Periodic Table
Where are metals found on the periodic table?
Left side of the stair step. Nonmetals on the right side of the stair step.
When a liquid goes to a gas phase, does it gain or lose energy?
Anions - negative charge. Metals are positively charged.
Aqueous (aq)
6 (2 in single, 4 in double).
What are group 1 elements called?
Alkali Metals
When a liquid goes to a solid phase, what is the phase change called?
Freezing
For the compound of barium nitride, how many barium atoms and how many nitrogen atoms are there?
3 Barium and 2 Nitrogen
Does a change in mass signify that a chemical reaction has taken place?
No - detection of gas, change in color, temperature change, formation of a solid
What is the name of a single bond?
Sigma (pi is double)
What charge do halogens have?
-1
What is the phase change from solid to gas?
Sublimation
What type of compound is formed between only nonmetals? What type of compound is formed between a cation and an anion?
Covalent (nonmetals)
Ionic (cation and anion)
What type of reaction has a more reactive element take the place of a less reactive element?
Single displacement
Which of the following structures has a lone pair on the central atom?
NH3 , BF3, or CO2
Where are the transition located and what is special about them when you write out their name?
Groups 3-12; they have a roman numeral for their charge
What is the solid called that is formed from 2 aqueous solutions?
Precipitate
What comes first in naming an ionic compound?
The cation.
What type of reaction takes place between a hydrocarbon and oxygen gas? What are ALWAYS the products?
Combusion; CO2 and H2O
Which of these contain a double bond?
H2, O2, N2
How many valence electrons does group 15 have?
5
When a substance has a phase change from solid to liquid, what happens to the energy and attractive forces of the particles?
Energy increase; attractive force decrease
When H+ and OH- bond, what does it form?
H2O
Be3(PO4)2 and NaNO3
Add 3 electrons