Answer:
Ví dụ về tính chất hóa học bao gồm tính dễ cháy, tính độc, tính axit, khả năng phản ứng (nhiều loại) và nhiệt của quá trình cháy.
Explanation:
Answer:
See below in bold.
Explanation:
a) Yes because it is an ionic compound. Forms ions in water solution.
b) This is an alcohol with covalent bonds it does not ionise in water - no.
c) Yes this forms ions in water solution.
d) This is a sugar and does not ionise so No.
Answer : As I understand this is question of matching the correct pairs.
So here are the correct pairs.
1) The attraction
between molecules at the surface of a liquid column
---->Surface tension
Surface tension is a phenomenon observed at the <span>surface film of a liquid which is usually caused by the attraction of the particles on the surface layer by the bulk moiety of the liquid, and which tends to minimize its surface area.</span>
2) The energy of
motion
----> Kinetic energy
Kinetic energy is the energy which is possessed by an object due to motion.
3) The movement
of liquids through the spaces of materials
----> Capillary action
Capillary action is defined as<span> the ability of any liquid to flow through the narrow spaces without any of the assistance, or even in opposition to, external force like gravitational force.</span>
4) The overall
movement of suspended or dissolved particles resulting from the random movements
of individual particles
----> Diffusion
Diffusion in liquids can be defined as the random movement of particles which are dissolved or are in suspended state in liquid.
5) Attraction of
one particle in a material for another
----> Cohesion
Cohesion is defined as the attraction between two different particles in a state of matter
6) The
attraction between unlike substances
----> Adhesion
Adhesion is a property of attraction between two unlike substances.
7) A measure oof
the resistance of a liquid to flow
----> Viscosity
Viscosity is the term used to define as the resistivity of liquid to flow.
Explanation:
According to ideal gas equation, product of pressure and volume equals the product of number of moles, gas constant and temperature.
Mathematically, PV = nRT
where P = pressure, V = volume
n = no. of moles, R = gas constant = 0.0821 atm L/mol
T = temperature
Since, it is known that number of moles equal mass divided by molar mass.
Hence, number of moles of given sample of acetone are as follows.
No. of moles = 
= 
= 
mole
Therefore, putting the values in ideal gas equation as follows.
PV = nRT
= 0.359 atm
In 1 atm equal to 760 mm Hg. So, convert 0.359 atm into mm Hg as follows.
= 272.84 mm Hg
Hence, pressure of the ideal gas will be 100 mm Hg + 272.84 mm Hg = 372.84 mm Hg
Thus, we can conclude that the ideal gas pressure in the container if all of the liquid acetone evaporated is 372.84 mm Hg.
