Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
401	Find the Number of Neutrons	Rb	$R b$
402	Find the Number of Neutrons	Ir	$I r$
403	Find the Number of Neutrons	Bi	$B i$
404	Find the Number of Neutrons	Br	$B r$
405	Find the Number of Electrons	N	$N$
406	Find the Number of Electrons	Na	$N a$
407	Find the Number of Electrons	Mo	$M o$
408	Find the Number of Electrons	Lr	$L r$
409	Find the Number of Electrons	Si	$S i$
410	Find the Number of Protons	n	$n$
411	Find the Moles	How many mol of N are in 0.217g of N_2O	How many moles of $N$ are in $0.217 g$ of $N_{2} O$
412	Find the Number of Protons	V	$V$
413	Evaluate	(6.0210^23)(8.65*10^4)	$(6.02 \cdot 10^{23}) (8.65 \cdot 10^{4})$
414	Find the Mass of 1 Mole	H_2CO_3	$H_{2} C O_{3}$
415	Find the Mass of 1 Mole	HNO_3	$H N O_{3}$
416	Find the Mass of 1 Mole	HOO	$H O O$
417	Find the Mass of 1 Mole	H_2S	$H_{2} S$
418	Balance	c_3h_8+50(2)→4h_2o+3co_2	$c_{3} h_{8} + 50 (2) \to 4 h_{2} o + 3 c o_{2}$
419	Find the Mass of 1 Mole	Ca(NO_3)_2	$C a {(N O_{3})}_{2}$
420	Find the Mass of 1 Mole	CCl_4	$C C l_{4}$
421	Find the Mass of a Single Atom	V	$V$
422	Find the Mass of a Single Atom	Te	$T e$
423	Find the Mass of a Single Atom	Ti	$T i$
424	Find the Mass of 1 Mole	AgCl	$A g C l$
425	Find the Mass of 1 Mole	AgNo_3	$A g N o_{3}$
426	Find the Mass of a Single Atom	Mg	$M g$
427	Find the Mass of a Single Atom	Mn	$M n$
428	Find the Mass of a Single Atom	N	$N$
429	Find the Mass of a Single Atom	Pd	$P d$
430	Find the Mass of a Single Atom	Ne	$N e$
431	Find the Mass of 1 Mole	KMnO_4	$K M n O_{4}$
432	Find the Number of Protons	Tc	$T c$
433	Find the Number of Protons	Ca	$C a$
434	Find the Mass of 1 Mole	Na_2O	$N a_{2} O$
435	Find the Mass of 1 Mole	Si	$S i$
436	Find the Mass of 1 Mole	Cl	$C l$
437	Find the Mass of 1 Mole	Cr	$C r$
438	Find the Number of Protons	Cr	$C r$
439	Find the Mass of 1 Mole	CaSO_4	$C a S O_{4}$
440	Find the Mass of 1 Mole	Cd	$C d$
441	Find the Mass of 1 Mole	C_3H_8	$C_{3} H_{8}$
442	Find the Mass of 1 Mole	Au	$A u$
443	Find the Mass of 1 Mole	Br	$B r$
444	Find the Mass of 1 Mole	BF_3	$B F_{3}$
445	Find the Mass of 1 Mole	Be	Be
446	Find the Number of Protons	Ir	$I r$
447	Find the Mass of 1 Mole	NH_3	$N H_{3}$
448	Find the Mass of 1 Mole	Ru	$R u$
449	Find the Mass of 1 Mole	S_8	$S_{8}$
450	Balance	H_2O→O_2	$H_{2} O \to O_{2}$
451	Find the Mass of 1 Mole	KI	$K I$
452	Find the Mass of 1 Mole	Kr	$K r$
453	Find the Mass of 1 Mole	Mg	$M g$
454	Find the Mass of 1 Mole	Mg(OH)_2	$M g {(O H)}_{2}$
455	Find the Mass of 1 Mole	N_2	$N_{2}$
456	Find the Mass of 1 Mole	Mn_5	$M n_{5}$
457	Balance	2KClO_3→2KCl+3O_2	$2 K C l O_{3} \to 2 K C l + 3 O_{2}$
