Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
2201	Balance	Pb(SO_4)_2+2Zn→2ZnSO_4+Pb	$P b {(S O_{4})}_{2} + 2 Z n \to 2 Z n S O_{4} + P b$
2202	Balance	pb(so_4)_2+cr(no_3)_3→cr_2(so_4)_3+pb(no_3)_4	$p b {(s o_{4})}_{2} + c r {(n o_{3})}_{3} \to c r_{2} {(s o_{4})}_{3} + p b {(n o_{3})}_{4}$
2203	Balance	Pb+Tl→Tl	$P b + T l \to T l$
2204	Balance	Pb_2+HgBr_2→PbBr+Hg	$P b_{2} + H g B r_{2} \to P b B r + H g$
2205	Balance	PbCrO+HCl→PbCl_2+CrCl_3+Cl_2+H_2O	$P b C r O + H C l \to P b C l_{2} + C r C l_{3} + C l_{2} + H_{2} O$
2206	Balance	PbO_2+Pb+H_2SO_4→PbSO_4+H_2O	$P b O_{2} + P b + H_{2} S O_{4} \to P b S O_{4} + H_{2} O$
2207	Balance	PbO_2→Pb+O_2	$P b O_{2} \to P b + O_{2}$
2208	Balance	PbO_2=PbO+O_2	$P b O_{2} = P b O + O_{2}$
2209	Balance	PbS(s)+O_2(g)→PbO(s)+SO_2(g)	$P b S (s) + O_{2} (g) \to P b O (s) + S O_{2} (g)$
2210	Balance	PbS+Cu_2S+HNO_3→Pb(NO_3)_2+NO+S+(H(2O))	$P b S + C u_{2} S + H N O_{3} \to P b {(N O_{3})}_{2} + N O + S + (H (2 O))$
2211	Balance	PCI_3+H_2O→P(OH)_3+HCI	$P C I_{3} + H_{2} O \to P {(O H)}_{3} + H C I$
2212	Balance	PCl_3+Cl_2→PCl_5	$P C l_{3} + C l_{2} \to P C l_{5}$
2213	Balance	PCl_5+H_2O→HCl+H_3PO_4	$P C l_{5} + H_{2} O \to H C l + H_{3} P O_{4}$
2214	Balance	PH_3+N_2O→P_4O_10+H_2O+N_2	$P H_{3} + N_{2} O \to P_{4} O_{10} + H_{2} O + N_{2}$
2215	Balance	4NH_3+3O_2→2N_2+6H_2O	$4 N H_{3} + 3 O_{2} \to 2 N_{2} + 6 H_{2} O$
2216	Balance	AgNO_3+LiOH→AgOH+LiOH_3	$A g N O_{3} + L i O H \to A g O H + L i O H_{3}$
2217	Balance	Al(OH)_3+H_2CO_3=Al_2(CO_3)_3+H_2O	$A l {(O H)}_{3} + H_{2} C O_{3} = A l_{2} {(C O_{3})}_{3} + H_{2} O$
2218	Balance	2N+2H_2O→2NaOH+H_2	$2 N + 2 H_{2} O \to 2 N a O H + H_{2}$
2219	Balance	Pt+HNO_3+HCl→H_2PtCl_6+NO+H_2O	$P t + H N O_{3} + H C l \to H_{2} P t C l_{6} + N O + H_{2} O$
2220	Balance	PtCl_4+XeF_2→PtF_6+ClF+Xe	$P t C l_{4} + X e F_{2} \to P t F_{6} + C l F + X e$
2221	Balance	Pu+Nb→PuNb	$P u + N b \to P u N b$
2222	Balance	Re→NbV	$R e \to N b V$
2223	Balance	Re+Be→BeRe	$R e + B e \to B e R e$
2224	Balance	Rh+Sn→Ge	$R h + S n \to G e$
2225	Balance	Ru+2Rb=Rb	$R u + 2 R b = R b$
2226	Balance	S_8+F_2=SF_6	$S_{8} + F_{2} = S F_{6}$
