Unit 1
Unit 2
Unit 3
Unit 4
Mixture of All
100
Metals are located on the ____ side of the periodic table and nonmetals are located on the ____ side.
Metals= left side
Nonmetals= right side
100
How do you know if an atom is neutral?
protons and electrons are equal
100
What type of bond is formed when an element from group 1 combines with an element from group 17?
ionic bond
100
Based on the chemical equation below, how should this reaction be classified?
2KBr + Cl2 --> 2KCl + Br2
Single replacement
100
What are the three states of matter?
solid, liquid and gas
200
Strontium is an example of ____
metal
200
What is the Lewis Dot Structure for Calcium?
200
Metal atoms will MOST likely form ions by the ___ of electrons.
loss of electrons
200
What type of chemical reaction occurs when Beryllium (Be) combines with oxygen (O2) to form beryllium oxide (BeO)?
Synthesis
200
How many valence electrons are in a neutral atom of Nitrogen (N)?
5
300
John has a bucket that has a volume of 40 cm3 with a density of 2 g/cm3. What is the mass?
80 grams
300
Describe how electrons are arranged in the energy levels of a carbon atom?
first energy level= 2 electrons
second energy level= 4 electrons
300
What is the chemical formula for Magnesium Acetate?
Mg(C2H3O2)2
300
This shows a chemical reaction.
Zn + __ HCl --> H2 + ZnCl2
What whole-number coefficient should be placed in front of HCl in order to balance this chemical equation?
2
300
The chemical formula for water H2O. What does the formula show about each element in the compound?
the number of atoms of each element
400
Concrete is an example of ______
heterogenous mixture
400
The isotope 6027Co contains how many neutrons and protons?
33 neutrons and 27 protons
400
Which type of chemical bond accounts for the high electrical conductivity in a bar of pure silver (Ag)?
Metallic
400
A 100-gram sample of cerium- 143 has a half-life of 33 hours. How long will it take until there are only 6.25 grams of cerium-143 left?
132 hours
400
What is nuclear fission?
a process in which the nucleus of an atom splits into two or more lighter nuclei
500
Which change in state of water particles causes the particles to become arranged in a fixed position?
Freezing
500
What is the charge of Chlorine (Cl) if it gains 1 electron?
-1
500
What is the correct name for the compound Fe3P2?
Iron (II) phosphoride
500
Balance the following equation:
__FeCl3 + __NaOH --> __Fe(OH)3 + __NaCl
1 FeCl3 + 3 NaOH --> 1 Fe(OH)3 + 3 NaCl
1,3,1,3
500
Half of a sample of Cobalt-60 decays after 5.26 years to form atoms of another element. Half of a sample of iodine-131 decays after 8.1 days to form atoms of another element. Which BEST explains this difference?
Iodine-131 has a shorter half-life than Cobalt-60.