The Balanced equation: N2+ 3H2 >>> 2NH3
For every one mole of nitrogen (N2) consumed 2 moles of ammonia (NH3) are produced. How many moles of ammonia would be produced if 3.0 moles of N2 were consumed?
What is 6 mols of NH3?
100
____ P4 + ____ O2 →____ P2O3
What is 1 P4 + 3 O2 → 2 P2O3
100
CaO(s) + H2O(l) → Ca(OH)2(s) + 65.2kJ
In this reaction delta h is ......
What is negative?
100
Br (s)>>>> Br (l)
What is melting? physical change
200
What is the mass number of an atom that contains 15 protons, 18 electrons, and 16 neutrons?
What is 31?
200
The mole ratio for the balanced equation
2 Mg + O2 >>>>2 MgO
What is 2:1:2
200
____GaF3 + ___ Cs → ___CsF + ____Ga
What is 1 GaF3 + 3 Cs →3 CsF + 1 Ga
200
In an equation to the break the bond
2 NH3(g) + 300 kJ >>N2(g) + 3 H2(g)+ 100
What is the value and sign of delta H
What is postive DELTA H +200
200
Cu + AgNO3 ---> Ag + Cu(NO3)2
What is single replacement?
300
A piece of iron (Fe) has a mass of 95.2 grams. How many mole of iron are present?
What is 1.7 mol of Fe?
300
The molarity of 245.0 g of H2SO4 dissolved in 1.000 L of solution?
What is 2.498 M ?
300
____NaF + ___ Br2 →___ NaBr + ____F2
What is 2 NaF + 1 Br2 →2 NaBr + 1 F2
300
In a potential energy diagram for a reaction if the products ends lower than the reactants, delta h is.....
What is exothermic?
300
HgO ---> Hg + O2
What is decomposition?
400
What is the total number of atoms in 1.0 mole of CO2?
What is 1.8 X 10 ^24
400
How many liters does 3.8 moles of O2 occupy at STP (standard temperature and pressure)?
What is 85.12 L O2?
400
___ Al + _____ HCl →____ H2 + ___AlCl3
What is 2 Al + 6 HCl → 3 H2 + 2 AlCl3
400
AB + Energy >>>> A+B
Delta H is
What is positive?
400
What type of reaction?
NaCl + H2SO4 ---> Na2SO4 + HCl
What is Double Replacement?
500
If 75% of the isotopes of an element have a mass of 35.0 amu and 25% of the isotopes have a mass of 37.0 amu, what is the atomic mass of the element?
What is 35.5?
500
H2O + Na --> NaO + H2
1.3g of H2O reacts with 2.5g Na to form NaO and H2. What is the theoretical yield of NaO in grams?
What is 2.8g NaO?
500
__Na3PO4 +____CaCl2 →_____ NaCl + ____ Ca3(PO4)2
What is 2 Na3PO4 + 3 CaCl2 →6 NaCl + 1 Ca3(PO4)2
500
Write the equation for the exothermic dissociation of MgCL2?
What is MgCl2 (s >> Mg 2+ (aq) + 2Cl- (aq) + heat
500
The balanced equation for aluminum metal and iron(III) oxide. Predict the products and reaction type
What is 2 Al + Fe2O3 >>> Al2O3 + 2Fe2+
Single replacement