NC 8.P.1.1 Science Review Question Preview (ID: 20788)


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The best way to CALCULATE the number of Neutrons in an element is
a) Look at its atomic number
b) Look at its atomic mass
c) Atomic mass minus atomic number
d) You cannot find this

The atomic number of an element tells us
a) What it weighs
b) How many protons it has
c) How many neutrons it has
d) Just where to find it on the periodic table

The first three electron shells can fit how many electrons each?
a) Depends on the element
b) 8 ,8, 8
c) 2 ,4, 8
d) 2, 8, 8

A compound is made up of
a) Multiple different elements chemically combined
b) Multiple different elements physically combined
c) The same element over and over
d) A mixture of different things

C2HO4 would have
a) 1 carbon, 2 hydrogen, 4 oxygen
b) 2 carbon, 0 hydrogen, 4 oxygen
c) 2 carbon, 1 hydrogen, 4 oxygen
d) Impossible to know

A homogenous mixture is...
a) The SAME throughout
b) Different throughout
c) A compound
d) An element

Which of these is a heterogeneous mixture?
a) Gold
b) Water
c) Milk
d) A salad

When gas turns into a liquid, that is called
a) Evaporation
b) Condensation
c) Cooling
d) Rain

A gas will usually be...
a) Less dense than a solid
b) More dense than a solid
c) More dense than a liquid
d) It has no mass!

You measure something with a volume of 5 ml and a mass of 20 g. What is the density?
a) 4 ml/g
b) 5 ml/g
c) 15 ml/g
d) 100 ml/g

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