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Physical Properties of Substances
Page 2
Questions (91)
If the back of your hand is moistened with alcohol, you will find that it rapidly becomes dry ,But if we do so with water it
6 answers
asked by
Sakshi
759 views
What is the approximate boiling point of the substance represented by the complete heating curve below?
2 answers
asked by
Anonymous
740 views
what type of substance would be best for use in a heating system?
a. a solid with a high specific heat b. a liquid with a high
1 answer
asked by
izabela
724 views
Which of the following would lower the vapor pressure of a sample of butanol in a closed container?
I) decreasing the temperature
3 answers
asked by
john
686 views
Consider the following properties of a particular substance:
melting point: -7.2 degrees C boiling point: 58.8 degrees C heat of
2 answers
asked by
Ceamus Angelina
690 views
Mass of an empty flask and stopper is 55.844g. 5mL of an unknown liquid is added and heated in a water bath at 99.7 degrees C.
2 answers
asked by
Gg
579 views
I'm having another problem. These multiple choice questions confuse me.
Can you please help again. The density of seawater is
2 answers
asked by
Pat
562 views
For which properties can a student design an investigation of the electrostatic forces between molecules in a substance? (1
1 answer
asked anonymously
59 views
Question: if you added ethylene glycol to your car's radiator to lower the freezing point to -31.0 degree C, what would the
2 answers
asked by
eliz
545 views
The heat of vaporization of water is 9.73
kcal/mol. At what pressure (in torr) would pure water boil at 89◦C?
2 answers
asked by
Katie
525 views
please help me with this challenge question, as i don't quite understand it.:
Yolanda makes this hypothesis: "If salt is added to
2 answers
asked by
Beth
506 views
Water (H20) is a liquid at room temperature and atmospheric pressure whereas hydrogen sulfide (H2S) is a gas under the same
2 answers
asked by
Travis
514 views
How does water's oxygen content affect freezing point?
2 answers
asked by
John
471 views
Which substance evaporate fast:distilled water,ethanol,aceton and methylated spirit
2 answers
asked by
Nqobile
485 views
do salt in water turn to bubbles
1 answer
asked anonymously
12 views
determine the time of evaporation of 250 ml of water in different envionmental conditions such as at room temperature
1 answer
asked by
allied school muhammad campus
444 views
will paraffin float on water?
1 answer
asked by
Janell
435 views
the accepted boiling point of ethanol is 78.5C. a student takes the temp of a sample of ethanol which is boiling in a beaker on
1 answer
asked by
Anonymous
453 views
Use the table to answer the question.
Mark as Complete Substance Boiling Point (°C) acetone 56 turpentine 160 propane -43
1 answer
asked anonymously
31 views
The density of sea water is 1.03 g/ml. A sample of sea water contains 60 ppm Ca. What is the mass of Ca(NO3)2
present in 20 L of
1 answer
asked anonymously
45 views
do salt in water freeze
1 answer
asked anonymously
10 views
Question 4 (4 points)
The boiling point of a substance is the temperature at which a substance changes from a liquid to a gas.
1 answer
asked anonymously
27 views
You are studying the boiling points of liquids with some fellow students. You have two liquids of different molecular weights,
1 answer
asked anonymously
29 views
Question 3 (1 point)
The melting points of benzene and glycerine are listed below: substance: melting point: Benzene 5.7 degrees
1 answer
asked anonymously
28 views
Read the list of substances.
Spoon, Styrofoam cup, Scissors, Pencil Which substances are likely to float in water? a Spoon and
1 answer
asked anonymously
44 views
Carbonated beverages contain dissolved carbon dioxide gas. Which temperatures are best for the liquid while it is being produced
1 answer
asked anonymously
28 views
Which of the following properties could a student investigate to learn about the electrostatic forces between the molecules of a
1 answer
asked anonymously
24 views
1-Is this a chemical change?
2-What happens to molecules in each object as they change? person is holding a piece of gallium
1 answer
asked by
trippie
16 views
Which statement best describes what is happening when sugar dissolves in water?
a Sugar stays together, but in a liquid form that
1 answer
asked by
yoyo808
24 views
What property of water allows the paper clip to float on top of it? explain
a Viscosity b Vapor pressure c Surface tension d
1 answer
asked anonymously
14 views
A student places a drop of purple food coloring into one beaker of water at 20°C and another drop into another beaker of water
2 answers
asked by
Demon
65 views
Which statement correctly describes the relationship between a substance's boiling point, molecular structure, and electrostatic
1 answer
asked anonymously
24 views
A student places a drop of purple food coloring into one beaker of water at 20°C and another drop into another beaker of water
1 answer
asked by
shhh
31 views
A student places a drop of purple food coloring into one beaker of water at 20°C and another drop into another beaker of water
1 answer
asked anonymously
113 views
Which statement correctly describes the relationship between a substance's boiling point, molecular structure, and electrostatic
1 answer
asked anonymously
46 views
A student looks up the data below during the design of an experiment.
Which of the following might be a possible hypothesis that
1 answer
asked anonymously
30 views
A student places a drop of purple food coloring into one beaker of water at 20°C and another drop into another beaker of water
1 answer
asked anonymously
23 views
Multiple Select Question
A student places a drop of purple food coloring into one beaker of water at 20°C and another drop into
1 answer
asked anonymously
23 views
Color is a physical property of a particular substance. Why can you use a change and colored indicate that a chemical change has
1 answer
asked anonymously
13 views
If you place a solid in water, you can determine: (Act 2,3)
A. If the solid more or less dense than water B. If the solid is more
1 answer
asked anonymously
22 views
A mixture of CH2Cl2(l) and CHCl3(l) had a calculated vapor-pressure of solution to be 478 mmHg at room temperature. Upon
1 answer
asked anonymously
21 views
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Parent Categories (4)
Chemical changes
Chemistry
Science
Science and Chemistry