1.which equation is balanced?
a. 2NaCl+H2SO4 ---> HCL+NaSO4
b. NH3+H2O ---> 2NH4OH
c. KOH+H2SO4 ---> KHSO4+H2O
d. 2Na+S ---> 2NaS
2.which group of chemical compounds is composed of entirely organic compounds?
a. C2H4O, CH2O, CaSO4, C3H5(OH)3
b. C6H6, C2H5OH, C6H5CH3, C3H5(NO3)3
c. C2H2, CH4, CaCl2, CaCN2
d. Ch3OCH3, Ca3(PO4)2, CO2, H2CO3
3.In the chemical equation :
Zn+2HCL --> ZnCl2+H2 the reactants are...
a.zinc chloride & hydrogen
b.zinc & hydrogen carbonate
c.zinc chlorate & water
d.zinc & hydrochloric acid
4.the valence of aluminum is +3 & the valence of chlorine is -1 what is the formula for aluminum chloride?
a.Al3Cl
b.AlCl3
c.ClAl3
d.Cl3Al
5.The names of the compounds:
FeS, NaCl, NaOH & Pb(CN)2 all end in the suffix
a.-ide
b.-ite
c.-ic
d.-ate
6.Which is the balanced form of this equation
CO2+C --->CO
a.2CO2+C ---> CO
b.CO2+C --->2CO
c.CO2+C2 --->CO
d.CO2+C --->C2O
7.Which represents aldehyde
a.C6H10O5
b.C2H4O
c.C2H5OH
d,CH3COOH
2007-05-29 09:11:37 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
1 is C
i'm not sure of 2
3 is D
4 is B
5 is A
6 is B
i'm not sure of 7
hope this helped!
2007-05-29 09:17:06 · answer #1 · answered by Anonymous · 0⤊ 0⤋
cbdbabb
2007-05-29 16:18:55 · answer #2 · answered by Gervald F 7 · 0⤊ 0⤋
d
a
d
b
a
b
?
2007-05-29 16:17:34 · answer #3 · answered by handsome_one09 2 · 0⤊ 0⤋