Chapter 1
What is the definition of volume?
The amount of space something takes up.
When a new substance is created, what kind of change has occurred?
A chemical change has happened.
What subatomic particle has no charge?
Neutrons have no charge.
What does the Octet Rule state?
It states that when bonding, atoms will gain, lose, or share electrons so each atom will get 8 valence electrons.
When a solution is soluble, what does it do in water?
It will dissolve in water.
What is the difference between mass and matter?
Mass is the amount of matter an object contains, and matter is any substance that has mass and takes up space by having volume.
What does (aq) mean in terms of a phase indicator?
It means aqueous solution (dissolved in water).
What is the definition of isotopes?
Atoms of the same element with a different number of neutrons.
When writing a chemical formula, what rule must all compound follow?
The Rule of Zero Charge.
When molecules have a ring structure with a bridge, what will it smell like?
It will smell like camphor (piney).
What is it called when there is a curve formed by a liquid in a container?
It is called a meniscus.
What law states that matter cannot be created or destroyed, only changed in form?
The Law Conservation of Matter states this.
When and what scientist discovered the existence of atoms?
Democritus discovered atoms in 400 BC.
What colors emit the highest amount of energy?
Violet, indigo and blue will produce the highest amount of energy.
What is the job of the HONC 1234 Rule?
It tells how many bonds the elements will make.
What properties do not change if sample size is changed?
Intensive properties don't change if sample size changes.
What similarities does NaNO3 and H20 show?
They both are clear, colorless, and a liquid.
When Niels Bohr performed flame tests, what did the tests reveal?
The flame tests revealed that only certain colors of light are given off. Electrons exist at certain distances away from the nucleus.
What subatomic particles are involved in ion formation?
Valence electrons are involved.
What do Amines contain that no other smell has?
Amines contain Nitrogen, no other smell has this.
What is the density of an object that has a mass of 55.4 g and a volume of 6.6 mL?
The density is about 8.39 g/mL.
On the Periodic Table of the Elements, what is special about group 8A?
Group 8A's are Noble Gases and have full electron shells.
Calculate the average atomic mass of Chlorines 2 main isotopes. Chlorine 1 has a mass at about 35, and chlorines 2 has a mass at about 37.
The weighted average of the Chlorines isotopes is about 35.5 amu.
How many Fluorine and Calcium atoms are needed in order for them to form and ionic bond? What is the compound equation?
You need one Calcium atom and 2 Fluorine atoms to make it an ionic bond. The equation is CaF2.
What is happening when a putrid smell is heated and turns sweet?
The structural formula is changed resulting in the putrid smell to turn to sweet.