Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
201	Find the Mass of 1 Mole	(NH_4)_2CO_3	${(N H_{4})}_{2} C O_{3}$
202	Find the Mass of 1 Mole	(NH_4)_2SO_4	${(N H_{4})}_{2} S O_{4}$
203	Find the Mass of 1 Mole	He	He
204	Find the Mass of 1 Mole	Cl_2	$C l_{2}$
205	Find the Mass of 1 Mole	CaO	$C a O$
206	Find the Mass of 1 Mole	C_12H_22O_11	$C_{12} H_{22} O_{11}$
207	Find the Mass of 1 Mole	Mn	$M n$
208	Find the Mass of 1 Mole	N	$N$
209	Find the Mass of 1 Mole	Li	$L i$
210	Find the Mass of 1 Mole	KCl	$K C l$
211	Find the Mass of 1 Mole	HO	$H O$
212	Find the Mass of 1 Mole	Pd	$P d$
213	Find the Mass of 1 Mole	S	$S$
214	Find the Mass Percentages	O	$O$
215	Find the Electron Configuration	Ag	$A g$
216	Find the Mass of 1 Mole	Xe	$X e$
217	Find the Electron Configuration	Cr	$C r$
218	Find the Electron Configuration	Cu	$C u$
219	Balance	H_2(Sn_4)+K(nH)→K_2(Sn_4)+H(nH)	$H_{2} (S n_{4}) + K (n H) \to K_{2} (S n_{4}) + H (n H)$
220	Balance	Fe_2O_3+CO→Fe+CO_2	$F e_{2} O_{3} + C O \to F e + C O_{2}$
221	Balance	CH_4(g)+O_2(g)→CO_2(g)+H_2O(g)	$C H_{4} (g) + O_{2} (g) \to C O_{2} (g) + H_{2} O (g)$
222	Balance	Fe+Cl_2→FeCl_3	$F e + C l_{2} \to F e C l_{3}$
223	Balance	c_2h_6+o_2→co_2+h_2o	$c_{2} h_{6} + o_{2} \to c o_{2} + h_{2} o$
224	Balance	C_3H_8+O_2→CO_2+H_2O	$C_{3} H_{8} + O_{2} \to C O_{2} + H_{2} O$
225	Balance	C_2H_2+O_2→CO_2+H_2O	$C_{2} H_{2} + O_{2} \to C O_{2} + H_{2} O$
226	Balance	CH_2O+H_2→CH_3OH	$C H_{2} O + H_{2} \to C H_{3} O H$
227	Balance	Al(NO_3)_3+NaOH→Al(OH)_3+NaNO_3	$A l {(N O_{3})}_{3} + N a O H \to A l {(O H)}_{3} + N a N O_{3}$
228	Balance	Al_2O_3→Al+O_2	$A l_{2} O_{3} \to A l + O_{2}$
229	Balance	FeCl_2+H_2O+HCl→FeCl_3+H_2O	$F e C l_{2} + H_{2} O + H C l \to F e C l_{3} + H_{2} O$
230	Balance	H+O→H_2O	$H + O \to H_{2} O$
231	Balance	C_6H_6+O_2→CO_2+H_2O	$C_{6} H_{6} + O_{2} \to C O_{2} + H_{2} O$
232	Balance	C_7H_16+O_2→CO_2+H_2O	$C_{7} H_{16} + O_{2} \to C O_{2} + H_{2} O$
233	Balance	CH_3CH_3+O_2→CO_2+H_2O	$C H_{3} C H_{3} + O_{2} \to C O_{2} + H_{2} O$
234	Find the Electron Configuration	Br	$B r$
235	Find the Electron Configuration	F	$F$
236	Find the Electron Configuration	Ga	$G a$
237	Find the Electron Configuration	Ge	$G e$
238	Find the Electron Configuration	Nb	$N b$
239	Find the Electron Configuration	N	$N$
240	Find the Mass of 1 Mole	Sn	$S n$
241	Find the Mass of 1 Mole	W	$W$
242	Find the Mass of 1 Mole	Zn	$Z n$
243	Find the Electron Configuration	Ti	$T i$
244	Find the Electron Configuration	U	$U$
245	Balance	2mg+O_2→2 mgo	$2 mg + O_{2} \to 2$ mgo
