Bonding & Naming
What type of bond is CF4? What is the name for this compound?
Carbon tetraflouride
Group 17 elements are known as:
Halogens
The substances on the right side of a chemical equation.
Products
What colour does litmus paper turn when dipped into an acid?
Red
The number of NEUTRONS in an element is equal to its:
Atomic mass - Atomic number
In reactions with metals, non-metals tend to _____ electrons and become ________.
1. Gain
2. Anions
These compounds can conduct electricity when they are either melted or dissolved in water
Ionic compounds
A reaction that releases heat energy is written on which side of the chemical equation?
Right side
A base reacting with an acid forms water and this.
Salt
Balance this equation:
___ K + ___ Br2 → ___ KBr
2, 1, and 2
The chemical formula for magnesium sulfate is:
MgSO4
This group of elements rarely forms ions because their valence shells are full.
Noble gases
This law states mass cannot be created or destroyed.
Law of Conservation of Mass
Acids reacting with metals produce this gas.
Hydrogen gas
You start to feel a burning sensation in your stomach. Your mother gives you some Tums containing magnesium hydroxide to help ease the pain. What is this an example of?
Neutralization Reaction
What are multivalent metals? Provide an example. What are roman numerals and why do we use them?
Multivalent metals have more than one possible charge in the periodic table. We use roman numerals to indicate the charge of the metal. Example: Fe, Pb, Ni
What increases from left to right in a period? What about from top to bottom in a group?
1. Valence electrons
2. Shells
What type of reaction occurs between sodium and chlorine?
Synthesis
HNO₃ is named this.
Nitric acid
Name three properties of metals
1. Solid (at room temp.)
2. Malleable
3. High conductivity
4. High Lustre
Which group of elements are highly reactive with water?
Alkali metals
Name three properties of non-metals:
1. Solid, liquid or gas (at room temp.)
2. Dull
3. Brittle
4. Insulators
Which of the following are the products of a complete combustion reaction?
Carbon dioxide and water
Name three properties of bases
1. pH of 7 to 14
2. Bitter tasting
3. Good conductors
Explain why Carbon Monoxide (CO) is such a dangerous substance.
Carbon monoxide (CO) is dangerous because it's a colorless, odorless gas that replaces oxygen in your blood, preventing oxygen from reaching vital organs, leading to suffocation, brain damage, and death, often with initial symptoms like headaches and dizziness that can progress quickly to unconsciousness and fatality. Since you can't see, smell, or taste it, it's a silent killer from fuel-burning appliances, car exhaust, and generators, making CO detectors essential for safety.