Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
2401	Balance	MnO_2+C→Mn+CO_2	$M n O_{2} + C \to M n + C O_{2}$
2402	Balance	MnO_2+Al→Al_2O_3+Mn	$M n O_{2} + A l \to A l_{2} O_{3} + M n$
2403	Balance	Mo+Nb→MoNb	$M o + N b \to M o N b$
2404	Balance	CH_4+Cl_2→CH_3Cl+CCl_4	$C H_{4} + C l_{2} \to C H_{3} C l + C C l_{4}$
2405	Balance	molecular net ionic equations NaOH(aq)=Fe(NO_3)_3(aq)	molecular net ionic equations $N a O H (a q) = F e {(N O_{3})}_{3} (a q)$
2406	Balance	N_2+F_2→NF_3	$N_{2} + F_{2} \to N F_{3}$
2407	Balance	n=m	$n = m$
2408	Balance	N_2H_4+O_2→N_2+H_2O	$N_{2} H_{4} + O_{2} \to N_{2} + H_{2} O$
2409	Balance	N_2O+H_2O_2→N_2O_4+H_2O	$N_{2} O + H_{2} O_{2} \to N_{2} O_{4} + H_{2} O$
2410	Balance	Cu(NO_3)_2+NAOH→NaNO_3+Cu(OH)_2	$C u {(N O_{3})}_{2} + N A O H \to N a N O_{3} + C u {(O H)}_{2}$
2411	Balance	CH_4+O_2→CH_3OH	$C H_{4} + O_{2} \to C H_{3} O H$
2412	Balance	N_2+O_2→N_2O	$N_{2} + O_{2} \to N_{2} O$
2413	Balance	N_2+O_2→NO	$N_{2} + O_{2} \to N O$
2414	Balance	Mg+HCl→MgCl_3H	$M g + H C l \to M g C l_{3} H$
2415	Balance	N_2+3H→2NH_3	$N_{2} + 3 H \to 2 N H_{3}$
2416	Balance	N_2H_8CO_3→NH_3+CO_2+H_2O	$N_{2} H_{8} C O_{3} \to N H_{3} + C O_{2} + H_{2} O$
2417	Balance	N_2O_3=N_3O_2+O	$N_{2} O_{3} = N_{3} O_{2} + O$
2418	Balance	N_2O_5→NO_2+O_2	$N_{2} O_{5} \to N O_{2} + O_{2}$
2419	Balance	NA_2SO_4+CaCL_2→CaSO_4+NaCL	$N A_{2} S O_{4} + C a C L_{2} \to C a S O_{4} + N a C L$
2420	Balance	Na_3PO_4+Ba(NO_3)(2)→NaNO_3+Ba_3(PO_4)(2)	$N a_{3} P O_{4} + B a (N O_{3}) (2) \to N a N O_{3} + B a_{3} (P O_{4}) (2)$
2421	Balance	Na_3PO_4+koh→NaOH+K_3PO_4	$N a_{3} P O_{4} + k o h \to N a O H + K_{3} P O_{4}$
2422	Balance	Na+AlCl→NaCl+Al	$N a + A l C l \to N a C l + A l$
2423	Balance	Na+Br→NaBr	$N a + B r \to N a B r$
2424	Balance	Na+Br_2→NaBr_3	$N a + B r_{2} \to N a B r_{3}$
2425	Balance	Na→Bh	$N a \to B h$
2426	Balance	Na_2CO_3+AgNO_3→Ag_2CO_3+2NaNO_3	$N a_{2} C O_{3} + A g N O_{3} \to A g_{2} C O_{3} + 2 N a N O_{3}$
2427	Balance	N_2+H_2→2NH	$N_{2} + H_{2} \to 2 N H$
2428	Balance	n_2+h_2=o_2	$n_{2} + h_{2} = o_{2}$
2429	Balance	Na+Cl_2=NaCl	$N a + C l_{2} = N a C l$
2430	Balance	Na+H_2O→NaH+O_2	$N a + H_{2} O \to N a H + O_{2}$
