SoM and Gas Law Review

According to the Law of Conservation of Mass, in any chemical change

• the mass of reactants is greater than the mass of products

• the mass of reactants is less than the mass of products

• the mass of reactants is equal to the mass of products

• the masses of products and reactants have no predictable relationship

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Consider the phase change diagram below.  In which location(s) on the graph is energy being absorbed to faciliate a phase change?

• a only

• b and d

• c and d

• b only

Tags

NGSS.MS-PS1-4

The strongest intermolecular forces exist between particles of a _______ and the weakest intermolecular forces exist between particles of a ______.

• solid, liquid

• solid, gas

• liquid, gas

• liquid, solid

Tags

NGSS.MS-PS1-4

Which is the state change that occurs when a solid becomes a gas without becoming a liquid first?

• vaporaization

• deposition

• freezing

• sublimation

Tags

NGSS.MS-PS1-4

Which type of bond is pictured in this figure?

• ionic

• dipole

• hydrogen

• dispersion

Which is the state of matter shown in this figure?

(a)  

Tags

NGSS.MS-PS1-1

A chemical composition of two or more different elements joined together in fixed proportions is known as a(n) ____.

• compound

• element

• homogeneous mixture

• heterogeneous mixture

Tags

NGSS.MS-PS1-1

Which is NOT a chemical change?

• a piece of wood is burned

• an egg is cooked

• a bar of iron rusts

• ingredients for a cake are stirred together

Tags

NGSS.MS-PS1-2

Which is the state of matter shown in this figure?

• solid

• liquid

• gas

• plasma

Tags

NGSS.MS-PS1-4

The temperature at which the motion of particles theoretically ceases is ____.

• -273 K

• 0 K

• 0 degree Celsius

• 273 degree Celsius

Tags

NGSS.MS-PS1-4