458	Find the Number of Protons	Fm	$F m$
459	Balance	fe+cl_2=fecl_3
460	Balance	(NH_4)_3PO_4+Pb(NO_3)_4→Pb_3(PO_4)_4+NH_4NO_3	${(N H_{4})}_{3} P O_{4} + P b {(N O_{3})}_{4} \to P b_{3} {(P O_{4})}_{4} + N H_{4} N O_{3}$
461	Find the Mass Percentages	U	$U$
462	Balance	Al+O_2=Al_2O_3	$A l + O_{2} = A l_{2} O_{3}$
463	Find the Mass Percentages	H_2S	$H_{2} S$
464	Find the Mass Percentages	Mo	$M o$
465	Find the Mass Percentages	NaOH	$N a O H$
466	Find the Mass Percentages	NaNO_3	$N a N O_{3}$
467	Find the Mass Percentages	WTcSi	$W T c S i$
468	Find the Electron Configuration	Zr	$Z r$
469	Balance	0.59 = log of x	$0.59 = \log (x)$
470	Find the Electron Configuration	Hg	$H g$
471	Find the Mass Percentages	Ca(HCn_3)_2	$C a {(H C n_{3})}_{2}$
472	Find the Mass Percentages	Ca(NO_3)_2	$C a {(N O_{3})}_{2}$
473	Find the Electron Configuration	B	$B$
474	Find the Electron Configuration	Ba	$B a$
475	Find the Mass of 1 Mole	Zr	$Z r$
476	Find the Mass of 1 Mole	XeF_4	$X e F_{4}$
477	Find the Electron Configuration	Mo	$M o$
478	Find the Electron Configuration	Sb	$S b$
479	Find the Electron Configuration	Sr	$S r$
480	Find the Electron Configuration	Cl	$C l$
481	Balance	C_7H_17+O_2→CO_2+H_2O	$C_{7} H_{17} + O_{2} \to C O_{2} + H_{2} O$
482	Balance	CL_2+KBr→KCL+Br_2	$C L_{2} + K B r \to K C L + B r_{2}$
483	Balance	CO_2+NH_3→OC(NH_2)_2+H_2O	$C O_{2} + N H_{3} \to O C {(N H_{2})}_{2} + H_{2} O$
484	Balance	H+O_2→H_2O	$H + O_{2} \to H_{2} O$
485	Balance	H_2O_2→H_2O+O_2	$H_{2} O_{2} \to H_{2} O + O_{2}$
486	Balance	FeS_2+O_2→Fe_2O_3+SO_2	$F e S_{2} + O_{2} \to F e_{2} O_{3} + S O_{2}$
487	Balance	Fe_2O_3+H_2→Fe+H_2O	$F e_{2} O_{3} + H_{2} \to F e + H_{2} O$
488	Balance	Fe_2O_3(S)→Fe(S)+O_2(g)	$F e_{2} O_{3} (S) \to F e (S) + O_{2} (g)$
489	Balance	Al_2O_3+H_2O→Al(OH)_3	$A l_{2} O_{3} + H_{2} O \to A l {(O H)}_{3}$
490	Balance	AlBr_3+K_2SO_4→KBr+Al_2(SO_4)_3	$A l B r_{3} + K_{2} S O_{4} \to K B r + A l_{2} {(S O_{4})}_{3}$
491	Balance	Al+O_2→Al_2O_3	$A l + O_{2} \to A l_{2} O_{3}$
492	Balance	Ag_2O→Ag+O_2	$A g_{2} O \to A g + O_{2}$
493	Balance	C_2H_5OH+O_2→CO_2+H_2O	$C_{2} H_{5} O H + O_{2} \to C O_{2} + H_{2} O$
494	Balance	C_2H_6+O_2=CO_2+H_2O	$C_{2} H_{6} + O_{2} = C O_{2} + H_{2} O$
495	Balance	C_5H_10+O_2→CO_2+H_2O	$C_{5} H_{10} + O_{2} \to C O_{2} + H_{2} O$
496	Balance	c_5h_12+o_2→CO_2+H_2O	$c_{5} h_{12} + o_{2} \to C O_{2} + H_{2} O$
497	Balance	C_5H_9O+O_2→CO_2+H_2O	$C_{5} H_{9} O + O_{2} \to C O_{2} + H_{2} O$
498	Balance	C_6H_12O_6+O_2→CO_2+H_2O	$C_{6} H_{12} O_{6} + O_{2} \to C O_{2} + H_{2} O$
499	Balance	C+O_2→CO	$C + O_{2} \to C O$
500	Balance	C+O_2→CO_2	$C + O_{2} \to C O_{2}$