Question
"We need to balance an unbalanced skeletal chemical equation". Justify the statement.
✓
Answer
Skeletal chemical equations are either self balanced or unbalanced. We need to balance the unbalanced chemical equation because of law of conservation of mass which states that "In any reaction, the total mass of each of the elements in the reactants is same as the total mass of each of the respective elements in products". Therefore chemical equation must be balanced in each and every chemical reaction.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
WRITE NOTES : Environmental Conservation:
A milkman adds a very small amount of baking soda to fresh milk.
- Why does he shift the pH of the fresh milk from 6 to slightly alkaline?
- Why does this milk take a long time to set as curd?
Explain why, it is dangerous to inhale air containing carbon monoxide.
Why do silver articles turn blackish while copper vessels turn greenish on keeping in air for long time?
Calculate the heat produced in calorie when a current of 0.2 A is passed through a wire of resistance 41.8 Ω for 10 minutes.
Define : Calcination
Find the heat absorbed by 25 g of water at 100 °C to convert into steam at the same temperature. (Specific latent heat of vaporization of water = 540 cal/g.)
An electric kettle connected to the 230V mains supply draws a current of 10A. Calculate:
- The power of the kettle.
- The energy transferred in 1 minute.
The figure below shows a variable resistor in a dimmer switch.
How would you turn the switch to make the lights: (a) brighter, and(b) dimmer? Explain your answer
How would you turn the switch to make the lights: (a) brighter, and(b) dimmer? Explain your answer
The structural formula of an ester is:
$ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \ \text{O} \ \ \ \ \ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \text{H}\\ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \text{||} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \ \text{|}\\\text{H}-\text{C}-\text{C}-\text{O}-\text{C}-\text{C}-\text{H}\\ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \ \text{|}\\ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \ \text{H}$
Write the formula of the acid and the alcohol from which it is formed.
→$ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \ \text{O} \ \ \ \ \ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \text{H}\\ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \text{||} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \ \text{|}\\\text{H}-\text{C}-\text{C}-\text{O}-\text{C}-\text{C}-\text{H}\\ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{|} \ \ \ \ \ \ \ \text{|}\\ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \ \text{H}$
Write the formula of the acid and the alcohol from which it is formed.