How many moles of Na will react with water to produce 4.0 mol of NaOH?
2Na + 2H2O --> 2NaOH + H2
2. What mass of oxygen will be needed to produce 3.25 mol of P4O10?
4P + 5O2 --> P4O10
3. How many moles of Na2CO3 are required to produce 100.0 g of NaNO3?
Na2CO3 + 2HNO3 --> 2NaNO3 + CO2 + H2O
4. What mass of oxygen is produced when 1.840 mol of H2O2 decomposes?
2H2O2 --> 2H2O + O2
5. How many moles of lithium chloride will be formed by the reaction of chlorine with 0.046 mol of lithium bromide?
2LiBr + Cl2 --> 2LiCl + Br2
6. If 625 g of Fe3O4 is produced in the reaction, how many moles of iron were used?
3Fe + 4H2O --> 4H2 + Fe3O4
7. Calculate the number of grams of Al2O3 that are needed to produce 0.236 mol of Al.
2Al2O3 --> 4Al + 3O2
8. How many grams of Fe3O4 are produced from 4.66 mols of Fe?
3Fe + 4H2O --> 4H2 + Fe3O4
9. How many grams of NaCN are needed to react with 2.88 mols of (NH4)2CO3?
(NH4)2CO3 + 2NaCN --> 2NH4CN + Na2CO3
10. How many moles of O2 are produced from 1.82 mols of Br2?
2 Mn2O3 + 6Br2 --> 4MnBr3 + 3O2
Answers: 3
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Chemistry, 22.06.2019 08:30
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?
Answers: 1
Chemistry, 22.06.2019 13:00
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Answers: 1
How many moles of Na will react with water to produce 4.0 mol of NaOH?
2Na + 2H2O --> 2NaOH + H2...
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