Seriously, dude. You're overreacting.
What is the name of the following type of reaction?
A+B-->AB
Synthesis or combination
Balance the following reaction:
___Al + ____O2 --> ____Al2O3
4,3,2
What is the mole ratio for oxygen: potassium chloride?
2 KClO3 --> 2 KCl + 3 O2
3:2
What is a precipitate?
A solid formed in a chemical reaction between two aqueous solutions.
What is the difference between an empirical and a molecular formula?
Empirical is the most simplified version of a molecular formula.
What are the products in a combustion reaction involving a hydrocarbon?
CO2 and H2O
Balance the following reaction:
___MgCl2 +___Li2CO3 --> ___LiCl + ___MgCO3
1,1,2,1
Consider the following reaction:
Na2CO3 + 2HBr --> 2NaBr + H2O + CO2
If you start with 6 moles of hydrobromic acid, how many moles of water are produced?
3 mol H2O
Identify the precipitate in the following reaction:
3K2S + 2Al(NO3)3--> 1Al2S3 + 6KNO3
Al2S3 is insoluble
What is the molecular formula of a compound with empirical formula CH2O and a molar mass of 180 g/mol?
C6H12O6
Determine whether or not the reaction will occur. If yes, then write out the reaction.
Cu+ Al2(SO4)3 -->
no reaction
Balance:
___CO (g) + ____H2 (g)--> ____C8H18 (l)+___H2O (l)
8,17,1,8
Consider the following reaction:
2HCN +CuSO4 --> Cu(CN)2 +H2SO4
If you start with 1.87 g of HCN, how many mol of Cu(CN)2 will be produced?
0.035 mol Cu(CN)2
Identify the states of matter for each of the following:
H2PO4 + NaOH --> H2O + Na3PO4
aq, aq, l, aq
What is the empirical formula of a compound with 21.2% N, 6.1% H, 24.2 %S, 48.5% O?
N2H8SO4
Determine whether or not the reaction will occur. If yes, then write out the reaction.
zinc metal+ sulfuric acid
Zn+ H2SO4 --> H2 + ZnSO4
Balance the following:
___C2H6 + ___O2 --> ___CO2 +___ H2O
2,7,4,6
Zinc reacts with gold (II) nitrite. If you start with 47.35 grams of zinc and an excess of gold nitrite, how many grams of gold are produced?
142.65 g Au
K2S + ZnCl2-->
Determine the products, balance and identify the precipitate.
K2S (aq) + ZnCl2 (aq) -->2 KCl (aq) + ZnS (s)
What is the empirical formula for a compound that consists of 89.14% Au and 10.80% O?
Au2O3
What is the net ionic reaction for the following reaction?
potassium sulfate + strontium hydroxide -->
Sr2++SO42- --> SrSO4 (s)
Balance the following:
___HClO4 +____P4O10 --> ___H3PO4 +___Cl2O7
12,1,4,6
2Mg +O2 --> 2MgO
What is the limiting reactant if 2.2 g of Mg is reacted with 4.5 L of oxygen at STP?
Mg
Write out and balance the reaction, determine the molar mass of the precipitate.
sodium sulfate reacts with barium nitrate
Na2SO4 + Ba(NO3)2 --> BaSO4 (s) + 2NaNO3
233.386 g/mol
A sample of a compound with a molar mass of 34.00 g/mol is found to consist of 0.44 g H and 6.92 g O. Find its molecular formula.
H2O2