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Metal Oxides plus Water Color (if any) produced by phenolphthalein. Color with CaO in water Color...
Balance the equations given, then answer the question. How many moles of Chlorine (Cl) will be...
Balance the equations given, then answer the question. How many moles of Chlorine (Cl) will be needed to produce 10.9 moles of Iron (III) Chloride (FeCl_3)? If 1.89 moles of iron (III) Chloride (FeCl_3) are produced, how many grams of Iron (Fe) reacted? _____ MgO + _____ H_2 O rightarrow _____ Mg(OH)_2 How many Magnesium Hydroxide (Mg(OH)_2) is produced, in grams when 48.0 g of MgO react with an excess of H_2O? How many grams Magnesium Oxide (MgO) is necessary...
Calcium hydroxide + hydrogen chloride ------ rightarrow calcium chloride + water Ca(OH)_2 + 2 HCl rightarrow...
Calcium hydroxide + hydrogen chloride ------ rightarrow calcium chloride + water Ca(OH)_2 + 2 HCl rightarrow Cacl_2 + 2 H_2O How many grams of calcium chloride will be produced from 4.50 mL of a 0.166M hydrogen chloride solution? (M = moles/L)
All of the following are incorrect formulas of a salt except a. CaCl_2 b. MgF_3 c....
All of the following are incorrect formulas of a salt except a. CaCl_2 b. MgF_3 c. LiN_2 d. NaBr_4 e. Cal Which formula/name is NOT correct? a. CaH_2/calcium hydride b. N_2O_4/dinitrogen tetraoxide c. Al_2(SO_4)3/aluminum sulfate d. Cu_2S/Copper(I) Sulfide e. Na_2SO_3/sodium sulfate The correct Lewis formula for N_2H_4 is (each dash represents two electrons) What is the product of reaction of a strong acid with a strong base? a. water and a gas b. water and a precipitate c. water and...
4 For the reaction: Ca+H_2O rightarrow Ca(OH)_2 +H_2 First, balance the equations. WhAt is the final...
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For the reaction: Ca+H_2O rightarrow Ca(OH)_2 +H_2 First, balance the equations. WhAt is the final molarity of (OH^-) if 0.1 gr of ca is reacted completely iN 500 ml of wAter? Calculate the Number of moler of Cl^- in 1.75 L of a 10^-4 M ZnCl_2 solutioN._____moles. WhAt is the moler coNcentration of Cl^- iN this solutioN?_____M
How many grams of oxygen are formed when 6.21 moles of KOH are formed? 4 KO(s)...
How many grams of oxygen are formed when 6.21 moles of KOH are formed? 4 KO(s) + 2 H_2O(l) rightarrow 4 KOH(s) + O_2(g) 19.9g 27.9g 49.7g 3.59g 11.7g Consider the following balanced reaction. How many grams of water are required to from 75.9g of HNO_3? Assume that there is excess NO_2 present. Molar masses: H_2O = 18.02g. HNO_3 = 63.02g. 3 NO_2(g) + H_2O(l) rightarrow 2 HNO_3(aq) + NO(g) 38.0g 21.7g 43.4g 10.9g 26.5g A 12.39g sample of phosphorus...
Show all work please A student in the chemistry lab reacted liquid hexane (C_6H_14) with oxygen...
Show all work please
A student in the chemistry lab reacted liquid hexane (C_6H_14) with oxygen of the air to produce carbon dioxide gas and liquid water. Write a balanced chemical equation for the reaction How many O_2 molecules are required to react completely with 48.8 g of C_6H_14? How many grams of carbon dioxide are produced from 48.8 g of C_6H_14? Determine the amount of Cu_3P formed if 175 grams of copper is reacted with 35.0 grams of P4....
For the questions 1 3 of Exp. 2, b What is the color of Phenolphthalein, an...
