Balancing Chemical Equations — Unit test Answers
0 verified answers1 views
1
Free Preview
When balanced, which equation would have the coefficient 3 in front of any of the reactants?
A
Zn + HCl ZnCl2 + H2
B
H2SO4 + B(OH)3 B2(SO4)3 + H2OC
Fe + AgNO3 Fe(NO3)2 + AgD
C2H4O2 + O2 CO2 +H2O2
Free Preview
What is produced during the replacement reaction of Cu(NO3)2 and Zn?
A
ZnNO3 + CuB
Zn + Cu(NO3)2C
ZnCu + 2NO3D
Zn(NO3)2 + Cu3
Which type of reaction is Mg + S → MgS?
A
polymerizationB
synthesisC
replacementD
decomposition4
[BLANK]
A
synthesisB
polymerizationC
decompositionD
oxidationE
replacement5
Which statement best describes balancing equations and the law of conservation of mass?
A
There are more atoms in the reactants than in the products, and the total mass is the same in the reactants and in the products.B
The number of atoms is the same in the reactants and in the products, and the total mass is the same in the reactants and in the products.C
There are fewer atoms in the reactants than in the products, and the total mass is less in the reactants than in the products.D
There are more atoms in the reactants than in the products, and the total mass is higher in the reactants than in the products.Did you find these answers helpful?
Verified answers available
TRY EDGENUITY HACKS
- Auto Complete Exams
- Auto Complete Assignments
- Skip Videos Instantly
50,000+ students using this