6. While investigating mole ratios, a group of students collected data for the following chemical reaction: 2 NaOH(aq) +CaCl₂(aq) → 2 NaCl(aq) + Ca(OH)₂(s). The students wondered what would happen if an excess of NaOH was used. Their teacher approved a procedure in which solutions containing 3.00 g of NaOH and 2.10 g of CaCl, were combined. Based on the quantities of these reactants, what amount of Ca(OH)₂(s) is produced? A. 0.0189 mol B. 0.0375 mol C. 0.0500 mol D. 0.1000 mol

Chemistry
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6.
While investigating mole ratios, a group of students collected data for
the following chemical reaction:
2 NaOH(aq) + CaCl₂(aq) → 2 NaCl(aq) + Ca(OH)₂(s).
The students wondered what would happen if an excess of NaOH
was used. Their teacher approved a procedure in which solutions
containing 3.00 g of NaOH and 2.10 g of CaCl, were combined.
Based on the quantities of these reactants, what amount of
Ca(OH)₂(s) is produced?
A. 0.0189 mol
B. 0.0375 mol
C. 0.0500 mol
D. 0.1000 mol
7.
In producing pure iron metal from its ore, iron(III) oxide and carbon
(coke) must react according to the following balanced chemical
equation:
Fe₂O₂ (s) + 3 C(s) → 2 Fe(s) + 3 CO(g)
Suppose 5.89 x 10³ mol of iron ore are consumed. How many moles
of pure iron metal are produced?
A. 1.47 x 10³ mol
B. 2.95 x 103³ mol
C. 5.89 x 10³ mol
D. 1.18 x 104 mol
Science 20
Transcribed Image Text:6. While investigating mole ratios, a group of students collected data for the following chemical reaction: 2 NaOH(aq) + CaCl₂(aq) → 2 NaCl(aq) + Ca(OH)₂(s). The students wondered what would happen if an excess of NaOH was used. Their teacher approved a procedure in which solutions containing 3.00 g of NaOH and 2.10 g of CaCl, were combined. Based on the quantities of these reactants, what amount of Ca(OH)₂(s) is produced? A. 0.0189 mol B. 0.0375 mol C. 0.0500 mol D. 0.1000 mol 7. In producing pure iron metal from its ore, iron(III) oxide and carbon (coke) must react according to the following balanced chemical equation: Fe₂O₂ (s) + 3 C(s) → 2 Fe(s) + 3 CO(g) Suppose 5.89 x 10³ mol of iron ore are consumed. How many moles of pure iron metal are produced? A. 1.47 x 10³ mol B. 2.95 x 103³ mol C. 5.89 x 10³ mol D. 1.18 x 104 mol Science 20
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