2431	Balance	KF+BaBr_2→KBr+BaF_2	$K F + B a B r_{2} \to K B r + B a F_{2}$
2432	Balance	KHSO_4→K_2S_2O_7+H_2O	$K H S O_{4} \to K_{2} S_{2} O_{7} + H_{2} O$
2433	Balance	KI+K_2Cr_2O_7→K_2CrO_4+Cr_2O_3+I_2	$K I + K_{2} C r_{2} O_{7} \to K_{2} C r O_{4} + C r_{2} O_{3} + I_{2}$
2434	Balance	KI+Pb(NO_3)_2→KNO_3+PbI_2	$K I + P b {(N O_{3})}_{2} \to K N O_{3} + P b I_{2}$
2435	Balance	KI+Pb(NO_3)_2→PbI_2+KNO_3	$K I + P b {(N O_{3})}_{2} \to P b I_{2} + K N O_{3}$
2436	Balance	KI+Pb_2(NO_3)→Pb_2I+K(NO_3)	$K I + P b_{2} (N O_{3}) \to P b_{2} I + K (N O_{3})$
2437	Balance	KIO_3+KI+H_2SO_4→K_2SO_4+I_2+H_2O	$K I O_{3} + K I + H_{2} S O_{4} \to K_{2} S O_{4} + I_{2} + H_{2} O$
2438	Balance	KMnO_4+HBr→MnBr_2+KBr+H_2O+Br_2	$K M n O_{4} + H B r \to M n B r_{2} + K B r + H_{2} O + B r_{2}$
2439	Balance	KMnO_4+Zn+HCl→MnCl_2+KCl+ZnCl_2+H_2O	$K M n O_{4} + Z n + H C l \to M n C l_{2} + K C l + Z n C l_{2} + H_{2} O$
2440	Balance	KMnO_4+FeSO_4→MnSO_4+K_2SO_4+Fe(SO_4)_3+H_2O	$K M n O_{4} + F e S O_{4} \to M n S O_{4} + K_{2} S O_{4} + F e {(S O_{4})}_{3} + H_{2} O$
2441	Balance	KMnO_4+H_2SO_4+FeSO_4=Fe_2(SO_4)_3+K_2SO_4+H_2O+MnSO_4	$K M n O_{4} + H_{2} S O_{4} + F e S O_{4} = F e_{2} {(S O_{4})}_{3} + K_{2} S O_{4} + H_{2} O + M n S O_{4}$
2442	Balance	KMnO_4+H_2SO_4+H_2O_2→KHSO_4+MnSO_4+O_2+H_2O	$K M n O_{4} + H_{2} S O_{4} + H_{2} O_{2} \to K H S O_{4} + M n S O_{4} + O_{2} + H_{2} O$
2443	Balance	KMnO_4+HCl→KCl+MnCl_2+H_2O+Cl_2	$K M n O_{4} + H C l \to K C l + M n C l_{2} + H_{2} O + C l_{2}$
2444	Balance	KMnO_4+HCl=KCl+MnCl_2+H_2O+Cl_2	$K M n O_{4} + H C l = K C l + M n C l_{2} + H_{2} O + C l_{2}$
2445	Balance	KMnO_4+KBr+H_2SO_4=K_2SO_4+MnSO_4+H_2O+Br_2	$K M n O_{4} + K B r + H_{2} S O_{4} = K_{2} S O_{4} + M n S O_{4} + H_{2} O + B r_{2}$
2446	Balance	KMnO_4+ZnCl_2→KCl+Zn(MnO_4)_2	$K M n O_{4} + Z n C l_{2} \to K C l + Z n {(M n O_{4})}_{2}$
2447	Balance	KMnO_4=K_2MnO_4+MnO_2+O_2	$K M n O_{4} = K_{2} M n O_{4} + M n O_{2} + O_{2}$
2448	Balance	kn+mp=qMg	$k n + m p = q M g$
2449	Balance	KNO_3+BaCl_2→KCl+Ba(NO_3)	$K N O_{3} + B a C l_{2} \to K C l + B a (N O_{3})$
