Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
2001	Balance	Fe+H_2SO_4→Fe_2(SO_4)_3+SO_2+H_2O	$F e + H_{2} S O_{4} \to F e_{2} {(S O_{4})}_{3} + S O_{2} + H_{2} O$
2002	Balance	MnO_2+HCl→MnCl_2+H_2O+Cl_2	$M n O_{2} + H C l \to M n C l_{2} + H_{2} O + C l_{2}$
2003	Balance	MnO_2+KClO_3+KOH→KMnO_4+KCl+H_2O	$M n O_{2} + K C l O_{3} + K O H \to K M n O_{4} + K C l + H_{2} O$
2004	Balance	nahco→na_2co_3+co_2+h_2*0	$n a h c o \to n a_{2} c o_{3} + c o_{2} + h_{2} \cdot 0$
2005	Balance	( log base 2 of 64) =	$(\log_{2} (64)) =$
2006	Balance	( log base 3 of x+1)-( log base 3 of x-2)=2	$(\log_{3} (x + 1)) - (\log_{3} (x - 2)) = 2$
2007	Balance	PV=nRT , T(solve)(the)(formula)(for)(the)(given) variable	$P V = n R T$ , $T (s o l v e) (t h e) (f o r m u l a) (f o r) (t h e) (g i v e n)$ variable
2008	Balance	Si_4H_10(l)+O_2(g)→SiO_2(s)+H_2O(l)	$S i_{4} H_{10} (l) + O_{2} (g) \to S i O_{2} (s) + H_{2} O (l)$
2009	Balance	( log base 7 of 5)-( log base 7 of 3) =	$(\log_{7} (5)) - (\log_{7} (3)) =$
2010	Balance	Zn+2HCl→ZnCl_2+H_2	$Z n + 2 H C l \to Z n C l_{2} + H_{2}$
2011	Balance	p_1v_1=p_2v_2	$p_{1} v_{1} = p_{2} v_{2}$
2012	Balance	U→He	$U \to H e$
2013	Balance	ph=- log of 0.1m	$p h = - \log (0.1 m)$
2014	Balance	NaNO_3+PbO→Pb(NO_3)_2+Na_2O	$N a N O_{3} + P b O \to P b {(N O_{3})}_{2} + N a_{2} O$
2015	Balance	NaCl→Na+Cl	$N a C l \to N a + C l$
2016	Balance	2Ca+Br_2→CaBr_2	$2 C a + B r_{2} \to C a B r_{2}$
2017	Balance	2CH_4+6Cl_2→2CHCl_3+6HCl	$2 C H_{4} + 6 C l_{2} \to 2 C H C l_{3} + 6 H C l$
2018	Balance	2H_2+2O_2→2H_2O	$2 H_{2} + 2 O_{2} \to 2 H_{2} O$
2019	Balance	Al+MnO_2→Al_2O_3+Mn	$A l + M n O_{2} \to A l_{2} O_{3} + M n$
2020	Balance	H_3PO_4+Mg(OH)_2→Mg_3(PO_4)_2+H_2O	$H_{3} P O_{4} + M g {(O H)}_{2} \to M g_{3} {(P O_{4})}_{2} + H_{2} O$
2021	Balance	C_12H_22O_11+O_2→CO_2+H_2O	$C_{12} H_{22} O_{11} + O_{2} \to C O_{2} + H_{2} O$
2022	Balance	Al+Fe_2O_3→AL_2O_3+Fe	$A l + F e_{2} O_{3} \to A L_{2} O_{3} + F e$
2023	Balance	Al+Fe_3O_4→Al_2O_3+Fe	$A l + F e_{3} O_{4} \to A l_{2} O_{3} + F e$
2024	Balance	BaCO_3→BaO+CO_2	$B a C O_{3} \to B a O + C O_{2}$
2025	Balance	Ca(OH_2)+H_3PO_4→Ca_3(PO_4)_2+H_2O	$C a (O H_{2}) + H_{3} P O_{4} \to C a_{3} {(P O_{4})}_{2} + H_{2} O$
2026	Balance	CH_4+Cl_2→CH_3Cl+CCl_2	$C H_{4} + C l_{2} \to C H_{3} C l + C C l_{2}$
2027	Balance	CH_3(CH_2)_4CH_3(g)+O_2→CO_2(g)+H_2O(g)	$C H_{3} {(C H_{2})}_{4} C H_{3} (g) + O_{2} \to C O_{2} (g) + H_{2} O (g)$
2028	Balance	co+o_2=co_2	$c o + o_{2} = c o_{2}$
2029	Balance	Be→LiBe	$B e \to L i B e$
