Author Archives: Anonymous
C. Después de ir de compras. Emilia has finished shopping a…
C. Después de ir de compras. Emilia has finished shopping and is now speaking with her mother via video chat. Complete the dialogue by choosing the correct verb in each case and conjugating it in the present perfect tense (haber + past participle). (10 points) Modelo- Tú (2. ir / comer)__________en el restaurante de mi padre en tu cumpleaños. Respuesta: has comido Emilia: ¡Mamá! ¿Qué tal? ¡Tengo mucho que contarte! Yo (1. ser / estar) ________________ muy feliz durante mis vacaciones. Mamá: ¡Dime! ¿Adónde (2. ir / hacer) ________________ hoy? Emilia: ¡Fui al centro comercial! Luis y yo (3. estudiar / comprar) ________________ algunas cosas. Mamá: ¡Qué bueno! Y después de ir de compras, ¿ustedes (4. hacer / preferir) _______________ algo más? Emilia: No, pero muy pronto vamos a ir a cenar. Yo no (5. ir / probar) ________________ comida panameña, entonces vamos a un restaurante panameña.
Read DetailsPrecipitation reactions in which a solid (called a precipita…
Precipitation reactions in which a solid (called a precipitate) is a product, are commonly used to remove certain ions from solution. One such reaction is as follows: Ba(NO3)2 + Na2SO4 –> BaSO4 + 2NaNO3 How many grams of Na2SO4 are needed to precipitate all the barium ions produced by 83.9 grams of Ba(NO3)2?
Read DetailsGold has an atomic number of 79 and a mass number of 197. Ho…
Gold has an atomic number of 79 and a mass number of 197. How many protons are in each atom? [Joe7] How many neutrons are in each atom? [Joe8] How many electrons surround the nucleus assuming that gold is neutral and has no atomic charge? [Joe9]
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