2450	Balance	KNO_3+CaCo_3→Ca(NO_3)_2+K_2CO_3	$K N O_{3} + C a C o_{3} \to C a {(N O_{3})}_{2} + K_{2} C O_{3}$
2451	Balance	KNO_3+C_12H_22O_11+H_2O→K+CO_2+H_2O	$K N O_{3} + C_{12} H_{22} O_{11} + H_{2} O \to K + C O_{2} + H_{2} O$
2452	Balance	KNO_3+H_2CO_3→K_2CO_3+HNO_3	$K N O_{3} + H_{2} C O_{3} \to K_{2} C O_{3} + H N O_{3}$
2453	Balance	KNO_3=KNO_2+O_2	$K N O_{3} = K N O_{2} + O_{2}$
2454	Balance	KO_2+H_2O→KOH+O_2+H_2O_2	$K O_{2} + H_{2} O \to K O H + O_{2} + H_{2} O_{2}$
2455	Balance	KOH+H_2SO_4→K_2SO_4+H_2O	$K O H + H_{2} S O_{4} \to K_{2} S O_{4} + H_{2} O$
2456	Balance	KOH+H_3PO_4→HOH+KPO_4	$K O H + H_{3} P O_{4} \to H O H + K P O_{4}$
2457	Balance	K_4Fe(CN)_6+H_2SO_4+H_2O→K_2SO_4+FeSO_4+(NH_4)_2SO_4+CO	$K_{4} F e {(C N)}_{6} + H_{2} S O_{4} + H_{2} O \to K_{2} S O_{4} + F e S O_{4} + {(N H_{4})}_{2} S O_{4} + C O$
2458	Balance	K_4Fe(CN)_6+H_2SO_4+H_2O=K_2SO_4+FeSO_4+(NH_4)_2SO_4+CO	$K_{4} F e {(C N)}_{6} + H_{2} S O_{4} + H_{2} O = K_{2} S O_{4} + F e S O_{4} + {(N H_{4})}_{2} S O_{4} + C O$
2459	Balance	KAsO_2+KMnO_4+H_2O→KAsO_3+MnO_2+K(OH)	$K A s O_{2} + K M n O_{4} + H_{2} O \to K A s O_{3} + M n O_{2} + K (O H)$
2460	Balance	KBr+H_2SO_4→K_2SO_4+Br_2+SO_2+H_2O	$K B r + H_{2} S O_{4} \to K_{2} S O_{4} + B r_{2} + S O_{2} + H_{2} O$
2461	Balance	NH_3(g)+O_2(g)→N_2(g)+H_2O(g)	$N H_{3} (g) + O_{2} (g) \to N_{2} (g) + H_{2} O (g)$
2462	Balance	KBrO_3→KBr+O_2	$K B r O_{3} \to K B r + O_{2}$
2463	Balance	KBrO_3+KI+HBr→KBr+I_2+H_2O	$K B r O_{3} + K I + H B r \to K B r + I_{2} + H_{2} O$
2464	Balance	HNO_3+Ca(OH)_2→Ca(NO_3)_2+H_2O	$H N O_{3} + C a {(O H)}_{2} \to C a {(N O_{3})}_{2} + H_{2} O$
2465	Balance	KCI+F_2→KF+CI_2	$K C I + F_{2} \to K F + C I_{2}$
2466	Balance	K+H_2O→H_2+KOH	$K + H_{2} O \to H_{2} + K O H$
2467	Balance	k+cacl_2→kcl+ca	$k + c a c l_{2} \to k c l + c a$
2468	Balance	K+Cl→KCl	$K + C l \to K C l$
2469	Balance	K+O→OK	$K + O \to O K$
2470	Balance	K+S→K_2S	$K + S \to K_{2} S$
2471	Balance	FeSO_4+HBrO_2+HCl→Fe_2(SO_4)_3+FeCl_3+HBr+H_2O	$F e S O_{4} + H B r O_{2} + H C l \to F e_{2} {(S O_{4})}_{3} + F e C l_{3} + H B r + H_{2} O$
2472	Balance	Sn+Cl_2→SnCl_4	$S n + C l_{2} \to S n C l_{4}$
2473	Balance	Sr+P_4→Sr_3P_2	$S r + P_{4} \to S r_{3} P_{2}$
