TEST B. Complete the table below using the following terms. (Solid, Liquid, Gas) Phase Change From To Deposition Sublimation Freezing Melting Condensation Vaporization

Explain why ice floats in water but solid benzene sinksin liquid benzene. Which behavior is more “normal”?

1. A 1.70 m3 container holds a sample of O2 gas. At 294 K the pressure of the container is 1.08 x 105 Pa. How many moles of O2 are in the container? (Enter your answer as a number only)   2. Classify each of the following substances, in the solid state, as molecular, ionic, covalent network or metallic.   Substance Appearance Melting Pt. (°C) Boiling Pt. (°C) Conducts as solid Conducts as liquid A grey 795 3468 yes yes B colorless crystals 87 220 no no C colorless crystals 1713 2230 no no D yellowish hexagonal crystal 740 1100 no yes   A   B   D   C 1. metallic 2. molecular 3. covalent network 4. ionic what is  A  B  C  D

abel the phase changes on the diagram below. lot or 1o losa gib-nol.ool oinoloonolobn Gas

Study the following phase diagram of Substance X. pressure (atm) O STATES OF MATTER Using a phase diagram to predict phase at a given temperature... 12 solid Explanation 100 liquid 200 temperature (K) Use this diagram to answer the following questions. Check gas Suppose a small sample of pure X is held at -90. °C and 7.7 atm. What will be the state of the sample? Suppose the temperature is held constant at -90. °C but the pressure is decreased by 5.8 atm. What will happen to the sample? y pearson login - Yahoo Search Results Yahoo Search Results (choose one) (choose one) A

The strongest interparticle attractions exist between particles of a between particles of a O solid, liquid Ogas, solid O solid, gas O liquid, solid O liquid, gas and the weakest interparticle attractions exist

2. ature SCI-CH Brief Snapshot Assessment of Phase Changes E At what point do a solid and gas exist at equilibrium? 1. A Boiling point B Melting point C Sublimation point D Freezing point the 120 00. 06 70 09 LEG 'C

For liquid state samples of the following diatomic substances, classify the dominant intermolecular forces present as London dispersion forces, dipole-dipole attraction, or hydrogen bonding. a)  F2 b) HBr

= STATES OF MATTER Using a phase diagram to predict phase at a given temperature... Study the following phase diagram of Substance X. pressure (atm) 2.8- 1.4- solid 0- 0 100 liquid 200 temperature (K) Use this diagram to answer the following questions. gas 300 Suppose a small sample of pure X is held at -231. °C and 1.7 atm. What will be the state of the sample? Suppose the temperature is held constant at -231. °C but the pressure is decreased by 0.8 atm. What will happen to the sample? Suppose, on the other hand, the pressure is held constant at 1.7 atm but the temperature is increased by 121. °C. What will happen to the sample? (choose one) ✓ (choose one) (choose one) X 3 0/3

X Bb DO: MLM HW 2.5- Blackbr X ck Mind Tap - Cengage Learnir X ml?deploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1774598910&snapshot..... The following information is given for silver at 1 atm: boiling point = 2212 °C melting point = 961 °C specific heat solid = 0.238 J/g°C specific heat liquid = 0.285 J/g°C Submit Answer ase Change Energetics: This is group attempt 1 of 10 Use the References to access important values if needed for this question. References AHvap(2212 °C) = 254 kJ/mol AHfus (961 °C) = 12.0 kJ/mol What is AH in kJ for the process of freezing a 29.0 g sample of liquid silver at its normal melting point of 961 °C. MacBook Air G To analyze the reaction, firs X kj Autosaved at 9:15 PM Bb