Identify the following reaction HgO Hg + O2 Decomposition reaction Single replac
ID: 1081962 • Letter: I
Question
Identify the following reaction
HgO Hg + O2
Decomposition reaction
Single replacement reaction
Combustion Reaction
Synthesis Reaction
Double replacement reaction
Which of the following is an acid based reaction?
Pb(NO3)2+2KI->2KNO3+PbI2
2Mg+O2->2MgO
C2H8+5O2->3CO2+4H2O
H2SO4+2KOH->K2SO4+2H2O
Place the correct coefficients to balance the reaction below:
____CH4 + ____O2 ____CO2 + ____H2O_____
H2CO3 --> H2O + CO2 is a
Decomposition reaction
Single replacement reaction
Combustion Reaction
Synthesis Reaction
Double replacement reaction
Balance the following reaction
___Al + ___O2 ___Al2O3
2,1,1
4,3,2
2,3,1
5,3,2
Mg + 2HCI->MgCI+H2
How many grams of H2 will be produced from 12 grams of Mg
3.0
2.0
1.0
4.0
Balance the reaction below:
___NH3 ___N2 + ___H2
2,3,5
2,1,3
1,4,2
1,1,3
Balance the following reaction: What are the correct coefficients?
___P + ____ O2 ___P4O10
4,10,1
1,2,4
4,5,1
1,5,4
The equation shows a summary of the chemical reactions of photosynthesis.
6CO2+6H2O+energy->C6H12O6+____
what is missing from the product side of the equation?
12 carbon atoms
6 carbon atoms
12 hydrogen atoms
2 water molecules
For the reaction CaO(s) + H2O(l) Ca(OH)2(s), H = 65.2 kJ. This value means that 62.5 kJ of heat is __________ during the process.
destroyed
changed to mass
released
absorbed
The following reaction is:
Ca + 2 HCl --> CaCl2 + H2
Decomposition reaction
Single replacement reaction
Combustion Reaction
Synthesis Reaction
Double replacement reaction
The following reaction can be identified as
P4 + 5 O2 --> 2 P2O5
Decomposition reaction
Single replacement reaction
Combustion Reaction
Synthesis Reaction
Double replacement reaction
The unbalanced equation below shows the combustion of methane.
___CH4+___O2->___CO2+___H2O
Which series of numbers represents the coefficients necessary to balance equations?
1,1,1,2
0,3,2,2
1,2,1,2
2,2,1,4
The reaction between propane (C3H8) and oxygen below is classified as:
C3H8 + 5 O2 --> 3 CO2 + 4 H2O
Decomposition reaction
Single replacement reaction
Combustion Reaction
Synthesis Reaction
Double replacement reaction
The the following reaction is:
BaCO3 --> BaO + CO2
Decomposition reaction
Single replacement reaction
Combustion Reaction
Synthesis Reaction
Double replacement reaction
When magnesium is burned in the presence of oxygen, it produces magnesium oxide according to the following chemical equation.
2Mg+O2->2MgO
If 3.45 grams of Mg are burned, how many grams of MgO are produced?
5.72
8.69
3.45
4.35
When a molecule is separated into its component parts, it forms
compounds
atoms
protons
ions
Explanation / Answer
Ans 1 : Decomposition reaction
the balanced reaction is given as :
2HgO = 2Hg + O2
Since here 1 molecule of HgO compound is getting decomposed into its constituent atoms which is Hg and O2 , the reaction is considered as a decomposition reaction.