What is the chemical formula of copper in this picture?A. Cu2OH(s)

B. Cu(OH) 2(s)

C. Cu(OH) 2(aq)

D. CuOH(s)

• Name the type of reaction described

• Zn(s) + CuSO4(aq) > ZnSO4(aq) + Cu(s)

A. Combustion

B. Synthesis

C. Double Replacement

D. Single Replacement

• Name the type of reaction described

MnSO4(aq) + Al2S3 (aq) > MnS(aq) +

Al2(SO4)3 (s)

A.CombustionB.SynthesisC.Double ReplacementD.Single Replacement

• Name the type of reaction described

C7H16 + 5O2 7CO2 + 8H2O

A.Combustion

B.Synthesis

C.Double Replacement

D.Single Replacement

• Name the type of reaction described

2Mn(s)+ O2(g) 2MnO(s)

A.Combustion

B.Synthesis

C.Double Replacement

D.Single Replacement

• Which product of the following reaction will produce a precipitate?

FeCl3(aq) + NaOH(aq)

A. FeCl3(s)B. NaOH(s)C. NaCl(s)D. Fe(OH)3 (s)

• Balance the following equation

Al2(SO4)3 + ___Cu(NO3)2 ___CuSO4 + ___Al(NO3)3

The number 4.6300 X 103 has how many significant digits?

A. 3 B. 4 C. 5 D. 6

• When 81.3 cm is subtracted from 42.3 meters, the answer that has the correct number of significant digits is:

• A. 4148.7 cm B. 4149 cmC. 41.49 m

The correct name of the compound P2O5 is :

A. diphosphorus oxide B. phosphorus pentoxide;

C. phosphorus(V)oxide  D. diphosphorus pentoxide

• The correct name of the compound MnO2 is:

A. manganese(II)oxide B. manganese dioxide 

C. manganese(IV)oxide D. manganese oxide

• How many moles are present in 608 grams of Na2CO3?

A.1.00 moles B. 5.74 moles; C. 608 moles 

D. 3.45 X 1024 moles

When 50.0 grams of manganese oxide were decomposed, it was found to have 34.8 grams of manganese and 15.2 grams of oxygen. What is the empirical formula of this compound?

A. MnO; B. MnO2 C. Mn2O3 D. Mn3O2

How many moles of H2SO4 are contained in 3.5 L of a 6.5 M solution?

A. 1.86 moles; B. 3.5 moles  C. 6.5 moles 

D. 23 moles

• The following data was obtained in the copper lab.

• Mass of copper initially: 0.51 g• Mass of empty beaker: 35.70 g• Mass of beaker and copper ppt: 36.16 g• Calculate the percent yield in this

experiment. • Calculate the percent error in this experiment

Write the net ionic equation for the following reaction

Lead (II) nitrate solution is mixed with sodium chloride solution