Answer:
Option (B) is correct.
The mass of the reactants equals the mass of the products.
Step-by-step explanation:
According to law of conservation of mass :
In a balanced chemical equation, the mass of reactants is always equal to the mass of products.
Here, Water 
is the reactant which has 4 units of Hydrogen and 2 units of oxygen.
and 
are products which also has 4 units 4 units of Hydrogen and 2 units of oxygen.
Thus, The mass of the reactants equals the mass of the products.
Thus, option (B) is correct.
Answer:
12
15
34
67
21
Step-by-step explanation:
the stuff and other do it
800+100=900 or 795+115=810 or 800+110=910
Answer:
998/1200 and 997/1200
Step-by-step explanation:
It’s hard to compare 5/6 and 83/100 in their current states. Let’s find a common denominator. Take 600. We know that this will work because both 6 and 100 go into it. Multiplying 5 by 100 and 83 by 6 to find the common denominator, we can compare them at 498/600 and 500/600. However, there is only one number (499/600) between them. Thus, we will multiply each number by 2/2, which is 1. Our numbers are then 996/1200 and 1000/1200. Two numbers between them are then 997/1200 and 998/1200
Rectangle and square
However, I would need to know which figures are involved seeing as there are no pictures of anything to work with.
