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Types of Chemical Reactions
Balancing Chemical Equations 1
Balancing Chemical Equations 2
Mole & Mass Calculations in Chemical Equations
Mole & Mass Calculations in Chemical Equations 2
100

In this type of chemical reaction, two or more elements or compounds bond to form one product.

Combination

100

Which number would you add as coefficient to balance the next equation:

4Fe(s) +   __O2(g)   2Fe2O3(s)

3

100

From left to right, fill the coefficients needed to balance the next equation:

__Al(s) + __Br2(g) __AlBr3(s)


2, 3, 2

100

In the next chemical equation, how many moles of Br2 are needed to produced 3.24 moles of AlBr3?

2Al(s) + 3Br2(g) 2AlBr3(s)

4.86 moles of Br2

100

In the next chemical equation, how many moles of H2O will be produced with 3.19 moles of O2

 2C2H2(g) + 5O2(g) 4CO2(g) + 2H2O(g)


1.28 moles of H2O

200

In this type of chemical reaction, an uncombined element takes the place of an element in a compound.

Single Replacement

200

Which number would you add as coefficient to balance the next equation:

BCl3(s) +  3H2O(l)  H3BO3(aq) +   __HCl(aq)

3

200

From left to right, fill the coefficients needed to balance the next equation:

__Cr(s) +   __S2(s)   __Cr2S3(s)

4, 3, 2

200

In the next chemical equation, how many moles of PbCl2 are produced with 1.15 moles of NaCl?

Pb(NO3)2(aq) + 2NaCl(aq)

PbCl2(s) + 2NaNO3(aq)

0.575 moles of PbCl2

200

In the next chemical equation, how many grams of SO2 will be produced with 2.66 moles of O2

As4S6(s) +   9O2(g)   As4O6(s) +   6SO2(g)

113.49 grams of SO2

300

What kind of reaction is the next one: 

ZnCO3(s) CO2(g) + ZnO(s)

Decomposition

300

Which number would you add as coefficient to balance the next equation:

Al2(SO4)3(aq) + __KOH(aq)

2Al(OH)3(s) + 3K2SO4(aq)

6

300

From left to right, fill the coefficients needed to balance the next equation:

C4H8(g) + __O2(g) __CO2(g) + __H2O(g)

6, 4, 4

300

In the next chemical equation, how many moles of BaCl2 are needed to produce 50 grams of KCl?  


BaCl2(aq) + K2CO3(aq) BaCO3(s) + 2KCl(aq)

0.335 moles of BaCl2

300

In the next equation, how many moles of HCl are needed to generate 50.5 grams of CuCl2.

CuO(s) + 2HCl(aq) CuCl2(aq) + H2O(l).

0.75 moles of HCl

400

What kind of chemical reaction is the next one:

 BaCl2(aq) + K2CO3(aq) BaCO3(s) + 2KCl(aq)

Double Replacement

400

Which number would you add as coefficient to balance the next equation:

As4S6(s) +   __O2(g)   As4O6(s) +   6SO2(g)

9

400

From left to right, fill the coefficients needed to balance the next equation:

Sb2S3(s) +   __HCl(aq)   

__SbCl3(s) +   __H2S(g)

6, 2, 3

400

In the next chemical equation, how many grams of CO are produced with 0.5 moles of Fe2O3?  

Fe2O3(s) + 3C(s) 2Fe(s) + 3CO(g)

42 grams of CO

400

In the next equation, how many grams of SO3 will be generated with 40 grams of O2?

2SO2(g) + O2(g) 2SO3(g)

200 grams of SO3

500

What kind of chemical reaction is the next one:

 2C2H2(g) + 5O2(g) 4CO2(g) + 2H2O(g)

Combustion

500

Which number would you add as coefficient to balance the next equation:

C4H8(g) + ___O2(g) 4CO2(g) + 4H2O(g)

6

500

From left to right, fill the coefficients needed to balance the next equation:

Al2(SO4)3(aq) + __KOH(aq)

__Al(OH)3(s) + __K2SO4(aq)

6, 2, 3

500

In the next chemical equation, how many grams of CO2 are produced with 77 grams of O2?

C4H8(g) + 6O2(g) 4CO2(g) + 4H2O(g)

70.58 grams of CO2

500

In the next equation, how many grams of Pb(NO3)2 are needed to generate 67 grams of NaNO3?

Pb(NO3)2(aq) + 2NaCl(aq) PbCl2(s) + 2NaNO3(aq)

130.54 grams of Pb(NO3)2