Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
101	Find the Number of Neutrons	Ne	$N e$
102	Find the Number of Neutrons	Co	$C o$
103	Find the Number of Protons	K	$K$
104	Find the Number of Protons	Mg	$M g$
105	Find the Number of Protons	Na	$N a$
106	Find the Number of Protons	O	$O$
107	Find the Number of Protons	Si	$S i$
108	Find the Number of Electrons	Ca	$C a$
109	Find the Number of Protons	Li	$L i$
110	Find the Mass of a Single Atom	He	He
111	Find the Mass of 1 Mole	CO	$C O$
112	Find the Mass of 1 Mole	Ag	$A g$
113	Find the Mass of 1 Mole	Pt	$P t$
114	Find the Mass of 1 Mole	Ti	$T i$
115	Find the Electron Configuration	Rb	$R b$
116	Find the Electron Configuration	Si	$S i$
117	Find the Electron Configuration	Mn	$M n$
118	Find the Electron Configuration	Ne	$N e$
119	Find the Electron Configuration	Zn	$Z n$
120	Balance	CaCO_3→CaO+CO_2	$C a C O_{3} \to C a O + C O_{2}$
121	Balance	CH_4+n_2→H_2n+Cn_2	$C H_{4} + n_{2} \to H_{2} n + C n_{2}$
122	Balance	CO_2+H_2O→C_6H_12O_6+O_2	$C O_{2} + H_{2} O \to C_{6} H_{12} O_{6} + O_{2}$
123	Balance	Fe+O_2→Fe_2O_3	$F e + O_{2} \to F e_{2} O_{3}$
124	Find the Electron Configuration	Xe	$X e$
125	Find the Electron Configuration	Ni	$N i$
126	Find the Electron Configuration	Li	$L i$
127	Find the Electron Configuration	Os	$O s$
128	Find the Electron Configuration	Sc	$S c$
129	Find the Electron Configuration	He	$H e$
130	Find the Electron Configuration	Au	$A u$
131	Find the Mass Percentages	C_6H_12O_6	$C_{6} H_{12} O_{6}$
132	Find the Mass Percentages	H_2SO_4	$H_{2} S O_{4}$
133	Find the Mass of 1 Mole	Nb	$N b$
134	Find the Mass of 1 Mole	Na_2CO_3	$N a_{2} C O_{3}$
135	Find the Mass of 1 Mole	Mo	$M o$
136	Find the Mass of 1 Mole	Ca	$C a$
137	Find the Mass of 1 Mole	Ca(OH)_2	$C a {(O H)}_{2}$
138	Find the Mass of 1 Mole	Co_2	$C o_{2}$
139	Find the Mass of 1 Mole	H_3PO_4	$H_{3} P O_{4}$
140	Find the Mass of a Single Atom	Os	$O s$
141	Find the Mass of 1 Mole	CH_4	$C H_{4}$
142	Find the Number of Electrons	C	$C$
143	Find the Number of Electrons	Fe	$F e$
144	Find the Number of Neutrons	Al	$A l$
145	Find the Number of Electrons	Li	$L i$
146	Find the Number of Neutrons	Ni	$N i$
147	Find the Number of Neutrons	Pb	$P b$
148	Find the Mass of a Single Atom	Au	$A u$
149	Find the Number of Neutrons	U	$U$
150	Find the Number of Neutrons	Zn	$Z n$
151	Find the Number of Protons	C	$C$
152	Find the Number of Protons	Fe	$F e$
153	Find the Empirical/Simplest Formula	NaCl	$N a C l$
154	Find the Atomic Mass	Na	$N a$
155	Determine if the Compound is Soluble in Water	CO_2	$C O_{2}$
156	Find the Atomic Mass	Ag	$A g$
157	Balance	NH_3+O_2→N_2+H_2O	$N H_{3} + O_{2} \to N_{2} + H_{2} O$
158	Balance	NH_3+O_2→NO+H_2O	$N H_{3} + O_{2} \to N O + H_{2} O$
159	Find the Oxidation Numbers	Li	$L i$
160	Find the Oxidation Numbers	Au	$A u$
161	Balance	h_2+o_2→h_2o	$h_{2} + o_{2} \to h_{2} o$
162	Find the Oxidation Numbers	CO_2	$C O_{2}$
163	Find the Oxidation Numbers	Cr	$C r$
164	Find the Oxidation Numbers	O	$O$
165	Balance	pv=nRT	$p v = n R T$
166	Balance	S+O_2→SO_2	$S + O_{2} \to S O_{2}$
167	Balance	N_2+H_2=NH_3	$N_{2} + H_{2} = N H_{3}$
168	Balance	Na+H_2O→NaOH+H_2	$N a + H_{2} O \to N a O H + H_{2}$
169	Balance	KClO_3→KClO_4+KCl	$K C l O_{3} \to K C l O_{4} + K C l$
170	Find the Density at STP	H	$H$
171	Find the Atomic Mass	Li	$L i$
172	Find the Atomic Mass	K	$K$
173	Find the Empirical/Simplest Formula	H_2n_2	$H_{2} n_{2}$
174	Find the Empirical/Simplest Formula	H	$H$
175	Find the Empirical/Simplest Formula	Li	$L i$
176	Find the Empirical/Simplest Formula	O	$O$
177	Find the Empirical/Simplest Formula	Fe	$F e$
178	Find the Empirical/Simplest Formula	C_6H_12O_6	$C_{6} H_{12} O_{6}$
179	Determine if the Compound is Soluble in Water	Na	$N a$
180	Simplify	Mg+O	$M g + O$
181	Simplify	H+H+O	$H + H + O$
182	Simplify	Ds	$D s$
183	Find the Number of Protons	Cu	$C u$
184	Find the Number of Protons	Al	$A l$
185	Find the Mass of a Single Atom	Ag	$A g$
186	Find the Number of Neutrons	Xe	$X e$
187	Find the Mass of a Single Atom	Be	Be
188	Find the Number of Neutrons	Re	$R e$
189	Find the Number of Neutrons	Ba	$B a$
190	Find the Number of Neutrons	Hs	$H s$
191	Find the Number of Neutrons	Cd	$C d$
192	Find the Number of Neutrons	Cl	$C l$
193	Find the Number of Electrons	Mg	$M g$
194	Find the Number of Neutrons	Ar	$A r$
195	Find the Number of Electrons	Cl	$C l$
196	Find the Number of Electrons	B	$B$
197	Find the Number of Protons	Zn	$Z n$
198	Find the Mass of 1 Mole	C_6H_12O_6	$C_{6} H_{12} O_{6}$
199	Find the Mass of a Single Atom	Pt	$P t$
200	Find the Mass of a Single Atom	Rh	$R h$