molecular geometry, bond polarity, and molecular polarity for the following related molecules: (1) chloromethane (CH3Cl) (2) methylene chloride (CH2Cl2) (3) trichlor...
What is true about guaiacol's chemical structure? Select all that apply. It contains two oxygen atoms. It contains a ring shape. It is responsible for guaiacol's smoky flavor. I...
What is true about guaiacol's chemical structure? Select all that apply. Its carbon atoms are only connected to other carbon atoms. It contains a ring shape. It is responsible f...
In addition to being used to flavor food, guaiacol can also be used to create other flavorants. To create these other flavorants, scientists react guaiacol in different chemical...
Which statements correctly compare eugenol and guaiacol? Select all that apply. The chemical structure of eugenol is based on the chemical structure of guaiacol. Eugenol has a d...
Another common derivative of guaiacol is eugenol (YOO-jeh-nol). Like vanillin, eugenol has a chemical structure that is only slightly different from the chemical structure of gu...
As you can see in this model, eugenol contains a group of three carbon atoms and five hydrogen atoms that is not part of guaiacol's chemical structure. Because this group is pre...
In addition to its flavor, a flavorant's chemical structure also determines its odor threshold. The odor threshold of a flavorant is the smallest concentration of the flavorant ...
A flavorant's odor threshold can be used to estimate the strength of its flavor at a certain concentration. Generally, flavorants with lower odor thresholds have stronger, more ...
Imagine a flavorant whose odor threshold is 15 ppb in water. At which concentrations in water would a person likely be able to detect the flavorant? Select all that apply. 5 ppb...
Now, compare the odor thresholds of guaiacol, eugenol, and vanillin. Because these substances have slightly different chemical structures, they also have different odor threshol...
Complete the passage. strength flavor chemical structure odor threshold flavorant arrangement A substance that is used to change or enhance a food's flavor is called a ________....
Scientists often use odor thresholds to estimate the strength of a substance's flavor at a certain concentration. This helps to determine how much of a flavorant to use when fla...
Complete the passage. odor threshold | chemical structure | flavorant | strength | arrangement | flavor A substance that is used to change or enhance a food's flavor is called a...
What happens to the structure of enzymes at very high temperatures? Why does this cause chemical reactions to halt?
Making Ions Great work! We’ve finally determined a reliable way to make ions! Adding an electron to the neutral hydrogen model created an anion. How could a cation be created fr...
QUESTION 10 DOK 2 5 points Making Ions Based on testing with the atomic model for hydrogen, what is the relationship between the number of protons and the number of electrons in...
QUESTION 12 DOK 2 5 points Making Cations and Anions with Specific Charges How could a cation for beryllium with a net charge of +5 form? Use the simulation as needed to confirm...
Making Cations and Anions with Specific Charges How was each ion formed? Move each action to the resulting net charge. (Note: Carbon does not form all these charges in real life...
Pulling It All Together Analyze the table below, which includes the most common net charge of ions formed by three elements. Choose two of these elements and describe why they m...
Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure: [Cl=O]⁻ Is the proposed Lewis structure reasonable? O Yes. O No, it has the wrong number...
Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure: [C≡O]⁻ Is the proposed Lewis structure reasonable? - Yes. - No, it has the wrong number ...
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