Anonymous
Anonymous asked in Science & MathematicsChemistry · 8 months ago

!!!TRUE/FALSE!!! 10 CHEMISTRY QUESTIONS  -And if you can, tell me why?

1). Collisions between gas molecules and the walls of the container are elastic.

TRUE

FALSE

2). The relationship between moles and pressure of a gas, when volume and temperature of a gas are held constant, is: P *(1/n) = k.

TRUE

FALSE

3). If the temperature and volume of a gas are held constant, an increase in pressure would most likely be caused by an increase in the number of moles of gas.

TRUE

FALSE

4). Substances held together with electrostatic forces, such as ionic crystals, like LiBr, are highly malleable and soft.

TRUE

FALSE

5). The polystyrene polymer used to make foam take-out containers is an example of a crystalline solid.

TRUE

FALSE

6). Amorphous solids are formed by melting and then rapidly cooling a substance.

TRUE

FALSE

7). If the rate of melting and the rate of freezing were the same, we could say there is a dynamic equilibrium of the system.

TRUE

FALSE

8). Temperature and vapor pressure are inversely proportional.

TRUE

FALSE

9). If the vapor pressure of a liquid is less than the atmospheric pressure, the liquid will not boil.

TRUE

FALSE

10). The normal boiling point of an element or a substance is the temperature at which the vapor pressure and the atmosphere are equal, when the atmospheric pressure is defined as 1 atmosphere.

TRUE

FALSE

--Please Help Thank you!

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