Semester #1 Review

Unit #1

100

What is the abbreviation for millilieters?

mL

200

Is N₂ an atom or molecule? Also, is it an element or compound?

molecule and element

300

Salt dissolved in water is considered what type of mixture? Also (mini unit #6) is it a solution or suspention? What is the solute and what is the solvent

Homogenous mixture

solution

salt is solute and water is the solvent

400

Show the conversion of 1.54 mm to meters

0.00154 m 

500

What is the mass of a rock with the density of 2.56 kg/mL if it takes up a volume of 1.3 mL?

3.33 kg

Unit #2

100

Going from gas to solid is called...

Deposition

200

Which state of matter has the most kinetic energy?

Gas

300

Tires in the summer heat up and expand, this is what law?

Charles' Law

400

The melting point of helium is -272^oC and has a boinling point of -269^oC. What will be it's state of matter if it is at -273^oC?

Solid

500

A piece of zinc and a piece of magnesium of the same mass are heated with the same amount of joules of energy. Given that zinc has a specific heat capacity of 0.39 J/g^oC and that magnesium has a specific heat capacity of 1.020 J/g^oC, which metal will have the lowest temperature? 

Magnesium

Unit#3

100

What is the charge of a proton and where is it found?

+1 and in the nucleus

200

After oxygen reacts it has a -2 charge. How many protons and electrons does oxygen have in this state?

protons 8 and electrons 10

300

What is the name of the most reactive non-metals?

Halogens

400

All elements in Group #1 have the same properties, why is that?

They have the same number of valence electrons

500

An element that is shiny, not very good at conducting electricity and brittle is what type of element?

metalloid

Unit #4

100

CaSO₄ has what type of bonding?

Ionic

200

Name this compound: MgCl₂

Magnesium chloride

300

What is the formula for dihydrogen monoxide?

H₂O

400

Name the following compound: CuCO₃

Copper (II) carbonate

500

Draw the structure of CS₂

S=C=S   ( plus 6 dots around each S)

Unit #5

100

What is one way you know a chemical reaction has occured?

Color change, gives off heat/ light, smell and taste different, bubbles, percipitate

200

Is snapping a glow stick which starts to glow a chemical or physical change?

chemical

300

Melting ice is a endo or exothermic process?

endothermic

400

How many of each element is in the following compound: Hg(NO₃)₄   ?

Hg = 1  N=4   O = 12

500

Balance the following compound:

_Na₃PO₄ +  _CaCl₂ 🡪  _NaCl + _Ca₃(PO₄)₂

2Na₃PO₄ +  3CaCl₂ 🡪 6NaCl + 1Ca₃(PO₄)₂