What is the easiest way to remember polyatomic ions?
1 answer:
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Balancing of chemical equation is essential because of the law of conservation of mass, which states that the mass of a system can not be created or removed.
The second equation is balanced
This is because the number of elements of each atom in the product side equal the number of elements of each atom on the reactant side.
The first equation is not balanced
This is because there is 1 molecule of on reactant side as compared to 3 molecules of
To balance the equation we add a coefficient of 3 on sulphuric acid () and a coefficient of 3 on hydrogen (
)
Answer:
<h3>The answer is 1.02 g/cm³</h3>Explanation:
The density of a substance can be found by using the formula
From the question
mass of block = 25 g
volume = 24.5 cm³
The density of the block is
We have the final answer as
<h3>1.02 g/cm³</h3>Hope this helps you