Classify the chemical equations as being balanced or not balanced
Answers
Answer: Two of them are balanced and two of them are unbalanced.
Explanation:
A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on the product side. These equations follow law of conservation of mass.
An unbalanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is not equal to the total number of individual atoms on the product side. These equations does not follow law of conservation of mass.
For the given chemical equations:
Equation 1:
As, number of carbon, nitrogen and oxygen atoms on the reactant side is equal to the number of carbon, nitrogen and oxygen atoms on the product side. Thus, this is a balanced chemical equation.
Equation 2:
As, number of oxygen atoms on the reactant side is not equal to the number of oxygen atoms on the product side. Thus, this is not a balanced chemical equation.
Equation 3:
As, number of carbon, nitrogen and oxygen atoms on the reactant side is equal to the number of carbon, nitrogen and oxygen atoms on the product side. Thus, this is a balanced chemical equation.
Equation 4:
As, number of oxygen and copper atoms on the reactant side is not equal to the number of oxygen and copper atoms on the product side. Thus, this is not a balanced chemical equation
Hence, two of the equations are balanced and two are unbalanced.
1,2,4 are not balanced, 3 is balanced
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Answers
A triple beam balance measures the mass of an object in grams.
Usually the reading scale markings are
Beam A: 0 g to 500 g in 100 g increments
Beam B: 0 g to 100 g in 10 g increments
Beam C: 0 g to 10 g with 1 g major divisions and 0.1 g minor divisions
Answers
Answer:
Answer D
Explanation:
The Earth's system can be placed into four sub- groupings- : atmosphere, biosphere, lithosphere, and hydrosphere.
Answer:
Ocean, Land, Atmosphere, Life
Explanation:
4Zn + 10HNO3 + 4Zn(NO3)2 + N20 + 5H20
Help me please
Answers
Answer:
The equation is balanced
Explanation:
Before a equation can be said to be balanced the number of mole at the reaction side must be equal to number mole at the product side
Let's start with Zn at the reactant side 4 moles of Zn reacts and 4 moles of Zn was obtained from the product side which makes it balanced
Let's take HNO3
For H,10 moles react and 10 moles was obtained in the product side
For N,10 moles react and 8 moles was obtained initially and 2 moles was obtained as well which makes it 10 moles and it makes it balanced
For O,30 moles react and after calculating the total amount of O at the product side it was observed to be 30 which indicates that the equation is balanced...
The equation is absolutely well balanced
Answers
Answers
The specific of gravity is 0.16
Hope this helps :)
Answer:
he is right it is 0.16
Explanation:
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10 HSiCl3+ 15 H2O→H10Si10O15+ 30 HCl
Explanation:
Step 1: To make Si equal on both sides. put 10 in front of HSiCl3
10 HSiCl3+ H2O →H10Si10O15+ HCl
Step 2: By putting 30 in front of HCl, Cl can be balanced
10 HSiCl3+ H2O →H10Si10O15+ 30 HCl
Step 3: Now, balance O by putting 15 in front of H2O
10 HSiCl3+ 15 H2O→H10Si10O15+ 30 HCl
Hence the balanced equation is:
10 HSiCl3+ 15 H2O→H10Si10O15+ 30 HCl