Answer:
C. Particle size
Explanation:
The sand, which has smaller particles, will go through the sieve, while the rice (with a larger particle size) will not
The information that the coefficients of a balanced equation give about the reactants are to tell how many moles of reactants are needed and how many moles of product can be produced.
All organic compounds have at least 1 carbon and 2 hydrogen atoms.
The chemical purpose of heating the MnSO4⋅H2O is to eliminate water with the formation of new compounds.
<h3>Dehydration reactions</h3>
Dehydration reaction is a type of chemical reaction that involves the removal of water which would eventually lead to the formation of a new compound.
The molecule of MnSO4⋅H2O contains a molecule of water(H2O). After heating of the molecule, water is lost giving rise to the dry compound MnSO4.
Other examples of dehydration reactions are:
- Reactions that produce acid anhydrides.
- Reactions that involve the production of polymers.
- Reaction of sucrose with concentrated sulfuric acid
Therefore, the chemical purpose of heating the MnSO4⋅H2O is to eliminate water with the formation of new compounds.
Learn more about dehydration here:
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