There are two parts to this question. I'm not sure how to go about either. The compound in question is CR2O3 (as it doesnt show as well in the picture).
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There are two parts to this question. I'm not sure how to go about either. The compound in question is CR2O3 (as it...
Verizon 8:58 PM 1%D * Question 6 of 10 Submit Determine the number of molecules of Cr2O3 that form when 1.34 x 103...
Verizon 8:58 PM 1%D * Question 6 of 10 Submit Determine the number of molecules of Cr2O3 that form when 1.34 x 103 g of oxygen completely reacts according to the following equation: 4 Cr(s) + 3 02(g) → 2 Cr2O3(s) STARTING AMOUNT ADD FACTOR ANSWER RESET - 1.34 x 103 4.24 x 103 g Cr 52.00 2.52 x 1025 mol Cr N| دی 32.00 3.78 x 1025 g 02 152.00 mol O2 6.022 x 1023 1.68 x 1025 g...
Verizon 11:00 PM 19%D Question 6 of 10 Submit Determine the number of molecules of Cr2O3...
Verizon 11:00 PM 19%D Question 6 of 10 Submit Determine the number of molecules of Cr2O3 that form when 1.34 x 103 g of oxygen completely reacts according to the following equation: 4 Cr(s) + 3 02(g) → 2 Cr2O3(s) 4 meter 1.34 x 103 sor 3 STARTING AMOUNT 4 mol Cr 2 mol Cros - 1.68 x 103 molecules Cryo, 1.34 x 10° 0 x *3 g 02 * 1 mol Cr ADD FACTOR DELETE ANSWER RESET 1.34 x...
Question 1: Be sure to answer all parts. Calculate the maximum numbers of moles and grams...
Question 1: Be sure to answer all parts. Calculate the maximum numbers of moles and grams of iodic acid (HIO3) that can form when 622 g of iodine trichloride reacts with 124.1 g of water: ICl3 + H2O → ICl + HIO3 + HCl [unbalanced] mol HIO3? g HIO3? What mass of the excess reactant remains in grams? Question 2: Be sure to answer all parts. When 0.107 mol of carbon is burned in a closed vessel with 5.06 g...
Be sure to give your answers with the correct number of significant figures. 1. Over the...
Be sure to give your answers with the correct number of significant figures. 1. Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignite solid-fuel rocket motors. The reaction is: Fe20. (s) + 2Al(s) – 2Fe (1) + Al O2 (s) a. How many moles of iron (III) oxide must react in order to produce 3.5 mol of Fe? (1.25pts) b. What mass of iron (III) oxide reacted in order to...
Hi! I'm really not sure how to go about this question, can anyone please help? Thanks!...
Hi! I'm really not sure how to go about this question, can
anyone please help?
Thanks!
In each of these eight pictures, there is a pair of charges. The charge on the left is always a +2Q charge. The charge on the right is either -Q, -3Q, +Q, or +3Q, in some order in pictures A-D and in some order (maybe a different order) in pictures E-H. The charges are the same distance apart in every picture. In pictures A-D,...
Be sure to answer all parts. Mass and energy are alternate forms of a single entity...
Be sure to answer all parts. Mass and energy are alternate forms of a single entity called mass-energy. The relationship between these two physical quantities is described by Einstein's equation, E = mc², where Els energy, mis mass, and c is the speed of light (3.00 x 108 m/s). In a combustion experiment, it was found that 12.096 g of hydrogen molecules combined with 96.000 g of oxygen molecules to form water and released 1.715 10 kJ of heat. Calculate...
I'm looking for some help on a chemistry question I have: a) What is the percent...
I'm looking for some help on a chemistry question I have: a) What is the percent yield of iron if the reaction of 63.1 g of iron(III) oxide produces 14.9 g of iron? b) What is the percent yield of carbon dioxide if the reaction of 75.5 g of carbon monoxide produces 84.4 g of carbon dioxide? c) Calculate the mass of CO2 that can be produced if the reaction of 41.4 g of pentane and sufficient oxygen has a...
help! Be sure to answer all parts. Enter a net ionic equation for the following reaction...
help!
