What is/if A lithium atom contains 3 protons, 4 neutrons and 3 electrons. What would be formed if one proton is added to this atom?
100
Decreases;Increases
What is/as Ionization energy _________ as you move down a group and _________as you move across the periodic table.
100
Protons
What is/ A chemical bond between atoms results from the attraction between electrons and_____?
100
Never true
What is / The amount of product can be formed from the amount of excess reactants (sometimes true,never true,always true)
100
It is a reaction in which an element displaces (replaces or trades places with) another element in a compound producing a new compound and new element
What is a replacement reaction?
200
Atoms are the basic building blocks of ordinary matter.
What is an atom?
200
Two
What is the number of electrons that are in the valence shell of the alkaline earth metals?
200
covalent and coordinate
What is The bonds present in N2O5?
200
31.2 mol O2
What is/How many moles of oxygen are required to burn 4.80 mol of butane completely?
200
synthesis and decomposition
Which two chemical reactions are considered opposites?
300
protons, electrons ,and neutrons
What is the 3 particles that atoms are composed of.
300
fluorine < boron < chlorine < aluminum
What is the Rank the following elements in order of increasing atomic size.
boron, aluminum, fluorine, chlorine
300
sp²
What is The hybridization of sulphur dioxide?
300
Sometimes true
What is/ In a chemical reaction between two reactants, the limiting reactant will be the reactant with
the smaller mass.(always true,sometimes true, or never true)
300
It is a reaction in which 2 reactants combine to make a larger or more complex product; it follows the pattern A + B -> AB
What is a synthesis reaction and the general pattern?
400
a basic substance that can't be simplified
What is an element
400
2
What is the number of valence electrons in group 2?
400
a shared electron pair
What does a A covalent bond consists of?
400
sometimes true
What is/ Representative particles and moles are conserved in chemical reactions(sometimes true,never true,always true)
400
It is a reaction in which a large molecule breaks down to form 2 or more simpler products; the general pattern is AB -> A + B
What is a decomposition reaction?
500
a molecule that contains more than one element
What is a compound?
500
Atomic Number
What is/increases from left to right across the periodic table?
500
nonpolar covalent
What If two covalently bonded atoms are identical, the bond is identified as?
500
Always true
What is / The coefficients in a balanced chemical equation can be used to form mole ratios relating
reactants to products (never true,always true,or sometimes true)
500
decomposition reaction
What is/ A bottle of hydrogen peroxide that turns into hydrogen and oxygen is an example of this kind of chemical reaction.