QUESTION 10 When sodium chloride dissolves in water, how do the water molecules orient around the ions? O A. Water molecules are randomly oriented around the ions. O B. The hydrogen atoms point toward both the sodium and the chloride. O C. The oxygen atoms point toward both the sodium and the chloride. O D. Around sodium the oxygen atoms point toward the sodium, and around chloride the hydrogen atoms point toward the chloride. QUESTION 11 Elements in group 17 (7A) are called O A. alkali metals O B. halogens O C. Noble gasses O D. alkaline earth metals QUESTION 12 A scientific law O A. is a brief statement that summarizes past observations and makes predictions? O B. is subject to change via legal action O C. contains an explanation of observations O D. cannot be modified

QUESTION 10 When sodium chloride dissolves in water, how do the water molecules orient around the ions? O A. Water molecules are randomly oriented around the ions. O B. The hydrogen atoms point toward both the sodium and the chloride. O C. The oxygen atoms point toward both the sodium and the chloride. O D. Around sodium the oxygen atoms point toward the sodium, and around chloride the hydrogen atoms point toward the chloride. QUESTION 11 Elements in group 17 (7A) are called O A. alkali metals O B. halogens O C. Noble gasses O D. alkaline earth metals QUESTION 12 A scientific law O A. is a brief statement that summarizes past observations and makes predictions? O B. is subject to change via legal action O C. contains an explanation of observations O D. cannot be modified

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

ne has expired. The timer will c Your answers are saved automatically. Remaining Time: 44 minutes, 23 seconds. * Question Completion Status: A Moving to another question will save this response. Question 19 In which choice is the species correctly matched with its name? O NO3: nitrite ion O NO2 : nitrogen oxide O NO3: nitrogen trioxide ion O NO3 : nitrogen trioxide O All choices are correct. A Moving to another question will save this response. MacBook Pr 20 esc FT F2 F3 F4 F5 @ # 3
Which of the statements concerning chemical bonds is FALSE? Select one: O a. The sharing of electrons between two nonmetal atoms results in a covalent bond. O b. The attraction between oppositely charged ions results in an ionic bond. O c. A polar covalent bond is a type of bond in which electrons are shared equally between two atoms. O d. A bond dipole is the separation of charge that results when atoms sharing electrons have different electronegativities. 구
1. One important electrolyte used in the body is often referred to as the sodium electrolyte. If it needs to be able to conduct electricity, which do you think the sodium electrolyte is? Explain your choice. Na or Na+
1. The mass percent of a solution prepared by dissolving 36.4 g of NaCl in 63.6 g of water is: 2. The name of the ion BrO3- is bromate. What would be the name of the acid formed with it?
Choose the choice that only contains negatively charged polyatomic ions. A. Permanganate, nitrate, sulfide Phosphate, chromate, ammonia C. Perchlorate, ammonium, peroxide Hydrogen sulfite, bicarbonate, chloride E. Sulfate, bisulfite, bicarbonate
8. Acids combine in a similar way as ionic compounds. Write the formula of the compound formed by combining the following ions. Use the ion cut outs to help as needed. F- SO 2- PO43- H* 161olrb muble
You are a forensic investigator. The data for a crime scene is in the following chart. Soluble in oil Conducts Melting point Soluble in water electricity when dissolved in water Crime scene Yes No Yes high powder Which statement bests constructs an argument to identify the crime scene powder as one of the following: KCI, C10H8, C6H&O6? OA. The crime scene powder is KCI, because it is the only ionic compound choice. Only Ionic compounds conduct electricity when dissolved in water. B. The crime scene powder is C10H8 or C6H8O6 because they are both Ionic compounds. They are soluble in water, have a high melting point, and conduct electricity. C. The crime scene powder is C10H8 or C6H8O6 because they are both Covalent compounds. They are soluble in water, have a high melting point, and conduct electricity. O D. The crime scene powder is C10H8, because it conducts electricity, has a high melting point, and is soluble in water.
1. Compare cations, anions, and polyatomic ions. What do they all have in common? How are they different? 2. How can the periodic table help to remember the charges on the simple ions of the representative elements? 3. Is there more than one chemical name that can be used for baking soda?
a. Use the periodic table to write the formula (including the charge) for the simple ion formed by the element with atomic number 20. b. Use the periodic table to write the formula (including the charge) for the simple ion formed by the element with atomic number 17. c. Use the periodic table to write the formula (including the charge) for the simple ion formed by the element with atomic number 35.
9. Which pair of atoms would form an ionic bond? a. bromine and oxygen b. chlorine and lithium c. carbon and nitrogen d. sodium and neon e. copper and chromium 15. Using only the periodic table, place the following atoms in order of increasing atomic radius: C, Ba, 0, Ca, and Ge. 21. What types of elements are bonded together to make an ionic compound? Give three examples of ionic compounds. Identify the types of elements that make up the compound in each example. 27. Describe how the physical state of a substance at room temperature depends on the strength of the intermolecular forces between the particles of the substance.
Model C Sodium fluoride is slowly added to a beaker of water, resulting in no observable change. A simplified version of this reaction is provided below using Lewis structures: HOH H-F + H-O- + F- F-- How would you characterize the matter in the beaker after the reaction has taken place? Element Compound Heterogenous mixture Homogenous mixture
Formulas: V == E = hc/A Constants: h=6.626x10-34 c=2.998x108 Question 14 λ = h my A chemical bond between Ac and F would be O ionic because it is between a metal and nonmetal O metallic because it is between 2 metals O covalent because it is between two metals O ionic because it is between 2 nonmetals E= -2.18 x 10-18 J (1/²) and why?