2474	Balance	K_2Cl+F=KF+Cl	$K_{2} C l + F = K F + C l$
2475	Balance	K_2CO_3→KOH	$K_{2} C O_{3} \to K O H$
2476	Balance	K_2CO_3+H_3PO_4→H_2O+CO_2+K_3PO_4	$K_{2} C O_{3} + H_{3} P O_{4} \to H_{2} O + C O_{2} + K_{3} P O_{4}$
2477	Balance	K_2CO_3+HCI→H_2O+CO_2+KCI	$K_{2} C O_{3} + H C I \to H_{2} O + C O_{2} + K C I$
2478	Balance	K_2O+H_2O=KOH	$K_{2} O + H_{2} O = K O H$
2479	Balance	Pb(NO_3)_2+K_2CO_3→PbCO_3+KNO_3	$P b {(N O_{3})}_{2} + K_{2} C O_{3} \to P b C O_{3} + K N O_{3}$
2480	Balance	K_2O+H_2O→KO	$K_{2} O + H_{2} O \to K O$
2481	Balance	K_2S+Ba(NO_3)_2→BaS+KNO_3	$K_{2} S + B a {(N O_{3})}_{2} \to B a S + K N O_{3}$
2482	Balance	K_2S+O_2→SO_2+K_2O	$K_{2} S + O_{2} \to S O_{2} + K_{2} O$
2483	Balance	K_2SO_4(aq)+Ba(NO_3)_2(aq)→2KNO_3(aq)+BaSO_4(s)	$K_{2} S O_{4} (a q) + B a {(N O_{3})}_{2} (a q) \to 2 K N O_{3} (a q) + B a S O_{4} (s)$
2484	Balance	K_2SO_4+BaCl_2=BaSO_4+KCl	$K_{2} S O_{4} + B a C l_{2} = B a S O_{4} + K C l$
2485	Balance	K_3P+MgI_2→KI+MgP_2	$K_{3} P + M g I_{2} \to K I + M g P_{2}$
2486	Balance	K_3POCl_4+HCl→KCl+H_3PO_4	$K_{3} P O C l_{4} + H C l \to K C l + H_{3} P O_{4}$
2487	Balance	LiCl+BR_2(g)→LiBr+Cl_2	$L i C l + B R_{2} (g) \to L i B r + C l_{2}$
2488	Balance	LiOH+C_2O→Li_2CO_3+H_20	$L i O H + C_{2} O \to L i_{2} C O_{3} + H_{20}$
2489	Balance	LiOH+CO_2→Li_2CO_3+H_20	$L i O H + C O_{2} \to L i_{2} C O_{3} + H_{20}$
2490	Balance	LiOH+HBr→LiBr+H_2O	$L i O H + H B r \to L i B r + H_{2} O$
2491	Balance	HCl+KOH→KCl+H_2O	$H C l + K O H \to K C l + H_{2} O$
2492	Balance	Mg+H_2O→Mg(OH)_2+H_2	$M g + H_{2} O \to M g {(O H)}_{2} + H_{2}$
2493	Balance	natural log of 7N=x	$\ln (7 N) = x$
2494	Balance	NaOH+CuNO_2=CuOH_2+NaOH+H_2O	$N a O H + C u N O_{2} = C u O H_{2} + N a O H + H_{2} O$
2495	Balance	log of x=-0.0083	$\log (x) = - 0.0083$
2496	Balance	M(OH)+Fe_2Cl_3→Fe(OH)_3+MCl	$M (O H) + F e_{2} C l_{3} \to F e {(O H)}_{3} + M C l$
2497	Balance	Cu+HNO_3→Cu(NO_3)_2+NO+H_2O	$C u + H N O_{3} \to C u {(N O_{3})}_{2} + N O + H_{2} O$
2498	Balance	CuFeS_2+O_2→CuO+FeO+SO_2	$C u F e S_{2} + O_{2} \to C u O + F e O + S O_{2}$
2499	Balance	N+O→NO	$N + O \to N O$
2500	Balance	m_1v_1=m_2v_2	$m_{1} v_{1} = m_{2} v_{2}$