Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
901	Simplify	7i*(-8i)	$7 i \cdot (- 8 i)$
902	Simplify	7xy-xy+3xy	$7 x y - x y + 3 x y$
903	Simplify	8x_6+9	$8 x_{6} + 9$
904	Convert to a Percentage	0.00001	$0.00001$
905	Convert to a Percentage	98	$98$
906	Determine the Type of Number	31.00	$31$
907	Find the Specific Heat	What (is)(the)(specific)(heat)(of)(the)(substan(ce))(if)(95cal)(increases)(the)(temperature)(of)(45g)(from)(40 degrees C)(to)(55 degrees C)	What $(i s) (t h e) (s p e c i f i c) (h e a t) (o f) (t h e) (s u b s \tan (c e)) (i f) (95 c a l) (i n c r e a s e s) (t h e) (t e m p e r a t u r e) (o f) (45 g) (f r o m) (40 ° C) (t o) (55 ° C)$
908	Determine the Type of Number	50	$50$
909	Determine the Type of Number	500.0	$500$
910	Convert to a Percentage	convert*7.1(g)(of)(potasium)(to)(ato(ms))	$c o n v e r t \cdot 7.1 (g) (o f) (p o t a s i u m) (t o) (a t o m s)$
911	Determine the Type of Number	1.003	$1.003$
912	Determine the Type of Number	96470000	$96470000$
913	Determine if the Compound is Soluble in Water	Ti	$T i$
914	Find the Number of Mols	0.00103 gCo	$0.00103$ gCo
915	Find the Empirical/Simplest Formula	Al_2(SO_4)_3	$A l_{2} {(S O_{4})}_{3}$
916	Determine if the Compound is Soluble in Water	SO_2	$S O_{2}$
917	Determine if the Compound is Soluble in Water	U	$U$
918	Determine if the Compound is Soluble in Water	XeF_4	$X e F_{4}$
919	Find the Empirical/Simplest Formula	C_2H_6	$C_{2} H_{6}$
920	Find the Number of Mols	483.88g of C_6H_12O_6	$483.88 g$ of $C_{6} H_{12} O_{6}$
921	Find the Empirical/Simplest Formula	C_2H_5OH	$C_{2} H_{5} O H$
922	Find the Empirical/Simplest Formula	C_6H_6	$C_{6} H_{6}$
923	Find the Empirical/Simplest Formula	C_3H_8	$C_{3} H_{8}$
924	Find the Empirical/Simplest Formula	C	$C$
925	Determine if the Compound is Soluble in Water	N	$N$
926	Find the Empirical/Simplest Formula	C_6H_12n_6	$C_{6} H_{12} n_{6}$
927	Find the Number of Mols	21.6g of k_2cr_2o_7	$21.6 g$ of $k_{2} c r_{2} o_{7}$
928	Find the Number of Mols	22.2 gNa	$22.2$ gNa
929	Find the Number of Mols	how (much)(heat)(is)(required)(to)(warm)(1.40kg)(of)(sandfrom)24.0(deg)c(to)100.0(deg)c	how $(μ c h) (h e a t) (i s) (r e q u i r e d) (t o) (w a r m) (1.4 kg) (o f) (s a n d f r o m) \cdot 24 (d e g r e e s) c (t o) \cdot 100 (d e g r e e s) c$
930	Find the Empirical/Simplest Formula	KSe	$K S e$
931	Convert to a Percentage	22050	$22050$
932	Convert to a Percentage	54.25	$54.25$
933	Convert to a Percentage	655031	$655031$
934	Find the Empirical/Simplest Formula	Zn	$Z n$
935	Convert to a Percentage	781250	$781250$
936	Find the Empirical/Simplest Formula	NaOH	$N a O H$
937	Find the Empirical/Simplest Formula	P_4O_10	$P_{4} O_{10}$
938	Find the Empirical/Simplest Formula	CH_4	$C H_{4}$
939	Find the Empirical/Simplest Formula	Cl	$C l$
940	Find the Empirical/Simplest Formula	H_2O_2	$H_{2} O_{2}$
941	Balance	FeCl+KOH→Fe(OH)_3+KCl	$F e C l + K O H \to F e {(O H)}_{3} + K C l$
942	Find the Empirical/Simplest Formula	H_3PO_4	$H_{3} P O_{4}$
943	Find the Empirical/Simplest Formula	He	He
944	Find the Empirical/Simplest Formula	MgCl	$M g C l$
945	Find the Empirical/Simplest Formula	Mo	$M o$
946	Find the Empirical/Simplest Formula	N_2	$N_{2}$
947	Find the Atomic Number	Ru	$R u$
