• A 5.00 g block of strontium metal (Sr) sits in 0.275 L of water.?

    A 5.00 g block of strontium metal (Sr) sits in 0.275 L of water. Over time, oxygen gas (O2) in the water reacts with the metal to give strontium oxide. If the oxygen gas concentration in the water is 0.050 M, how many grams of the strontium metal will remain when all of the oxygen has reacted?
    A 5.00 g block of strontium metal (Sr) sits in 0.275 L of water. Over time, oxygen gas (O2) in the water reacts with the metal to give strontium oxide. If the oxygen gas concentration in the water is 0.050 M, how many grams of the strontium metal will remain when all of the oxygen has reacted?
    1 answer · Chemistry · 10 months ago
  • 0.35 L of a P4 solution with a concentration of 0.70 M and 2.5 L of a Br2 solution with a concentration of 0.39 M react completely when?

    0.35 L of a P4 solution with a concentration of 0.70 M and 2.5 L of a Br2 solution with a concentration of 0.39 M react completely when mixed to give a single product. What is the product of the reaction? A. PBr B. PBr3 C. PBr5 D. P2Br4 E. P2Br8
    0.35 L of a P4 solution with a concentration of 0.70 M and 2.5 L of a Br2 solution with a concentration of 0.39 M react completely when mixed to give a single product. What is the product of the reaction? A. PBr B. PBr3 C. PBr5 D. P2Br4 E. P2Br8
    1 answer · Chemistry · 10 months ago
  • A metal reacts with concentrated hydrochloric acid (12 M HCl) to give the soluble metal hexachloride based on the following reaction:?

    A metal reacts with concentrated hydrochloric acid (12 M HCl) to give the soluble metal hexachloride based on the following reaction: M (s) + 6 HCl (aq) → MCl6 (aq) + 3 H2 (g) If it takes 23 mL of concentrated hydrochloric acid to fully dissolve 8.5 g of the metal, what is the identity of the metal? Give the answer as the chemical symbol:
    A metal reacts with concentrated hydrochloric acid (12 M HCl) to give the soluble metal hexachloride based on the following reaction: M (s) + 6 HCl (aq) → MCl6 (aq) + 3 H2 (g) If it takes 23 mL of concentrated hydrochloric acid to fully dissolve 8.5 g of the metal, what is the identity of the metal? Give the answer as the chemical symbol:
    1 answer · Chemistry · 10 months ago
  • How many grams of glucose (C6H12O6) are present in 100.0 mL of IV solution if the concentration of glucose is 0.556 mMol?

    Hospitals use intravenous (IV) sugar solutions as a way to combat low blood sugar in patients. How many grams of glucose (C6H12O6) are present in 100.0 mL of IV solution if the concentration of glucose is 0.556 mMol?
    Hospitals use intravenous (IV) sugar solutions as a way to combat low blood sugar in patients. How many grams of glucose (C6H12O6) are present in 100.0 mL of IV solution if the concentration of glucose is 0.556 mMol?
    1 answer · Chemistry · 10 months ago
  • What is the concentration of Cl ions in solution if 10.0 g of the ionic compound calcium chloride is dissolved in 1.25 L of water?

    What is the concentration of Cl ions in solution if 10.0 g of the ionic compound calcium chloride is dissolved in 1.25 L of water? Choose the closest answer. A. 0.080 M B. 0.15 M C. 0.80 M D. 1.5 M E. 8.0 M F. 15 M
    What is the concentration of Cl ions in solution if 10.0 g of the ionic compound calcium chloride is dissolved in 1.25 L of water? Choose the closest answer. A. 0.080 M B. 0.15 M C. 0.80 M D. 1.5 M E. 8.0 M F. 15 M
    1 answer · Chemistry · 10 months ago
  • For the following exercises, find the indicated phrases in each sentence and describe their functions. Be sure to note the whole extent of?