246	Find the Mass of 1 Mole	Sc	$S c$
247	Find the Mass of 1 Mole	Re	$R e$
248	Find the Mass of 1 Mole	Rh	$R h$
249	Find the Mass of 1 Mole	P	$P$
250	Find the Mass of 1 Mole	NO_2	$N O_{2}$
251	Find the Mass of 1 Mole	Ni	$N i$
252	Find the Mass of 1 Mole	Na_2SO_4	$N a_{2} S O_{4}$
253	Find the Mass of 1 Mole	Na_3PO_4	$N a_{3} P O_{4}$
254	Find the Mass Percentages	what is the mass percent of calcium in calcium bromide CaBr_2	what is the mass percent of calcium in calcium bromide $C a B r_{2}$
255	Find the Mass of 1 Mole	CaCl_2	$C a C l_{2}$
256	Find the Mass of 1 Mole	Cu	$C u$
257	Simplify	Na+Cl	$N a + C l$
258	Find the Mass of 1 Mole	Fe_2O_3	$F e_{2} O_{3}$
259	Find the Mass of 1 Mole	KClO_3	$K C l O_{3}$
260	Find the Mass of a Single Atom	O	$O$
261	Find the Mass of a Single Atom	Hg	$H g$
262	Find the Mass of a Single Atom	Fe	$F e$
263	Find the Mass of a Single Atom	K	$K$
264	Find the Mass of a Single Atom	U	$U$
265	Find the Mass of 1 Mole	Ca_3(PO_4)_2	$C a_{3} {(P O_{4})}_{2}$
266	Balance	C_4H_10+O_2→CO_2+H_2O	$C_{4} H_{10} + O_{2} \to C O_{2} + H_{2} O$
267	Simplify	Mg+Tc	$M g + T c$
268	Find the Number of Electrons	Al	$A l$
269	Find the Number of Electrons	Br	$B r$
270	Find the Number of Electrons	Cu	$C u$
271	Find the Number of Protons	Hg	$H g$
272	Find the Number of Protons	He	He
273	Find the Number of Protons	Ne	$N e$
274	Find the Number of Neutrons	Ag	$A g$
275	Find the Number of Electrons	K	$K$
276	Find the Number of Electrons	P	$P$
277	Find the Number of Neutrons	He	He
278	Find the Number of Neutrons	Sc	$S c$
279	Find the Number of Neutrons	Po	$P o$
280	Find the Number of Neutrons	Np	$N p$
281	Find the Number of Neutrons	Lr	$L r$
282	Find the Mass of a Single Atom	Ca	$C a$
283	Find the Number of Neutrons	Ti	$T i$
284	Find the Number of Neutrons	Se	$S e$
285	Find the Number of Neutrons	Si	$S i$
286	Find the Number of Neutrons	Sn	$S n$
287	Find the Number of Protons	Au	$A u$
288	Convert to Kilograms	170g	$170 g$
289	Simplify	Fl	$F l$
290	Simplify	Uuo	$U u o$
291	Simplify	Na+HCl	$N a + H C l$
292	Evaluate	1.94	$1.94$
293	Simplify	2CH_3OH+3O_2-2CO_2+4H_2O+347kcal	$2 C H_{3} O H + 3 O_{2} - 2 C O_{2} + 4 H_{2} O + 347$ kcal
294	Simplify	Na+OH	$N a + O H$
295	Find the Empirical/Simplest Formula	C_2H_4n_6	$C_{2} H_{4} n_{6}$
296	Find the Empirical/Simplest Formula	H_2SO_4	$H_{2} S O_{4}$
297	Find the Atomic Mass	P	$P$
298	Find the Atomic Mass	Si	$S i$
299	Find the Atomic Mass	N	$N$
300	Determine if the Compound is Soluble in Water	He	He