2227	Balance	S_8+O_2→O_2	$S_{8} + O_{2} \to O_{2}$
2228	Balance	2Cl_2+2H_2O→4HCl+O_2	$2 C l_{2} + 2 H_{2} O \to 4 H C l + O_{2}$
2229	Balance	2HHO+HHOO→3HHO+OO	$2 H H O + H H O O \to 3 H H O + O O$
2230	Balance	2HNO_3+6HI→2NO+3I_2+4H_2O	$2 H N O_{3} + 6 H I \to 2 N O + 3 I_{2} + 4 H_{2} O$
2231	Balance	2h_2+o_2=2H_2o	$2 h_{2} + o_{2} = 2 H_{2} o$
2232	Balance	Rb+H_2O→RbOH+H_2	$R b + H_{2} O \to R b O H + H_{2}$
2233	Balance	Rb+RbNO_3→Rb_2O+N_2	$R b + R b N O_{3} \to R b_{2} O + N_{2}$
2234	Balance	Rb+S_8→Rb_2S	$R b + S_{8} \to R b_{2} S$
2235	Balance	Rb_2S+SrCl_2→RbCl+SrS	$R b_{2} S + S r C l_{2} \to R b C l + S r S$
2236	Balance	q=54.1843	$q = 5 \cdot 4.184 \cdot 3$
2237	Balance	2mg(s)+o(g)→2 mgo (s)	$2 mg (s) + o (g) \to 2$ mgo $(s)$
2238	Balance	pv=nrtr	$p v = n r t r$
2239	Balance	NaBiO_3+MnSO_4+HNO_3→HMnO_4+BI(NO_3)_3+NaNO_3+Na_2SO_4+H_2O	$N a B i O_{3} + M n S O_{4} + H N O_{3} \to H M n O_{4} + B I {(N O_{3})}_{3} + N a N O_{3} + N a_{2} S O_{4} + H_{2} O$
2240	Balance	KClO_3→KClO+O_2	$K C l O_{3} \to K C l O + O_{2}$
2241	Balance	Al(OH)_3+HBr→AlBr_3+H_2O	$A l {(O H)}_{3} + H B r \to A l B r_{3} + H_{2} O$
2242	Balance	C_6H_12O_6→C_2H_5OH+CO_2	$C_{6} H_{12} O_{6} \to C_{2} H_{5} O H + C O_{2}$
2243	Balance	C_4H_10O+O_2→CO_2+H_2O	$C_{4} H_{10} O + O_{2} \to C O_{2} + H_{2} O$
2244	Balance	C_6H_12O_6(s)+O(s)(g)→CO_2(g)+H_2O(l)	$C_{6} H_{12} O_{6} (s) + O (s) (g) \to C O_{2} (g) + H_{2} O (l)$
2245	Balance	P_2I_4+P_4+H_2O→PH_4I+H_3PO_4	$P_{2} I_{4} + P_{4} + H_{2} O \to P H_{4} I + H_{3} P O_{4}$
2246	Balance	Ca_3(Po_4)_2+SiO_2+C→CaSiO_3+CO+P_4	$C a_{3} {(P o_{4})}_{2} + S i O_{2} + C \to C a S i O_{3} + C O + P_{4}$
2247	Balance	P_4+5O_2→P_4O_10	$P_{4} + 5 O_{2} \to P_{4} O_{10}$
2248	Balance	p_4+o_2→p_4o_10	$p_{4} + o_{2} \to p_{4} o_{10}$
2249	Balance	P_4+O_2→PO	$P_{4} + O_{2} \to P O$
2250	Balance	P+2O_2→PO_2	$P + 2 O_{2} \to P O_{2}$
2251	Find the Concentration	the (number)(of)(mol) in (850.5g)(of)(zinc)	the $(n u m b e r) (o f) (m o l e s)$ in $(850.5 g) (o f) (z i n c)$
2252	Balance	NH_3+O_2→NO_2+H_2O	$N H_{3} + O_{2} \to N O_{2} + H_{2} O$
2253	Balance	NH_3+O_2=N_2+H_2O	$N H_{3} + O_{2} = N_{2} + H_{2} O$
