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classify the reactions below as synthesis, decomposition, single replacement(cationic or anionic) or double replacement
1. 2H-2 + O2 --> 2H-2O
2. 2H-2O --> 2H 2 + O-2
3. Zn + H-2SO-4 --> ZnSO-4 + H-2
4. 2CO + O-2 --> 2CO-2
5. 2HgO --> 2Hg + O-2
6. 2KBr + CI-2 --> 2KCI + Br-2
7. CaO + H-2O --> Ca(OG)-2
8.AgNO-2 + NaCI --> AgCI + NaNO-3
9. 2H-2O-2 --> 2H-2O + O-2
10. Ca(OH)-2 + H-2SO-4 --> CaSO-4 + 2H-2O
If 0.20g of gas occupies 400 mL at 30 degrees celsius and 700 mm Hg of pressure, what is the molar mass of the gas?
how many atoms are on the surface of the particle? What fraction of the gold atoms in the particle are on the surface?
Calculate the pH of the solution that results upon mixing 20.0 mL of a 0.200 M HCl with 25 mL of.
If 3.93 g of sodium borohydride contains 2.5 × 10^23 H atoms, how many moles of H are present in 27 cm3 of sodium borohydride (of density 1.074 g/cm3)?Answer in units of mol
Explain the following observations. 1. Aziridines, compounds that contain nitrogen in a three-membered ring, undergo pyramidal inversion much more slowly than do other alkylamines.
How many moles of I3-are produced if 25.00 mL of 0.0200 M KIO3 is mixed with 3.00 grams
A mixture of water and graphite is heated to 600 K. When the system comes to equilibrium it contains 0.13 mol of H2, 0.13 mol CO, 0.43 mol of H2O and some graphite
water has a molar heat of vaporization =40.79 kJ/mol, determine how many grams of water could be vaporized by 0.806 kilo Joules heat? Express your answer in units of g
A copper wire (density = 8.96 g/cm3) has a diameter of 0.27 mm. If a sample of this copper wire has a mass of 35 g, how long is the wire?
A sample of vanadium haveing 5.67 grams of mass upon heating combined with oxegen of 4.45gramsto make vanadium oxide. Determine the emperical formula for this compound?
A solution is prepared by dissolving 246 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
Calculate the change in entropy (deltaS) when one mole of diamond is heated from a temperature of 0 K to 400 K at a constant pressure of 1 bar
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