Select all the properties that describe the substance below. Ca(OH)2 conducts when solid low melting point...
Select all the properties that describe the substance below.
Ca(OH)2
- conducts when solid
- low melting point
- dissolves in oil
- high melting point
- conducts when dissolved
- does not conduct
- dissolves in water
Homework Answers
Ca(OH)2 is an ionic solid
hence it is conductor only in molten state or in aqueous solution
it has high melting and boiling point due to electrostatic forces of interaction
it is soluble in water
hence correct option is high melting point , conducts when dissolved and dissolves in water
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Select all the properties that describe the substance below.
Ca(OH)2
conducts when solid
low melting point...
Which of the following statements correctly describe melting and melting point? Select all that apply. Check...
Which of the following statements correctly describe melting and melting point? Select all that apply. Check all that apply. The temperature of a solid rises steadily during the melting process. At the melting point of a substance the solid and liquid phases are in equilibrium Pressure changes have little effect on the melting point of a substance. During melting the kinetic energy of the particles increases dramatically
Can you help me? What type of solid matches these properties? Melting point 900 degree C...
Can
you help me?
What type of solid matches these properties? Melting point 900 degree C Does not conducts electricity as a solid, but does when melted Undergoes brittle fracture
Use the phase diagram of Substance X below to find the melting point of X when the pressure above the solid is 0.43...
Use the phase diagram of Substance X below to find the melting point of X when the pressure above the solid is 0.43 atm. solid pressure (atm) liquid gas temperature (K) Note: your answer must be within 12.5 °C of the exact answer to be graded correct. X 5 ?
Use the phase diagram of Substance X below to find the melting point of X when...
Use the phase diagram of Substance X below to find the melting point of X when the pressure above the solid is 0.68 atm. solid pressure (atm) liquid gas 200 400 temperature (K) Note: your answer must be within 20 °C of the exact answer to be graded correct. [x 0 ?
Question 3 3 pts All of the properties below are associated with calcium nitrate Ca(NO3)2 or...
Question 3 3 pts All of the properties below are associated with calcium nitrate Ca(NO3)2 or C6H12. Which one of these physical and chemical properties would be associated only with cyclohexane, C6H12? contains ionic bonds. produces ions when dissolved in water. insoluble in water. melts above 500°C. Question 4
9. Large intermolecular forces in a substance A) low vapor pressure B) high boiling point C)...
9. Large intermolecular forces in a substance A) low vapor pressure B) high boiling point C) high heats of fusion and vaporization O) high critical temperatures and pressures E) all of the above are manifested by 10. Of the following A) CBr4 is the most volatile. B) CCl4 C) CH4 D) CF4 E) C6H14 Refer to the phase diagram below to complete questions 11-13 1.5 P (atm) 1.0 0.5 0 100-1-20 30 40 50 6070 T C'C) 11. What is...
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Decide what kind of crystalline solid each element or compound in the table forms, and what kind of force holds the solid together. Then, rank the solids in order of decreasing melting point. That Is, select "1" next to the solid with the highest melting point, "2" next to the solid w highest melting point, and so on. CYou may need to use the scrollbar to see all the choices.) type of solid force holding the solid melting point o...
1. Which of the following describes the compound NiI2? Choose all answers that apply. The compound...
1. Which of the following describes the compound NiI2? Choose all answers that apply. The compound is ionic. The compound would conduct electricity if molten. The compound is molecular. If the compound dissolved in water it would be a strong electrolyte. The compound would be expected to have a relatively low melting point. 2. Which of the following describes the compound (NH4)2CO3? Choose all answers that apply. The compound would be expected to be a solid at room temperature and...
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Calculate the freezing point depression when 108.0 g of Ca(OH)2 is dissolved in 2,400 g of H2O.
Which of the following statements correctly describe melting and melting point? Select all that apply. Check all that apply. The temperature of a solid rises steadily during the melting process. At the melting point of a substance the solid and liquid phases are in equilibrium Pressure changes have little effect on the melting point of a substance. During melting the kinetic energy of the particles increases dramatically
Can
you help me?
What type of solid matches these properties? Melting point 900 degree C Does not conducts electricity as a solid, but does when melted Undergoes brittle fracture
Use the phase diagram of Substance X below to find the melting point of X when the pressure above the solid is 0.43 atm. solid pressure (atm) liquid gas temperature (K) Note: your answer must be within 12.5 °C of the exact answer to be graded correct. X 5 ?
Use the phase diagram of Substance X below to find the melting point of X when the pressure above the solid is 0.68 atm. solid pressure (atm) liquid gas 200 400 temperature (K) Note: your answer must be within 20 °C of the exact answer to be graded correct. [x 0 ?
Question 3 3 pts All of the properties below are associated with calcium nitrate Ca(NO3)2 or C6H12. Which one of these physical and chemical properties would be associated only with cyclohexane, C6H12? contains ionic bonds. produces ions when dissolved in water. insoluble in water. melts above 500°C. Question 4
9. Large intermolecular forces in a substance A) low vapor pressure B) high boiling point C) high heats of fusion and vaporization O) high critical temperatures and pressures E) all of the above are manifested by 10. Of the following A) CBr4 is the most volatile. B) CCl4 C) CH4 D) CF4 E) C6H14 Refer to the phase diagram below to complete questions 11-13 1.5 P (atm) 1.0 0.5 0 100-1-20 30 40 50 6070 T C'C) 11. What is...
Shape, melting point & solubility (2.5 pts) When melting or boiling a substance (both of which are physical changes), which kinds of attractions may be broken? Circle all that apply. hydrogen bonding covalent bonds dipole-dipole London forces vs. If I told you that only one of these molecules is a solid at room temperature, which one is that more likely to be? How can you tell from the structure? Circle the hydrophilic portion of the molecules above and put a...
Decide what kind of crystalline solid each element or compound in the table forms, and what kind of force holds the solid together. Then, rank the solids in order of decreasing melting point. That Is, select "1" next to the solid with the highest melting point, "2" next to the solid w highest melting point, and so on. CYou may need to use the scrollbar to see all the choices.) type of solid force holding the solid melting point o...
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