    For the following exercises, find the indicated phrases in each sentence and describe their functions. Be sure to note the whole extent of each phrase, and remember that phrases can be part of other phrases. 1. Infinitive phrases a. The zoo officials decided to return Petra to the lake. b. Did you see them run down the street to catch the... show more
    For the following exercises, find the indicated phrases in each sentence and describe their functions. Be sure to note the whole extent of each phrase, and remember that phrases can be part of other phrases. 1. Infinitive phrases a. The zoo officials decided to return Petra to the lake. b. Did you see them run down the street to catch the bus? c. I expect all of my assignments to be graded by the end of Thanksgiving break. 2. Present participle phrases a. The match lasted almost five hours, becoming the longest in Wimbledon history. b. Neighbors passing by in their Hummers are looking the other way. c. Eating everything in sight, the mischievous cat ran just out of reach. 3. Past participle phrases a. The park filled with colorful lights is a spectacular sight. b. This bill, if signed into law, could outlaw home permanents. c. Freddie prefers his cheeseburgers cooked on an outdoor charcoal grill. 4. Gerund phrases a. Canada and the United States have made going over the falls in a barrel illegal. b. Finding the Northwest Passage has fascinated explorers for several centuries. c. Getting sick right before break is really annoying.
    1 answer · Higher Education (University +) · 10 months ago
  • Silicon metal (Si) reacts with nitrogen gas (N2) to give silicon nitride (Si3N4) based on the following balanced reaction: 3 Si + 2 N2 -->?

    Silicon metal (Si) reacts with nitrogen gas (N2) to give silicon nitride (Si3N4) based on the following balanced reaction: 3 Si + 2 N2 --> Si3N4 Determine the following if 5.00 grams of silicon metal reacts with 4.00 grams of nitrogen gas. Give three significant figures for your answers. Moles of Si reactant:_____ Moles of N2 reactant:_____
    Silicon metal (Si) reacts with nitrogen gas (N2) to give silicon nitride (Si3N4) based on the following balanced reaction: 3 Si + 2 N2 --> Si3N4 Determine the following if 5.00 grams of silicon metal reacts with 4.00 grams of nitrogen gas. Give three significant figures for your answers. Moles of Si reactant:_____ Moles of N2 reactant:_____
    2 answers · Chemistry · 10 months ago
  • Balance the following equation for the combustion of one mole of riboflavin, also known as vitamin B2, by determining the necessary?

    Balance the following equation for the combustion of one mole of riboflavin, also known as vitamin B2, by determining the necessary coefficients for O2, CO2, H2O, and N2 in the following equation: C17H20N4O6 + ___ O2 ➞ CO2 + ____ H2O+ ___ N2
    Balance the following equation for the combustion of one mole of riboflavin, also known as vitamin B2, by determining the necessary coefficients for O2, CO2, H2O, and N2 in the following equation: C17H20N4O6 + ___ O2 ➞ CO2 + ____ H2O+ ___ N2
    2 answers · Chemistry · 10 months ago
  • Balance the following equation for the combustion of one mole of undecane, a common component of diesel fuel, by determining the necessary?

    Balance the following equation for the combustion of one mole of undecane, a common component of diesel fuel, by determining the necessary coefficients for O2, CO2, and H2O in the following equation: C11H24 + O2 ➞ CO2 + H2O
    Balance the following equation for the combustion of one mole of undecane, a common component of diesel fuel, by determining the necessary coefficients for O2, CO2, and H2O in the following equation: C11H24 + O2 ➞ CO2 + H2O
    1 answer · Chemistry · 10 months ago
  • A sealed helium balloon has a volume of 1.00 L under 1.00 atm of pressure and at 27 °C (typically conditions around sea level during the day?

    A sealed helium balloon has a volume of 1.00 L under 1.00 atm of pressure and at 27 °C (typically conditions around sea level during the day). Assuming ideal gas behavior, what would the volume of the balloon be on the surface of Mars at night, where the pressure is only 0.00500 atm and the temperature is –73 °C? (Choose the closest answer.) A.... show more
    A sealed helium balloon has a volume of 1.00 L under 1.00 atm of pressure and at 27 °C (typically conditions around sea level during the day). Assuming ideal gas behavior, what would the volume of the balloon be on the surface of Mars at night, where the pressure is only 0.00500 atm and the temperature is –73 °C? (Choose the closest answer.) A. About 0.00 L B. About 1.00 L C. About 10.0 L D. About 100. L E. About 1000 L
    1 answer · Chemistry · 10 months ago
  • In carbonated beverages, carbon dioxide (CO2) is dissolved in water (H2O) to give a solution. In this solution, what intermolecular force ..?

