Periodic Table
What is the symbol for Sodium?
Na
This type of atom has the same number of protons but different numbers of neutrons.
What are isotopes?
This type of reaction occurs when two or more substances combine to form one product.
What is a synthesis reaction?
This number is known as Avogadro’s Number.
What is 6.02×1023?
This gas law states that pressure and volume are inversely related.
What is Boyle’s Law?
Which family on the periodic table is known for being very reactive and having only 1 valence electron?
Alkali Metals
In a Bohr model, electrons move in these around the nucleus.
What are energy levels (or shells)?
In this type of reaction, one compound breaks apart into simpler substances.
What is a decomposition reaction?
How many significant figures are in the number 0.00450?
What is 3?
If temperature increases while volume stays constant, this happens to pressure.
what is pressure increases?
As you move from left to right across the periodic table, what happens to the number of protons in the atoms?
Increases
This metalloid is commonly used in computer chips.
What is silicon?
This is the law stating matter cannot be created or destroyed during a chemical reaction.
What is the Law of Conservation of Mass?
This unit is used to measure the amount of particles in chemistry.
What is a mole?
This temperature scale must be used in gas law calculations and how do you convert to that metric?
What is Kelvin and you add 273
Which element is located in Period 3 and Group 17 of the periodic table?
Chlorine
An atom with 15 protons and 16 neutrons has this mass number.
What is 31?
When silver nitrate reacts with sodium chloride and forms a solid, this type of reaction occurs.
What is a double replacement reaction?
How many moles are in 12.04 × 10²³ particles?
What is 2 moles?
A gas has a volume of 2.0 L at 300 K. If the temperature increases to 600 K, this is the new volume.
what is 4.0L?
Why are elements in the same group/family on the periodic table chemically similar?
They have the same number of valence electrons
According to the Bohr model, this is the maximum number of electrons the first energy level can hold.
What is 2?
The substances present before a chemical reaction begins are called these.
What are reactants?
Round 45.6789 to 4 significant figures.
What is 45.68?
This type of reaction absorbs heat from its surroundings.