948	Find the Atomic Number	Pt	$P t$
949	Find the Atomic Number	Si	$S i$
950	Determine if the Compound is Soluble in Water	Ag	$A g$
951	Determine if the Compound is Soluble in Water	AgBr	$A g B r$
952	Determine if the Compound is Soluble in Water	AgCl	$A g C l$
953	Determine if the Compound is Soluble in Water	C	$C$
954	Find the Atomic Number	He	He
955	Find the Atomic Number	Cr	$C r$
956	Find the Atomic Number	Li	$L i$
957	Find the Atomic Number	Mn	$M n$
958	Find the Atomic Number	Mo	$M o$
959	Find the Atomic Number	N	$N$
960	Find the Atomic Number	Na	$N a$
961	Find the Atomic Number	Sr	$S r$
962	Find the Atomic Number	Tc	$T c$
963	Find the Atomic Number	Ti	$T i$
964	Find the Atomic Mass	Cu	$C u$
965	Find the Atomic Mass	Mn	$M n$
966	Find the Atomic Mass	Mt	$M t$
967	Find the Atomic Mass	S	$S$
968	Find the Atomic Number	Ar	$A r$
969	Find the Atomic Mass	W	$W$
970	Find the Atomic Mass	Xe	$X e$
971	Find the Atomic Mass	Zn	$Z n$
972	Determine if the Compound is Soluble in Water	CH_4	$C H_{4}$
973	Determine if the Compound is Soluble in Water	Cl	$C l$
974	Determine if the Compound is Soluble in Water	BaCO_3	$B a C O_{3}$
975	Determine if the Compound is Soluble in Water	CaCl_2	$C a C l_{2}$
976	Determine if the Compound is Soluble in Water	F	$F$
977	Determine if the Compound is Soluble in Water	Fe	$F e$
978	Determine if the Compound is Soluble in Water	H_2S	$H_{2} S$
979	Determine if the Compound is Soluble in Water	KNO_3	$K N O_{3}$
980	Determine if the Compound is Soluble in Water	MgCO_3	$M g C O_{3}$
981	Determine if the Compound is Soluble in Water	Ir	$I r$
982	Find the Density at STP	Zn	$Z n$
983	Find the Density at STP	V	$V$
984	Find the pH	0.57MHClO_4 solution	$0.57 M H C l O_{4}$ solution
985	Find the Density at STP	ZnCn_3	$Z n C n_{3}$
986	Find the Density at STP	Pt	$P t$
987	Find the Density at STP	Mo	$M o$
988	Find the Density at STP	Na	$N a$
989	Find the Density at STP	Sn	$S n$
990	Find the Density at STP	HO	$H O$
991	Find the Density at STP	Li	$L i$
992	Find the Density at STP	H_2S	$H_{2} S$
993	Find the Atomic Mass	B	$B$
994	Find the Atomic Mass	Au	$A u$
995	Find the Concentration	How (much)(heat) in (J)(is)(required)(to)(raise)(200mL)(of)(water)(from)25(deg)(C)(to)45(deg) , C	How $(m u c h) (h e a t)$ in $(J o u l e s) (i s) (r e q u i r e d) (t o) (r a i s e) (200 mL) (o f) (w a t e r) (f r o m) \cdot 25 (d e g r e e) (C e l s i u s) (t o) \cdot 45 (d e g r e e)$ , Celsius
996	Find the Mass of the Solute	Find (the)(mass)(of)(NaCl)(that)(is) in (7L)(of)(1.80M)(solution)	Find $(t h e) (m a s s) (o f) (N a C l) (t h a t) (i s)$ in $(7 L) (o f) (1.8 M) (s o l u t i o n)$
997	Find the pH	How many(mg)(of)(pure)(drug)(are)in1.5mL(of)a1:1000(solution)(of)(epnephrine)	How $(m a n y) (mg) (o f) (p u r e) (d r u g) (a r e) i n \cdot 1.5 (mL) (o f) a \cdot 1 : 1000 (s o l u t i o n) (o f) (e p n e p h i n e)$
998	Find the pH	0.86M (CH_3)_2NH solution	$0.86 M$ ${(C H_{3})}_{2} N H$ solution
999	Find the Concentration	Find (the)(concentration)(of)(3g)(of)(NaCl) in (18L)(of)(solution)	Find $(t h e) (c o n c e n t r a t i o n) (o f) (3 g) (o f) (N a C l)$ in $(18 L) (o f) (s o l u t i o n)$
1000	Balance	H_2+O_2=H_2O	$H_{2} + O_{2} = H_{2} O$