States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
 alt="Part C
(2.61gBaCl2)+ (6.78GH,SO,)
- (rg BaSO4) + (yg HCI)
BaClh is the limiting reactant.
O H2SO4 is the limiting reactant.
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Since the reactants have a one to one stoichiometric relationship, the reactant with fewer moles will be the limiting reactant. Use the given mass of each
compound and divide each by its molar mass to find which reactant has fewer moles. For BaCl2,
mol BaCl,
= 2.61 g BaCl, ×
1 mol BaCl2
208.2 g BaCl2
= 0.0125 mol BaCl,
For H2SO4.
mol H2SO, = 6.78 g H2SO4 x
1 mol H2SO4
98.08 g H2SO4
0.0691 mol H2SO,
Thus, BaCla is the limiting reactant.
Part D
Enter your answers numerically separated by commas.
O Pearson
5:11 PM
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5/2/2021
18
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 alt="= 0.0691 mol H2SO.
Thus, BaCl, is the limiting reactant.
Part D
Enter your answers numerically separated by commas.
MH,SO,, MBASO,, MHCI =
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