General Chemistry Answers

Phosphorus reacts with oxygen to form diphosphorus pentoxide, P2O5 .

4P(s)+5O2(g)⟶2P2O5(s)

How many grams of P2O5 are formed when 2.17 g of phosphorus reacts with excess oxygen? Show the unit analysis used for the calculation by placing the correct components into the unit-factor slots.

The reaction between iron(II) oxide and carbon monoxide produces iron and carbon dioxide. How many moles of iron can be obtained when 6.25 mol FeO reacts with an excess of CO?

FeO+CO⟶Fe+CO2

If 2.98 mol of  C5H12 reacts with excess O2, how many moles of 

CO2 will be produced by the following combustion reaction?

C5H12+8O2⟶6H2O+5CO2

The combustion of ethane (C2H6) produces carbon dioxide and steam.

2C2H6(g)+7O2(g)⟶4CO2(g)+6H2O(g)

How many moles of CO2 are produced when 5.55 mol of ethane is burned in an excess of oxygen?

For the chemical reaction

Na2CO3+Ca(NO3)2⟶CaCO3+2NaNO3

how many moles of calcium carbonate (CaCO₃) are produced from 6.0 mol of sodium carbonate (Na₂CO₃)?

Given the reaction, how many moles of Z will be produced from 1.35 mol A, assuming excess B?

2A+3B⟶4Y+5Z

Procedure to identify when three different

Liquid namely dilute acid, distilled water and alkaline solution are poured into three unablled bottle

Assign an oxidation number to each element in the reaction.

CO(g) + 2H₂(g) → CH₃OH(g)

In CO, the oxidation number of C is , and that of O is . In H₂, the oxidation number of H is . In CH₃OH, the oxidation number of C is , that of O is , and that of H is .

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what pieces of apparatus are needed to obtain solid lead (II) iodide from 20cm3 of aqueous lead(II) nitrate