Be sure to answer all parts. Enter a net ionic equation for the following reaction (including states of matter): CaCl2(aq) + MnSO4(aq) → Write the net ionic equation (including physical states) for the reaction of NaBr(ag) with AgNO3(aq). Click in the answer box to activate the palette. Be sure to answer all parts. Calculate the number of g of o, that will react with 6.28 mol of CzHg. Enter your answer in scientific notation. The balanced equation is: C3Hg(8)...
I tried doing the first few but I'm not sure if I'm doing right and I...
I tried doing the first few but I'm not sure if I'm doing
right and I need help with the last few. the last picture is the
equation page. thank you!
Nov 23, 2015 Experiment 5 Advance Study Assignment: Identification of a Compound by Mass Relationships 1. A student attempted to identify an unknown compound by the method used in this experiment. She found that when she heated a sample weighing 0.5032 g, the mass dropped to 0.2663 g. When...
1. How many moles of MgS2O3 are in 225 g of the compound? 2. Determine the...
1. How many moles of MgS2O3 are in 225 g of the compound? 2. Determine the empirical formula for a compound that is 64.8% C, 13.6% H, and 21.6% O by mass. 3.A compound is 54.53% C, 9.15% H, and 36.32% O by mass. What is its empirical formula? 4.The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processes. In the first step of the Ostwald process, ammonia is reacted...
Verizon 8:58 PM 1%D * Question 6 of 10 Submit Determine the number of molecules of Cr2O3 that form when 1.34 x 103 g of oxygen completely reacts according to the following equation: 4 Cr(s) + 3 02(g) → 2 Cr2O3(s) STARTING AMOUNT ADD FACTOR ANSWER RESET - 1.34 x 103 4.24 x 103 g Cr 52.00 2.52 x 1025 mol Cr N| دی 32.00 3.78 x 1025 g 02 152.00 mol O2 6.022 x 1023 1.68 x 1025 g...
Verizon 11:00 PM 19%D Question 6 of 10 Submit Determine the number of molecules of Cr2O3 that form when 1.34 x 103 g of oxygen completely reacts according to the following equation: 4 Cr(s) + 3 02(g) → 2 Cr2O3(s) 4 meter 1.34 x 103 sor 3 STARTING AMOUNT 4 mol Cr 2 mol Cros - 1.68 x 103 molecules Cryo, 1.34 x 10° 0 x *3 g 02 * 1 mol Cr ADD FACTOR DELETE ANSWER RESET 1.34 x...
Be sure to give your answers with the correct number of significant figures. 1. Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignite solid-fuel rocket motors. The reaction is: Fe20. (s) + 2Al(s) – 2Fe (1) + Al O2 (s) a. How many moles of iron (III) oxide must react in order to produce 3.5 mol of Fe? (1.25pts) b. What mass of iron (III) oxide reacted in order to...
Hi! I'm really not sure how to go about this question, can
anyone please help?
Thanks!
In each of these eight pictures, there is a pair of charges. The charge on the left is always a +2Q charge. The charge on the right is either -Q, -3Q, +Q, or +3Q, in some order in pictures A-D and in some order (maybe a different order) in pictures E-H. The charges are the same distance apart in every picture. In pictures A-D,...
Be sure to answer all parts. Mass and energy are alternate forms of a single entity called mass-energy. The relationship between these two physical quantities is described by Einstein's equation, E = mc², where Els energy, mis mass, and c is the speed of light (3.00 x 108 m/s). In a combustion experiment, it was found that 12.096 g of hydrogen molecules combined with 96.000 g of oxygen molecules to form water and released 1.715 10 kJ of heat. Calculate...
help!
Be sure to answer all parts. Enter a net ionic equation for the following reaction (including states of matter): CaCl2(aq) + MnSO4(aq) → Write the net ionic equation (including physical states) for the reaction of NaBr(ag) with AgNO3(aq). Click in the answer box to activate the palette. Be sure to answer all parts. Calculate the number of g of o, that will react with 6.28 mol of CzHg. Enter your answer in scientific notation. The balanced equation is: C3Hg(8)...
I tried doing the first few but I'm not sure if I'm doing
right and I need help with the last few. the last picture is the
equation page. thank you!
Nov 23, 2015 Experiment 5 Advance Study Assignment: Identification of a Compound by Mass Relationships 1. A student attempted to identify an unknown compound by the method used in this experiment. She found that when she heated a sample weighing 0.5032 g, the mass dropped to 0.2663 g. When...
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