Balancing Equations
__Na+__Cl2→__NaCl
2Na + Cl₂ → 2NaCl
What type of reaction is...
2Mg + O2 → 2MgO
What is a Synthesis Reaction?
What kind of pH (acid, neutral, base and then strong or weak) does HClO₄ have.
What is a Strong Acid?
What is the molarity of a solution made by dissolving 0.50 moles of NaCl in 1.25 liters of solution?
0.40M
A substance that are initially present in a chemical reaction.
What is Reactants?
__Ca(OH)2→__CaO+__H2O
Ca(OH)2→CaO+H2O
What reaction type is...
C6H12O6 + 6O2 → 6CO2 + 6H2O
What is combustion reaction?
What kind of pH (acid, neutral, base and then strong or weak) does H₂C₂O₄ have?
What is a Weak Acid?
How many moles of HCl are in 250.0 mL of a 0.800 M HCl solution?
0.20 mol
Give the definition of Coefficients.
What is large numbers in a chemical equation that indicate the number of copies of each substance in the equation?
__C3H8+__O2→__CO2+__H2O
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
What type of reaction is ...
(NH4)2Cr2O7 → Cr2O3 + N2 + 4H2O
What is decomposition reaction?
What kind of pH (acid, neutral, base and then strong or weak) does LiOH have.
what is a strong base?
What volume (in mL) of a 1.50 M KOH solution is needed to obtain 0.300 mol of KOH?
200ml
The separation of a compound into its constituent ions or molecules, often in a reversible process.
What is Dissociation?
__C4H10+__O2→__CO2+__H2O
2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O
or
C₄H₁₀ + 6.5O₂ → 4CO₂ + 5H₂O
What type of reaction is ...
3Fe + 4H2O → Fe3O4 + 4H2
What is single replacement?
What kind of pH (acid, neutral, base and then strong or weak) does the following reaction end in:
2H2O(l) → 2H+(aq)+ 2OH−(aq)
What is Neutral No charges shown and the amount of OH- and H+ is equivalent.
A student dissolves 8.75 g of NaOH (molar mass = 40.00 g/mol) in enough water to make 500.0 mL of solution. What is the molarity?
0.438M
A general measurement unit that reports the amount of solute present in a known amount of solution or solvent.
What is Concentration?
__C2H6+__O2→__CO2+__H2O
2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O
Or
C₂H₆ + 3.5O₂ → 2CO₂ + 3H₂O
What type of reaction is ...
Pb(NO3)2 + 2KI → PbI2 + 2KNO3
What is double replacement?
What kind of pH (acid, neutral, base and then strong or weak) does the following reaction end in:
CH3COOH(aq) + OH−(aq) → CH3COO−(aq) + H2O(l)
What is weak acid? This is due to the donation of H+ from the reactant in reaction.
A solution has 198g of H2SO4 and 1250ml of water what's the concentration?
1.62 M
A change in one of the variables that describe a system at equilibrium produces a shift in the position of the equilibrium that counteracts the effect of this change.
What is Le Chatelier's Principle?