Chapter 5&6 Flashcards
Law of Conservation of Atoms
Number of atoms o each type of element must be the same on each side of the equation.
Law of Conservation of Matter
Matter can be neither created not destroyed. Amounts of reactants and products must be equal.
Decomposition Reactions
One substance is broken down Ito two or more simpler substances.
Ax➡A+x
Synthesis/ Combination/ Precipitation Reactions
Two or more substances react to form a single substance.
A+x➡AX
Acid base reactions
Reaction in which an acid and base makes a salt and water.
Single replacement reactions
Takes place when one element reacts with a compound to displace an element from the compound.
A+bx➡ax+b
What are the diatomic molecules
N2,h2,o2, and x2
Double placement reaction
Two dissolve compound react and exchange partners to form two new compounds. Take place between substances dissolved in water.
Ax+by➡ay+bx
Solvation
Water breaks the + and - charged pieces apart and surrounds them.
What are electrolytes? What are the types?
Dissolved substance in water.
Strong- conduct current efficiently
Weak- conduct small current
Non electrolytes- no current flows
What is oxidation agent and reducing agent
Reduction- oxidizing agent
Gains electrons, lose oxygen, gain h
Oxidation- reducing agent
Lose electrons, gain oxygen, lose h
What is a mole?
Unit of measure for an amount of a chemical substance
Stoichiometry
Refers to the relative quantities of moles and calculations that make use of mole ratios
Limiting reactant
Reactant will run out first. Determines amount of product that can be produced.
Solvent
Substance present in the largest amount in the solution
