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WorksheetsFinal Exam Review 19-20
Total questions: 25
Worksheet time: 13mins
What do you know about a neutral atom's protons and electrons?
They are the same
They can be added together to determine the mass number
They are different
They can be determined by looking at the atomic mass
If a neutral atom has 6 electrons and 8 neutrons, what is it's identity?
Silicon
Carbon
Oxygen
Helium
Which of the following accurately describes the Law of Conservation of Matter?
The total mass of the products will be less than the total mass of the reactants
The total mass of the reactants will be less than the total mass of the products
The total mass of the reactants will be the same as the total mass of the products
The mass of the products and reactants are unrelated since they are different compounds
Use the solubility curve attached to help you answer the following question:
If I dissolved 10 g of KClO3 in 100 mL of water at 30oC, how would I define the solution?
Supersaturated
Unsaturated
Saturated
What particle determines the identity of the element?
Proton
Neutron
Electron
Quark
What subatomic particles must be gained or lost in order for an atom to form an ion?
Proton
Neutron
Electron
Prion
What elements can be found to the left of the metalloid staircase and are typically form cations (+ charge)?
Metals
Nonmetals
Metalloids
Noble Gases
What makes all elements except the noble gases unstable?
They have a full valence shell
They have larger nuclei
They do not have a full valence shell
They are all metals
Which element would you expect to have properties most similar to sodium (Na)?
Potassium
Magnesium
Neon
Chlorine
Which of the following differences between ionic and covalent compounds is a correct statement?
Ionic bonds form between two nonmetals and covalent bonds result from metals and nonmetals bonding
Covalent compounds can only exist as gases
Ionic and metallic bonds are the same thing
Ionic bonds transfer electrons and covalent bonds share them
What type of elements form covalent compounds?
Only metals
Only nonmetals
Metals and nonmetals
Only transition metals
Which of the following represents and ionic compound?
CO2
KF
CF4
Na
Which of the following would accurately depict the formula for an ionic bond between Magnesium (Mg) and Fluorine (F)?
HINT: Think about each element's group number and how that relates to charge!
Mg2F
MgF
MgF2
Mg2F2
CH4 + _____Cl2 --> CCl4 + 4HCl
What coefficient for Cl2 is needed to balance the equation?
1
0
2
4
In what state of matter do particles have the most energy?
Plasma
Solid
Liquid
Gas
Which of the following accurately describes how particles in a liquid move?
Particles move freely throughout their container
Particles vibrate back and forth
Particles slip past one another but do not move completely freely
Particles only move in a gas
What happens to the pressure of a gas when its temperature is decreased? Assume the volume is constant.
It increases
It decreases
It does not change
It depends on the identity of the gas
Which of the following has the lowest concentration of sugar?
A gallon of tea with four cups of sugar
A gallon of tea with a cup of sugar
A gallon of tea with two spoonfuls of sugar
A gallon of tea with a pinch of sugar
The more solute that a solution has dissolved in a given volume of solvent, the ___________ the concentration.
lower
higher
Which of the following would result in an increase in the rate at which a solute can dissolve?
Cooling the solution
Allowing the solution to stand completely still for a long period of time
Packing the solute into big chunks (from small pieces/powder)
Heating the solution
Use the solubility curve attached to answer the following question:
What is the maximum amount of KCl solute that can dissolve at 30oC?
10 g
45 g
35 g
50 g
How would you describe a solution with a pH of 7?
Acidic
Basic
Neutral
How would you describe a solution with a pH of 1.2?
Acidic
Basic
Neutral
How would you describe a solution with a pH of 9.6?
Acidic
Basic
Neutral
How many protons are in one atom on Carbon-14?
14
8
6
20
