Which information is essential to perform stoichiometric calculations for a chemical reaction?
A balanced chemical equation
A balanced chemical equation, which shows the correct mole ratios of reactants and products, is essential for performing stoichiometric calculations.
The colour of reactants, reaction temperature and type of apparatus do not provide the quantitative information needed for stoichiometry.
Hence, 'A balanced chemical equation' is the correct answer.
Which of the following substances is considered neutral according to the pH scale?
Which of the following pair is correct?
I. Isotopes – different mass numbers
II. Isobars – different atomic numbers
Which of the following is a zone of a flame?
I. Dark
II. Luminous
III. Non-Luminous
If formula of sodium salt of an anion X is \(Na_2X\) , then the formula of its aluminium salt would be
Which of the following set contains same number of molecules?
A. 1 gram O 2, 2 grams SO 2
B. 1 gram CO 2, 1 gram N 2O
C. 1 gram O 2, 1 gram O 3
The volume of CO 2liberated at STP when 10 gm of 90% pure limestone strongly heated is