    In carbonated beverages, carbon dioxide (CO2) is dissolved in water (H2O) to give a solution. In this solution, what intermolecular forces are present between molecules of carbon dioxide and molecules of water? (Do not consider the forces between molecules of the same type.) A. Dispersion Forces. B. Dipole-Dipole Force. C. Hydrogen... show more
    In carbonated beverages, carbon dioxide (CO2) is dissolved in water (H2O) to give a solution. In this solution, what intermolecular forces are present between molecules of carbon dioxide and molecules of water? (Do not consider the forces between molecules of the same type.) A. Dispersion Forces. B. Dipole-Dipole Force. C. Hydrogen Bonding. D. Dispersion Forces and Dipole-Dipole Force. E. Dispersion Forces and Hydrogen Bonding. F. Dipole-Dipole Force and Hydrogen Bonding. G. Dispersion Forces, Dipole-Dipole, and Hydrogen Bonding. H. None of these forces are present. The atmosphere contains a mixture of many types of gases. Included among these in the upper atmosphere are the gases ozone (O3) and, due mainly to pollution, sulfur trioxide (SO3). What intermolecular forces are present between molecules of these two gases in the atmosphere? (Do not consider forces between molecules of the same type.) A. Dispersion Forces. B. Dipole-Dipole Force. C. Hydrogen Bonding. D. Dispersion Forces and Dipole-Dipole Force. E. Dispersion Forces and Hydrogen Bonding. F. Dipole-Dipole Force and Hydrogen Bonding. G. Dispersion Forces, Dipole-Dipole, and Hydrogen Bonding. H. None of these forces are present.
    1 answer · Chemistry · 11 months ago
  • A meteor whose mass was about 1.8×10^8 kg struck the Earth (mE=6.0×1024 (kg) with a speed of about 25 km/s and came to rest in the Earth.?

    Part A What was the Earth's recoil speed (relative to Earth at rest before the collision)? Express your answer using two significant figures. Part B What fraction of the meteor's kinetic energy was transformed to kinetic energy of the Earth? Express your answer using two significant figures. Part C By how much did the Earth's kinetic... show more
    Part A What was the Earth's recoil speed (relative to Earth at rest before the collision)? Express your answer using two significant figures. Part B What fraction of the meteor's kinetic energy was transformed to kinetic energy of the Earth? Express your answer using two significant figures. Part C By how much did the Earth's kinetic energy change as a result of this collision? Express your answer using two significant figures. Thank you !!!!
    1 answer · Physics · 2 years ago
  • Elastic physic question?? I am really lost on this question. Please HELP?

    A 0.060-kg tennis ball, moving with a speed of 4.1 m/s , has a head-on collision with a 0.10-kg ball initially moving in the same direction at a speed of 2.5 m/s. Assuming a perfectly elastic collision, determine the speed of each ball after the collision.
    A 0.060-kg tennis ball, moving with a speed of 4.1 m/s , has a head-on collision with a 0.10-kg ball initially moving in the same direction at a speed of 2.5 m/s. Assuming a perfectly elastic collision, determine the speed of each ball after the collision.
    2 answers · Physics · 2 years ago
  • Mass MA = 35 kg and mass MB = 30 kg . They have velocities (in m/s) v⃗ A = 12 i^ - 23 j^ and v⃗ B = - 29 i^ + 13 j^.?

    Determine the velocity of the center of mass of the system. Express your answer using two significant figures. Enter your answers numerically separated by a comma.
    Determine the velocity of the center of mass of the system. Express your answer using two significant figures. Enter your answers numerically separated by a comma.
    1 answer · Physics · 2 years ago
  • Physics Question !?!?An empty 1500-kg car has its CM 2.60 m behind the front of the car. How far from the front of the car will the CM be ?

    An empty 1500-kg car has its CM 2.60 m behind the front of the car. How far from the front of the car will the CM be when two people sit in the front seat 2.55 m from the front of the car, and three people sit in the back seat 3.65 m from the front? Assume that each person has a mass of 78.5 kg . Help is severely needed please and thank you! (No... show more
    An empty 1500-kg car has its CM 2.60 m behind the front of the car. How far from the front of the car will the CM be when two people sit in the front seat 2.55 m from the front of the car, and three people sit in the back seat 3.65 m from the front? Assume that each person has a mass of 78.5 kg . Help is severely needed please and thank you! (No smart *** responses please)
    2 answers · Physics · 2 years ago