Atoms Matter And Periodic Table 8th Physical Science Part 2 Question Preview (ID: 41373)


Midterm Review. TEACHERS: click here for quick copy question ID numbers.

Gas production is a sign of a:
a) Chemical Change
b) Physical Change
c)
d)

A neutral atom:
a) Has the same number of electrons as neutrons
b) Has the same number of protons and electrons
c)
d)

Magnesium has:
a) 12 protons, 11, neutrons and 12 electrons
b) 12, protons, 12 neutrons and 12 electrons
c)
d)

Lithium has:
a) 3 protons, 4 neutrons and 3 electrons
b) 4 protons, 4 neutrons and 4 electrons
c)
d)

What tells us the number of protons in an atom?
a) Atomic Number
b) Mass number
c)
d)

Which is considered a non-metal?
a) Oxygen
b) Sodium
c) Potassium
d)

Which is considered a metalloid?
a) Silicon
b) Potassium
c) Magnesium
d)

A mixture can be __________ separated
a) Physically
b) Chemically
c)
d)

A pure substance _______ be separated physically
a) can
b) cannot
c)
d)

You place ice cubes in a closed zip lock bag and measure its mass. After the ice melts, you measure the mass again. What should be the conclusion?
a) You will have the same mass as you started because the bag was closed and nothing escaped
b) You will have a different ending mass because the bag was closed and nothing escaped
c)
d)

You place ice cubes in a cup with no lid and measure its mass. After the ice melts and you measured again, the mass was less than you started with. What should be the conclusion?
a) You will have a different ending mass because the cup had no lid and evaporation took place
b) You will have the same mass because the cup had no lid and evaporation took place
c)
d)

If you have 100g of sugar and you add 100g of water, what is your final mass?
a) 180g
b) 200g
c)
d)

Which pair of elements has similar properties?
a) Ca and Sr
b) Sc and Ti
c) Mn and F
d)

Solid, shiny, reacts with Fluorine, cannot be broken down physically or chemically Element
a) Element(pure substance)
b) Compound(molecule)
c)
d)

Which is not a type of heat transfer?
a) Conduction
b) Convection
c) Combustion
d) Radiation

Which type of heat transfer occurs in the ocean?
a) Conduction
b) Convection
c)
d)

Think of the following as atoms: A + B = AB
a) Starts as two separate elements and forms a compound
b) Starts as two different compounds and becomes a mixture
c)
d)

Which is an element?
a) Co
b) SrO
c) Na + Mg
d) CoS

States that your products will always equal your reactants:
a) Law of Conservation of Mass
b) Law of Conservation of Energy
c)
d)

The most reactive elements are located in group:
a) 1
b) 18
c) 5
d)

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