2254	Balance	NH_4Cl+AlPO_4→(NH_4)_3PO_4+AlCl_3	$N H_{4} C l + A l P O_{4} \to {(N H_{4})}_{3} P O_{4} + A l C l_{3}$
2255	Balance	NH_4Cl+Ca(OH)_2→CaCl_2+NH+H_2O	$N H_{4} C l + C a {(O H)}_{2} \to C a C l_{2} + N H + H_{2} O$
2256	Balance	NH_4Cl+Ca(OH)_2→NH_3+H_2O+CaCl_2	$N H_{4} C l + C a {(O H)}_{2} \to N H_{3} + H_{2} O + C a C l_{2}$
2257	Balance	NH_4Cl+Pb(NO_3)_2→NH_4(NO_3)_2+PbCl	$N H_{4} C l + P b {(N O_{3})}_{2} \to N H_{4} {(N O_{3})}_{2} + P b C l$
2258	Balance	NH_4NO_2→N_2+H_2O	$N H_{4} N O_{2} \to N_{2} + H_{2} O$
2259	Balance	P+O_2=P_4O_10	$P + O_{2} = P_{4} O_{10}$
2260	Balance	Al_4C_3+H_2O=CH_4+Al(OH)_3	$A l_{4} C_{3} + H_{2} O = C H_{4} + A l {(O H)}_{3}$
2261	Balance	P_1V_1=P_2V_2	$P_{1} V_{1} = P_{2} V_{2}$
2262	Balance	P_2H_4→PH_3+P_4	$P_{2} H_{4} \to P H_{3} + P_{4}$
2263	Balance	P_2O_5+H_2O→H_3PO_4	$P_{2} O_{5} + H_{2} O \to H_{3} P O_{4}$
2264	Balance	AlBr_3+K_2SO_4→KBr+Al(SO_4)_3	$A l B r_{3} + K_{2} S O_{4} \to K B r + A l {(S O_{4})}_{3}$
2265	Balance	NH_4OH→NH_3+H_2O	$N H_{4} O H \to N H_{3} + H_{2} O$
2266	Balance	NH_4OH+FeCl_3→FeOH_3+NH_4Cl	$N H_{4} O H + F e C l_{3} \to F e O H_{3} + N H_{4} C l$
2267	Balance	NH_4OH+H_2SO_4→NH_4(SO_4)+H_2O	$N H_{4} O H + H_{2} S O_{4} \to N H_{4} (S O_{4}) + H_{2} O$
2268	Balance	P+O_2→P_2O_3	$P + O_{2} \to P_{2} O_{3}$
2269	Balance	P_4O_10+H_2O→H_4P_2O_7	$P_{4} O_{10} + H_{2} O \to H_{4} P_{2} O_{7}$
2270	Balance	P_4O_10+Mg(OH)_2→Mg_3(PO_4)_2+H_2O	$P_{4} O_{10} + M g {(O H)}_{2} \to M g_{3} {(P O_{4})}_{2} + H_{2} O$
2271	Balance	Pb(ClO_4)_2+NaI→PbI_2+NaClO_4	$P b {(C l O_{4})}_{2} + N a I \to P b I_{2} + N a C l O_{4}$
2272	Balance	Pb(CrO_4)_2+Mg→MgCrO_4+Pb	$P b {(C r O_{4})}_{2} + M g \to M g C r O_{4} + P b$
2273	Balance	Pb(NO)→PbO+NO	$P b (N O) \to P b O + N O$
2274	Balance	Pb(NO_3)_2+KI→PbI_2+KNO_3	$P b {(N O_{3})}_{2} + K I \to P b I_{2} + K N O_{3}$
2275	Balance	Pb(NO_3)_2→PbO+NO_2+O_2	$P b {(N O_{3})}_{2} \to P b O + N O_{2} + O_{2}$
2276	Balance	Pb(NO_3)_2+Fe→Fe(NO_3)_3+Pb	$P b {(N O_{3})}_{2} + F e \to F e {(N O_{3})}_{3} + P b$
2277	Balance	Pb(NO_3)_2+Ki→PbI_2+KNO_3	$P b {(N O_{3})}_{2} + K i \to P b I_{2} + K N O_{3}$
