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TiliK225 [7]
3 years ago
8

Two effects of impurities on melting points​

Spanish
2 answers:
IgorLugansk [536]3 years ago
4 0

Answer:

The presence of impurities in a substance results in a lower melting point due to a process called melting point depression. Melting point depression is the reason why adding salt to frozen streets helps to melt the ice.

Melting point depression occurs due to the nature of a material's solid state. Most solids, such as ice, form as crystalline lattices of repeating ions or molecules. This lattice is held together by intermolecular forces that create a strong, stable structure. The solid must be heated to a certain temperature in order for this structure to be disrupted and for the solid to melt. However, the presence of impurities weakens the lattice, making it less stable. As a result, the compound melts at a lower temperature.

Dmitriy789 [7]3 years ago
3 0

Answer:

gallium's melting point is 29 degrees celsius and yet it's boiling point is at 2204 celsius.

water never melts, nor freezes at 0 degrees celsius, meaning water also stays water at 0 degrees celsius unless the temperature changes to below 0 degrees celsius

Explanation:

it is physics

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in spanish, give advice to a good friend of yours by telling him or her not to go somewhere, and by using the phrase aconsejar a
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Querida Ángela, se que estás muy interesada en ir al restaurante nuevo de la zona. Pero te quiero aconsejar que por favor no vayas a ese lugar. Mi hermano fue el día de ayer y volvio con una infección estomacal, me dijo que la comida sabe horrible y que el área no es nada segura.

Explanation:

Hope that helps.

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When there are two verbs in a sentence, you may attach the object pronouns…
valentina_108 [34]

Answer:

Please re do your question I not able to understand what is your problem asking.

7 0
3 years ago
Part 3: Conjugate the verb for the subject pronoun given to you.
koban [17]
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5 0
3 years ago
1. —Voy a poner estos discos compactos en la mochila. —No, no los ahí. en la mesa.
Bas_tet [7]

Hi! I noticed this question has missing information so I went online to find it. The task given is "Fill in the blanks with familiar commands."

Answer:

1. —Voy a poner estos discos compactos en la mochila. —No, no los pongas ahí. Ponlos en la mesa.

<em>(I am going to put these compact discs in the backpack. No, don't put them there. Put them on the table.)</em>

2. —Quiero almorzar pizza hoy. —No almuerces en Telepizza. Los ingredientes no son muy frescos. Mejor sal a comer en el café Napolitano.

<em>(I want to have pizza today. Don't have lunch at Telepizza. The ingredients are not very fresh. Better go out to eat in Neapolitan coffee.)</em>

3. —No sé qué hacer. Mi carro no arranca y tengo que ir al trabajo esta tarde. —No lo lleves al taller enseguida. ¿Estás seguro de que tiene aceite? Revísalo primero.

<em>(I don't know what to do. My car doesn't start and I have to go to work this afternoon. Don't take it to the workshop right away. Are you sure it has oil? Check it first.)</em>

4. —¿Debo ir a la fiesta con Andrés o con Óscar? —No vayas ni con Andrés ni con Óscar. ¿Conoces a Fernando? Llámalo para ver si puede ir contigo.

<em>(Should I go to the party with Andrés or Óscar? Don't go with Andrés nor Oscar. Do you know Fernando? Call him to see if he can go with you.)</em>

Explanation:

<u>Familiar commands</u>, or <em>tú commands</em>, are the singular form of informal imperative, and are used to give orders to a friend, a pet or basically someone your own age or younger. When the command is "to do something" is an affirmative tú command; if the command is "not to do something" is a negative tú command.

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3 years ago
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