WorksheetsBalancing equation
Total questions: 15
Worksheet time: 11mins
What are the coefficients needed to balance this equation?
__NH3 +__O2----->__N2 +__H2O
4,2,3,6
3,2,3,6
3,3,2,6
4,3,2,6
What are the coefficients needed to balance this equation?
__Al(OH)3 +__H2CO3---->__Al2(CO3)3+__H2O
2,3,2,5
2,3,6,1
2,3,1,6
2,3,5,2
Count how many atoms are there in Al2(SO4)3
(a)
Count how many atoms are there in Al2(CO3)3
(a)
What are the coefficients needed to balance this equation?
__CH3CH2CH2CH3 +__O2----->__CO2 +__H2O
2,13,8,10
2,12,8,10
2,13,7,10
2,12,7,10
Count how many atoms are there in Mg3(PO4)2
(a)
How many molecules does the Phosphorus have in the chemical equation of 4P+5O2---->2P2O5?
(a)
How many atoms does the Ca3(PO4)2 have?
(a)
It is place infront of the chemical formula.
Subscript
Superscript
Coefficient
Law of conservation of mass states that the mass can neither be created nor destroyed but is transformed from one form to another.
True
False
How many molecules does the N2 have in the chemical equation of N2+3H2----2NH3
(a)
How many molecules does the FeCl3 have in the chemical equation of FeCl3+3NaOH--->Fe(OH)3+3NaCl
(a)
What are the coefficients needed to balance this equation?
__KClO3---->__KCl +__O2
2,2,3
2,2,1
2,3,2
2,3,1
What are the coefficients needed to balance this equation?
__H3PO4 +__KOH---->__K3PO4 +__H2O
1,2,1,2
1,3,1,3
3,1,3,1
2,1,2,1
What are the main parts of chemical equation?
Chemical formula, chemical reaction, arrow
Reactants, products, arrow
Reactants, subscript, coefficients
Products, subscript, coefficients