2278	Balance	Pb(NO_3)_2+Na_3AsO_4→Pb_3(AsO_4)_2+NaNO_3	$P b {(N O_{3})}_{2} + N a_{3} A s O_{4} \to P b_{3} {(A s O_{4})}_{2} + N a N O_{3}$
2279	Balance	Pb(NO_3)_2+Nal→Pbl_2+NaNO_3	$P b {(N O_{3})}_{2} + N a l \to P b l_{2} + N a N O_{3}$
2280	Balance	Pb(NO_3)_2+NH_4Cl→PbCl_2+NH_4(NO_3)	$P b {(N O_{3})}_{2} + N H_{4} C l \to P b C l_{2} + N H_{4} (N O_{3})$
2281	Balance	H+Cl→HCl	$H + C l \to H C l$
2282	Balance	NaOH+(CaNO_6)→NaNO_3+Ca(OH_2)	$N a O H + (C a N O_{6}) \to N a N O_{3} + C a (O H_{2})$
2283	Balance	NaOH+CaCl→V	$N a O H + C a C l \to V$
2284	Balance	NaOH+CO_2→Na_2cO_3+H_2O	$N a O H + C O_{2} \to N a_{2} c O_{3} + H_{2} O$
2285	Balance	NaOH+FeCl_3→NaCl+Fe(OH)_3	$N a O H + F e C l_{3} \to N a C l + F e {(O H)}_{3}$
2286	Balance	NaOH+FeSO_4→Na_2SO_4+Fe(OH)_2	$N a O H + F e S O_{4} \to N a_{2} S O_{4} + F e {(O H)}_{2}$
2287	Balance	NaoH+h_2o+p_4=nah_2o_2+ph_3
2288	Balance	NaOH+H_2SO_4→H_2O+NaSO_4	$N a O H + H_{2} S O_{4} \to H_{2} O + N a S O_{4}$
2289	Balance	NaCN+H_2SO_4→Na_2SO_4+HCN	$N a C N + H_{2} S O_{4} \to N a_{2} S O_{4} + H C N$
2290	Balance	NaCO_3+HCl→NaCl+H_2O+CO_2	$N a C O_{3} + H C l \to N a C l + H_{2} O + C O_{2}$
2291	Balance	NaF+Br_2→NaBr+F_2	$N a F + B r_{2} \to N a B r + F_{2}$
2292	Balance	NaCl+F_2→2NaF+Cl_2	$N a C l + F_{2} \to 2 N a F + C l_{2}$
2293	Balance	K+N_2=K_3N	$K + N_{2} = K_{3} N$
2294	Balance	NaHCO_3→Na_2CO_3+H_2O+CO_2	$N a H C O_{3} \to N a_{2} C O_{3} + H_{2} O + C O_{2}$
2295	Balance	NaHCO_3+HC_2H_3OO_2→CO_2+H_2O+NaC_2H_3O_2	$N a H C O_{3} + H C_{2} H_{3} O O_{2} \to C O_{2} + H_{2} O + N a C_{2} H_{3} O_{2}$
2296	Balance	NaHCO_3(s)→Na_2CO_3(s)+CO_2(g)+H_2O(g)	$N a H C O_{3} (s) \to N a_{2} C O_{3} (s) + C O_{2} (g) + H_{2} O (g)$
2297	Balance	NaHCO_3→NaCO_3+CO_2+H_2O	$N a H C O_{3} \to N a C O_{3} + C O_{2} + H_{2} O$
2298	Balance	NaHCO_3→NaOH+CO_2	$N a H C O_{3} \to N a O H + C O_{2}$
2299	Balance	NaHCO_3+H_2SO_4→Na_2SO_4+H_2o+CO_2	$N a H C O_{3} + H_{2} S O_{4} \to N a_{2} S O_{4} + H_{2} o + C O_{2}$
2300	Balance	NaHCO_3+HC_2H_3O_2→NaC_2H_3O_2+H_2O+CO_2	$N a H C O_{3} + H C_{2} H_{3} O_{2} \to N a C_{2} H_{3} O_{2} + H_{2} O + C O_{2}$