The following reaction takes place at high temperatures. Solid chromium(III) oxide reacts with liquid aluminum to...
The following reaction takes place at high temperatures. Solid chromium(III) oxide reacts with liquid aluminum to give liquid chromium and liquid aluminum oxide.
- Write a balanced chemical equation (include the states of matter):
- If 105.2 g of chromium(III) oxide and 60.6 g of aluminum are mixed and reacted until one of the reactants is used up, how much (in g) of chromium metal will be produced?
- How much (in g) of the excess reactant remains?
Homework Answers
We know that , the molar mass of
Chromium (III) Oxide = 151.99g/mol
Aluminium = 26.98g/mol
Chromium = 51.99g/mol
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The following reaction takes place at high temperatures. Solid
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21 Question (1 point) Chromium(III) oxide reacts with silicon as indicated by the balanced equation below. 2Cr,0, (s) +...
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14 Question (1 point) @ See page 289 Chromium(III) oxide reacts with silicon as indicated by...
14 Question (1 point) @ See page 289 Chromium(III) oxide reacts with silicon as indicated by the balanced equation below. 2Cr,0, (s) + 3Si(s) — 4Cr(s) + 3Si0, () When 105.0 g Cr2O3 is reacted with 169.0 g Si, it is determined that Cr2O3 is the limiting reagent. 2nd attempt See Periodic Table See Hint If the reaction begins with 105.0 grams of Cr2O3 and 169.0 grams of silicon, how many grams of the excess reactant will be used? g...
3. Aluminum undergoes a single replacement reaction with iron (III) oxide, releasing 850.2kJ of energy. How...
3. Aluminum undergoes a single replacement reaction with iron (III) oxide, releasing 850.2kJ of energy. How much energy would be released if 5.0g of aluminum was reacted with an excess of iron (III) oxide? a. Is this reaction exothermic or endothermic? b. Write the AH with the correct sign: c. Write the full, balanced equation. d. Use conversion factors to calculate the energy absorbed or released.
CHIOMETRY: CHEMICAL REACTION CALCUATIONS: merical relationship among the reactants and products in a balanced equation (Chemic-...
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Aluminum metal burns in liquid bromine forming aluminum bromide in a reaction much more spectacular than...
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The reaction of Cr_2O_3 with silicon metal at high temperatures will make chromium metal. 2Cr_2O_3 (s)...
The reaction of Cr_2O_3 with silicon metal at high temperatures will make chromium metal. 2Cr_2O_3 (s) + 3Si (s) rightarrow 4Cr (l) + 3SiO_2 (s) The reaction is begun with 182 g of Si and 1.40 times 10^2 g of Cr_2O_3. Which reactant is the limiting reactant? How many grams of the excess reactant are left after the reaction is complete?
The reaction of Cr2O3 with silicon metal at high temperatures will make chromium metal. 2Cr2O3(s) +...
The reaction of Cr2O3 with silicon metal
at high temperatures will make chromium metal.
2Cr2O3(s) + 3Si(s) 4Cr(l) + 3SiO2(s)
The reaction is begun with 188.00 g of Si and 110.00 g of
Cr2O3.
A) What is the limiting reactant?
B) How many grams of the excess reactant are left after the
reaction is complete?
help!! Name 1. Iron reacts with oxygen to form solid iron(IlI) oxide. a) Write a balanced...
help!!
Name 1. Iron reacts with oxygen to form solid iron(IlI) oxide. a) Write a balanced chemical equation for the reaction. b) If 4.0g iron completely reacted, how many grams of iron(IlI) oxide would form? Work Check c) If 3.0g oxygen completely reacted, how many grams of iron(ll) oxide would form? d) If 4.0g iron reacted with 3.0g oxygen, which one would be the limiting reagent? e) How much iron(ll ) oxide would theoretically form? A student mixed 3.0g 02...
21 Question (1 point) Chromium(III) oxide reacts with silicon as indicated by the balanced equation below. 2Cr,0, (s) +35i(s) — 4Cr(s) +3Si0,(s) When 95.00 g Cr203 is reacted with 119.0 g Si, it is determined that Cr2O3 is the limiting reagent. 1st attempt . See Periodic Table See Hint If the reaction begins with 95.00 grams of Cr2O3 and 119.0 grams of silicon, how many grams of the excess reactant will be used? g of Si used
14 Question (1 point) @ See page 289 Chromium(III) oxide reacts with silicon as indicated by the balanced equation below. 2Cr,0, (s) + 3Si(s) — 4Cr(s) + 3Si0, () When 105.0 g Cr2O3 is reacted with 169.0 g Si, it is determined that Cr2O3 is the limiting reagent. 2nd attempt See Periodic Table See Hint If the reaction begins with 105.0 grams of Cr2O3 and 169.0 grams of silicon, how many grams of the excess reactant will be used? g...
3. Aluminum undergoes a single replacement reaction with iron (III) oxide, releasing 850.2kJ of energy. How much energy would be released if 5.0g of aluminum was reacted with an excess of iron (III) oxide? a. Is this reaction exothermic or endothermic? b. Write the AH with the correct sign: c. Write the full, balanced equation. d. Use conversion factors to calculate the energy absorbed or released.
CHIOMETRY: CHEMICAL REACTION CALCUATIONS: merical relationship among the reactants and products in a balanced equation (Chemic- For example: Two magnesium atoms (a solid) when ignited, reacts with oxygen atoms to form eaction) The Balanced equation A balanced equation shows a chemical reaction in shorthand: magnesium oxide The meaning of a balanced Chemical Equation: A bookkeeping system The balanced equation- mole to mole ratios These mole to mole ratios are exact numbers. II. The Stoichiometric Pathway: # of particles of Known...
Aluminum metal burns in liquid bromine forming aluminum bromide in a reaction much more spectacular than aluminum burning in oxygen. In a particular reaction, a 5.000 g sample of aluminum reacts with 13.00 mL bromine (d = 3.103 g mL^-1). What is the mass of aluminum bromide produced in the reaction? What is the mass of the reagent in excess that remains? The balanced equation is: 2AI(s) + 3B_r_2(I) rightarrow 2AIB_r_3(s) balanced (molar masses AI = 26.98 g mol^-1 and...
The reaction of Cr_2O_3 with silicon metal at high temperatures will make chromium metal. 2Cr_2O_3 (s) + 3Si (s) rightarrow 4Cr (l) + 3SiO_2 (s) The reaction is begun with 182 g of Si and 1.40 times 10^2 g of Cr_2O_3. Which reactant is the limiting reactant? How many grams of the excess reactant are left after the reaction is complete?
The reaction of Cr2O3 with silicon metal
at high temperatures will make chromium metal.
2Cr2O3(s) + 3Si(s) 4Cr(l) + 3SiO2(s)
The reaction is begun with 188.00 g of Si and 110.00 g of
Cr2O3.
A) What is the limiting reactant?
B) How many grams of the excess reactant are left after the
reaction is complete?
help!!
Name 1. Iron reacts with oxygen to form solid iron(IlI) oxide. a) Write a balanced chemical equation for the reaction. b) If 4.0g iron completely reacted, how many grams of iron(IlI) oxide would form? Work Check c) If 3.0g oxygen completely reacted, how many grams of iron(ll) oxide would form? d) If 4.0g iron reacted with 3.0g oxygen, which one would be the limiting reagent? e) How much iron(ll ) oxide would theoretically form? A student mixed 3.0g 02...
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