2030	Balance	N_2H_4+O_2=NO_2+H_2O	$N_{2} H_{4} + O_{2} = N O_{2} + H_{2} O$
2031	Balance	Na_3PO_4+Mg(NO_3)_2→Mg(PO_4)_2+NaNO_3	$N a_{3} P O_{4} + M g {(N O_{3})}_{2} \to M g {(P O_{4})}_{2} + N a N O_{3}$
2032	Balance	NH_3+CuO→N_2+Cu+H_2O	$N H_{3} + C u O \to N_{2} + C u + H_{2} O$
2033	Balance	Mg+N_2→Mg_3N_2	$M g + N_{2} \to M g_{3} N_{2}$
2034	Balance	Na+NaNO_3→Na_2O+N_2	$N a + N a N O_{3} \to N a_{2} O + N_{2}$
2035	Balance	cos(T)=0.24	$\cos (T) = 0.24$
2036	Balance	NaBr+I_2→NaI+Br_2	$N a B r + I_{2} \to N a I + B r_{2}$
2037	Balance	NaCl+AgNO_3→AgCl+NaNO_3	$N a C l + A g N O_{3} \to A g C l + N a N O_{3}$
2038	Balance	K+O_2→KO_2	$K + O_{2} \to K O_{2}$
2039	Balance	f(x)=3x+1 , domainB [-2,-1,0,1]	$f (x) = 3 x + 1$ , domainB $[- 2, - 1, 0, 1]$
2040	Balance	10KClO_3+3P_4→3P_4O_10	$10 K C l O_{3} + 3 P_{4} \to 3 P_{4} O_{10}$
2041	Balance	c=10g7.527.8	$c = 10 g \cdot 7.5 \cdot 27.8$
2042	Balance	cos(2x)=1+4cos(x)Rh	$\cos (2 x) = 1 + 4 \cos (x) R h$
2043	Balance	FeCl_3+H_2S→FeCl_2+HCl+S	$F e C l_{3} + H_{2} S \to F e C l_{2} + H C l + S$
2044	Balance	2( log base 2 of x+6)+( log base 2 of x+6)=( log base 3 of 9)	$2 (\log_{2} (x + 6)) + (\log_{2} (x + 6)) = (\log_{3} (9))$
2045	Balance	KOH+CO_2→K_2CO_3+H_2	$K O H + C O_{2} \to K_{2} C O_{3} + H_{2}$
2046	Balance	222.7l→dl	$222.7 l \to d l$
2047	Balance	Pb(OH)_2+HCl→H_2O+PbCl_2	$P b {(O H)}_{2} + H C l \to H_{2} O + P b C l_{2}$
2048	Balance	NH_4Cl+NaOH→NH_4OH+NaCl	$N H_{4} C l + N a O H \to N H_{4} O H + N a C l$
2049	Balance	Na_2S_2O_3+HCl→NaCl+S+SO_2+H_2O	$N a_{2} S_{2} O_{3} + H C l \to N a C l + S + S O_{2} + H_{2} O$
2050	Balance	2Al+3Br_2→Al_2Br_6	$2 A l + 3 B r_{2} \to A l_{2} B r_{6}$
2051	Balance	2Al+3Cl_2→2AlCl_3	$2 A l + 3 C l_{2} \to 2 A l C l_{3}$
2052	Balance	2Fe(OH)_3→Fe_2O_3+3H_2O	$2 F e {(O H)}_{3} \to F e_{2} O_{3} + 3 H_{2} O$
2053	Balance	2H_2+O_2→H_2O	$2 H_{2} + O_{2} \to H_{2} O$
2054	Balance	2H_2S(g)+SO_2(g)→3S(s)+2H(2O(l))	$2 H_{2} S (g) + S O_{2} (g) \to 3 S (s) + 2 H (2 O (l))$
2055	Balance	2h_2+o_2→2h_2o	$2 h_{2} + o_{2} \to 2 h_{2} o$
2056	Balance	2HCl+2NaOH→2NaCl+H_2O	$2 H C l + 2 N a O H \to 2 N a C l + H_{2} O$
2057	Balance	2HgO→2Hg+O_2	$2 H g O \to 2 H g + O_{2}$
2058	Balance	2K+2H_2O→2KOH+H_2	$2 K + 2 H_{2} O \to 2 K O H + H_{2}$
2059	Balance	CuS+O_2→CuO+SO_2	$C u S + O_{2} \to C u O + S O_{2}$
2060	Balance	2Na+Cl→NaCl	$2 N a + C l \to N a C l$
2061	Balance	2Na+H_2O→Na_2O+H_2	$2 N a + H_{2} O \to N a_{2} O + H_{2}$
2062	Balance	2NaCl+Cl_4=4NaCl	$2 N a C l + C l_{4} = 4 N a C l$