For the questions 1 3 of Exp. 2, b What is the color of Phenolphthalein, an indicator, in basic condition? (2pt) 1. Clur ren useon Complete and balance the following chemical equations. Show your answer whether it is the precipitation (color) or gas 2. (bubble) evolution reaction if possible. (6pts) H:SO4+ 2NaOH H2O+ Na SO 2 NaHCO+H2SO. Na2SO4+ 2 H2O+CO: PbCl2 NaNO Pb(NOs):+NaCl In Exp. 2, you mixed nine kinds of known solutions with un known aqueous solution in order...
In which set are both compounds soluble is water? (A) magnesium (MgCI_2) and octane (C_6H_18) (B)...
In which set are both compounds soluble is water? (A) magnesium (MgCI_2) and octane (C_6H_18) (B) ethanol (CH_2CH_2OH) and propane (CH-3CH_2CH_3) (C) carbon tetrachloride (CCI_4) and magnesium chloride (MgCI_2) (D) magnesium chloride (MgCI_2) and ethanol (CH_2CH_2OH) When potassium chloride, KCI dissolves in water, which of these diagram would best what you would expect to find in solution? Which is a precipitation reaction? (A) 2Cr(s) + 6HNO_3(aq) rightarrow 2Cr(NO_3)_3(aq) + 3H_2(g) (B) H_3PO_4(aq) + 3KOH(aq) rightarrow K_3PO_4(aq) + 3H_2O(l)) (C) 3Ba(NO_3)_2(aq)...
The solubility of magnesium chloride at 20 degree C is 54.9 g/100 mL of water. That...
The solubility of magnesium chloride at 20 degree C is 54.9 g/100 mL of water. That of magnesium iodide is 148.0 g/100 mL. Using this information, do you expect magnesium fluoride to be more or less soluble than magnesium bromide? Explain your reasoning. What are two hazards are associated with using a centrifuge? In this experiment, why is it important to dispose of all waste chemicals as heavy metal hazardous waste? Complete and balance the following precipitation equations. Write the...
Experience teaches us that most solids are more soluble in warm water than in cold water....
Experience teaches us that most solids are more soluble in warm water than in cold water. Does the solid utility of Mg(OH)_2 fit this pattern? Briefly explain. Cobalt chloride is used in many weather-forecasting devices. Based on your observations in the laboratory, explain how an alcohol solution of CoCl_2 could be used to predict rain. A student is studying the equilibrium described by the net ionic equation shown in Equation 18. [Cu(H_2O)_6]^2+ (aq, blue) + 4 Br^-(aq) CuBr_4^2+(aq, green) +...
Balance the equations given, then answer the question. How many moles of Chlorine (Cl) will be needed to produce 10.9 moles of Iron (III) Chloride (FeCl_3)? If 1.89 moles of iron (III) Chloride (FeCl_3) are produced, how many grams of Iron (Fe) reacted? _____ MgO + _____ H_2 O rightarrow _____ Mg(OH)_2 How many Magnesium Hydroxide (Mg(OH)_2) is produced, in grams when 48.0 g of MgO react with an excess of H_2O? How many grams Magnesium Oxide (MgO) is necessary...
Calcium hydroxide + hydrogen chloride ------ rightarrow calcium chloride + water Ca(OH)_2 + 2 HCl rightarrow Cacl_2 + 2 H_2O How many grams of calcium chloride will be produced from 4.50 mL of a 0.166M hydrogen chloride solution? (M = moles/L)
All of the following are incorrect formulas of a salt except a. CaCl_2 b. MgF_3 c. LiN_2 d. NaBr_4 e. Cal Which formula/name is NOT correct? a. CaH_2/calcium hydride b. N_2O_4/dinitrogen tetraoxide c. Al_2(SO_4)3/aluminum sulfate d. Cu_2S/Copper(I) Sulfide e. Na_2SO_3/sodium sulfate The correct Lewis formula for N_2H_4 is (each dash represents two electrons) What is the product of reaction of a strong acid with a strong base? a. water and a gas b. water and a precipitate c. water and...
