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Chemistry

A) 250 L. B) 3.8 L. C) 22 L. D) 0.0076 L. A B с D None

Spanish

2. __ es la moneda nacional de Perú. El quetzal El dólar El peso peruano El nuevo sol 3. Las llamas, alpacas, guanacos y vicuñas todavía son importantes para __ de Perú. la música andina los museos la economía los arqueólogos None

Physics

a. gravitational mass. c. gravitational field strength. b. inertial mass. d. weight. None

Social Studies

A. the Anasazi, the Hohokam, and the Mogollon B. the Adena, the Hopewell, and the Mississippian C. the Iroquois, the Anasazi, and the Hopewell D. the Hohokam, the Anasazi, and the Iroquois None

Chemistry

Part A Label the anode and cathode, indicate the direction of electron flow. Drag the appropriate labels to their respective targets. Part B Write an equation for the half-reaction occurring at each electrode. Express your answers as chemical equations separated by a comma. Identify all of the phases in your answer. Part C What minimum voltage is necessary to drive the reaction? None

Spanish

2. El programa SAVE busca turistas que también son _________. (científicos, académicos y voluntarios / empleados de hoteles, agentes de viajes y académicos / botones, académicos y voluntarios) 3. La Ceiba está en _________. (el campo / la playa / las montañas) 4. En el Refugio de la Vida Silvestre Cuero y Salado es posible hacer un viaje en _________. (caballo / tren / barco) 5. El Centro SAVE está en _________. (La Reserva / La Ceiba / Copán) 6. La Reserva de la Biosfera Río Plátano tiene un clima tropical donde _________. (llueve mucho / nieva mucho / hace mucho / frío) None

Spanish

al comedor al club de Jóvenes a la cabina al teatro None

Chemistry

Acidic solution In acidic solution, the sulfate ion can be used to react with a number of metal ions. One such reaction is SO42?(aq)+Sn2+(aq)?H2SO3(aq)+Sn4+(aq) Since this reaction takes place in acidic solution, H2O(l) and H+(aq) will be involved in the reaction. Places for these species are indicated by the blanks in the following restatement of the equation: SO42?(aq)+Sn2+(aq)+ ????H2SO3(aq)+Sn4+(aq)+ ??? Part A What are the coefficients of the reactants and products in the balanced equation above? Remember to include H2O(l) and H+(aq) in the appropriate blanks. Your answer should have six terms. Enter the equation coefficients in order separated by commas (e.g., 2,2,1,4,4,3). Basic solution Potassium permanganate, KMnO4, is a powerful oxidizing agent. The products of a given redox reaction with the permanganate ion depend on the reaction conditions used. In basic solution, the following equation represents the reaction of this ion with a solution containing sodium fluoride: MnO4?(aq)+F?(aq)?MnO2(s)+F2(aq) Since this reaction takes place in basic solution, H2O(l) and OH?(aq) will be shown in the reaction. Places for these species are indicated by the blanks in the following restatement of the equation: MnO4?(aq)+F?(aq)+ ????MnO2(s)+F2(aq)+ ??? Part B What are the coefficients of the reactants and products in the balanced equation above? Remember to include H2O(l) and OH?(aq) in the blanks where appropriate. Your answer should have six terms. Enter the equation coefficients in order separated by commas (e.g., 2,2,1,4,4,3). None

Chemistry

O There are more atoms in the reactants than in the products, and the total mass is the same in the reactants and in theproductsThe number of atoms is the same in the reactants and in the products, and the total mass is the same in the reactants and inthe productsO There are fewer atoms in the reactants than in the products, and the total mass is less in the reactants than in the productsO There are more atoms in the reactants than in the products, and the total mass is higher in the reactants than in theproducts​ None