2063	Balance	2NaN_2(s)→3N_2(g)+2Na(s)	$2 N a N_{2} (s) \to 3 N_{2} (g) + 2 N a (s)$
2064	Find the Mass Percentages	HCl	$H C l$
2065	Balance	Fe_3O_4+CO→FeO+CO_2	$F e_{3} O_{4} + C O \to F e O + C O_{2}$
2066	Balance	MnO_2+KClO_3+KOH→KMnO_4+KCl	$M n O_{2} + K C l O_{3} + K O H \to K M n O_{4} + K C l$
2067	Balance	C_3H_8+O_2=CO_2+H_2O	$C_{3} H_{8} + O_{2} = C O_{2} + H_{2} O$
2068	Balance	P_4+C_1(2)→PCI_3	$P_{4} + C_{1} (2) \to P C I_{3}$
2069	Balance	ph=- log of H	$p h = - \log (H)$
2070	Balance	S_8+H_2→H_2S	$S_{8} + H_{2} \to H_{2} S$
2071	Balance	Sn+NaOH→Na_2SnO_2+H_2	$S n + N a O H \to N a_{2} S n O_{2} + H_{2}$
2072	Balance	Fe+H_2O→Fe_3O_4+H_2	$F e + H_{2} O \to F e_{3} O_{4} + H_{2}$
2073	Balance	FE+KNO_2→Fe_2O_3+K_2O+N_2	$F E + K N O_{2} \to F e_{2} O_{3} + K_{2} O + N_{2}$
2074	Balance	H_2O+CO_2→C_6H_12O_6+O_2	$H_{2} O + C O_{2} \to C_{6} H_{12} O_{6} + O_{2}$
2075	Balance	H_2O=H_2+O_2	$H_{2} O = H_{2} + O_{2}$
2076	Balance	O_3→O_2+O	$O_{3} \to O_{2} + O$
2077	Balance	NH_4ClO_4→N_2+Cl_2+O_2+H_2O	$N H_{4} C l O_{4} \to N_{2} + C l_{2} + O_{2} + H_{2} O$
2078	Balance	Mg(NO_3)_2+AgCl→AgNO_3+MgCl_2	$M g {(N O_{3})}_{2} + A g C l \to A g N O_{3} + M g C l_{2}$
2079	Balance	y=10 log of ( log of 77777777777777777)_0*10000	$y = 10 \log ({(\log (77777777777777777))}_{0}) \cdot 10000$
2080	Balance	Li+H_2O→LiOH+H_2	$L i + H_{2} O \to L i O H + H_{2}$
2081	Balance	Ti→Mt	$T i \to M t$
2082	Balance	Ti→V	$T i \to V$
2083	Balance	Ti+N_2→Ti_3N_4	$T i + N_{2} \to T i_{3} N_{4}$
2084	Balance	TiCl_4+H_2O→TiO_2+HCl	$T i C l_{4} + H_{2} O \to T i O_{2} + H C l$
2085	Balance	n_2+F_2=NF_3	$n_{2} + F_{2} = N F_{3}$
2086	Balance	TiO_2+B_4C+C→TiB_2+CO	$T i O_{2} + B_{4} C + C \to T i B_{2} + C O$
2087	Balance	Nacl+H_2O→NaOH+HCl	$N a c l + H_{2} O \to N a O H + H C l$
2088	Balance	U→Cs	$U \to C s$
2089	Balance	4Al+3O_2→2Al_2O_3	$4 A l + 3 O_{2} \to 2 A l_{2} O_{3}$
2090	Balance	UF_6(g)=225.0g	$U F_{6} (g) = 225 g$
2091	Balance	CH_3(CH_2)_4CH_3+O_2→CO_2+H_2O	$C H_{3} {(C H_{2})}_{4} C H_{3} + O_{2} \to C O_{2} + H_{2} O$
2092	Balance	e = natural log of xHe	$e = \ln (x) H e$
2093	Balance	Uuo→Rn	$U u o \to R n$
2094	Balance	Uuo→UusH	$U u o \to U u s H$
2095	Balance	Uuo+H_2O→Uuo_2H_3O_4+O_5	$U u o + H_{2} O \to U u o_{2} H_{3} O_{4} + O_{5}$
2096	Balance	Uuo+O→H_2	$U u o + O \to H_{2}$
2097	Balance	4KO_2+2H_2O→4KOH+O_2	$4 K O_{2} + 2 H_{2} O \to 4 K O H + O_{2}$
2098	Balance	2AgNO_3+Cu→2Cu	$2 A g N O_{3} + C u \to 2 C u$
2099	Balance	v+y=1fvtgdg_0	$v + y = 1 f v t g d g_{0}$
2100	Balance	v=(250Hz)(6.0m)	$v = (250 H z) (6 m)$