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For the reaction: Ca+H_2O rightarrow Ca(OH)_2 +H_2 First, balance the equations. WhAt is the final molarity of (OH^-) if 0.1 gr of ca is reacted completely iN 500 ml of wAter? Calculate the Number of moler of Cl^- in 1.75 L of a 10^-4 M ZnCl_2 solutioN._____moles. WhAt is the moler coNcentration of Cl^- iN this solutioN?_____M
How many grams of oxygen are formed when 6.21 moles of KOH are formed? 4 KO(s) + 2 H_2O(l) rightarrow 4 KOH(s) + O_2(g) 19.9g 27.9g 49.7g 3.59g 11.7g Consider the following balanced reaction. How many grams of water are required to from 75.9g of HNO_3? Assume that there is excess NO_2 present. Molar masses: H_2O = 18.02g. HNO_3 = 63.02g. 3 NO_2(g) + H_2O(l) rightarrow 2 HNO_3(aq) + NO(g) 38.0g 21.7g 43.4g 10.9g 26.5g A 12.39g sample of phosphorus...
Show all work please
A student in the chemistry lab reacted liquid hexane (C_6H_14) with oxygen of the air to produce carbon dioxide gas and liquid water. Write a balanced chemical equation for the reaction How many O_2 molecules are required to react completely with 48.8 g of C_6H_14? How many grams of carbon dioxide are produced from 48.8 g of C_6H_14? Determine the amount of Cu_3P formed if 175 grams of copper is reacted with 35.0 grams of P4....
For the questions 1 3 of Exp. 2, b What is the color of Phenolphthalein, an indicator, in basic condition? (2pt) 1. Clur ren useon Complete and balance the following chemical equations. Show your answer whether it is the precipitation (color) or gas 2. (bubble) evolution reaction if possible. (6pts) H:SO4+ 2NaOH H2O+ Na SO 2 NaHCO+H2SO. Na2SO4+ 2 H2O+CO: PbCl2 NaNO Pb(NOs):+NaCl In Exp. 2, you mixed nine kinds of known solutions with un known aqueous solution in order...
In which set are both compounds soluble is water? (A) magnesium (MgCI_2) and octane (C_6H_18) (B) ethanol (CH_2CH_2OH) and propane (CH-3CH_2CH_3) (C) carbon tetrachloride (CCI_4) and magnesium chloride (MgCI_2) (D) magnesium chloride (MgCI_2) and ethanol (CH_2CH_2OH) When potassium chloride, KCI dissolves in water, which of these diagram would best what you would expect to find in solution? Which is a precipitation reaction? (A) 2Cr(s) + 6HNO_3(aq) rightarrow 2Cr(NO_3)_3(aq) + 3H_2(g) (B) H_3PO_4(aq) + 3KOH(aq) rightarrow K_3PO_4(aq) + 3H_2O(l)) (C) 3Ba(NO_3)_2(aq)...
The solubility of magnesium chloride at 20 degree C is 54.9 g/100 mL of water. That of magnesium iodide is 148.0 g/100 mL. Using this information, do you expect magnesium fluoride to be more or less soluble than magnesium bromide? Explain your reasoning. What are two hazards are associated with using a centrifuge? In this experiment, why is it important to dispose of all waste chemicals as heavy metal hazardous waste? Complete and balance the following precipitation equations. Write the...
Experience teaches us that most solids are more soluble in warm water than in cold water. Does the solid utility of Mg(OH)_2 fit this pattern? Briefly explain. Cobalt chloride is used in many weather-forecasting devices. Based on your observations in the laboratory, explain how an alcohol solution of CoCl_2 could be used to predict rain. A student is studying the equilibrium described by the net ionic equation shown in Equation 18. [Cu(H_2O)_6]^2+ (aq, blue) + 4 Br^-(aq) CuBr_4^2+(aq, green) +...
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