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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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Vladimir79 [104]

Answer:

Country:  Paraguay

Capital: Asunción

Explanation:

Country:  Paraguay

Capital: Asunción

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3 years ago
Spanish<br> How do you speak Spanish, any word will do...
Tju [1.3M]

Answer:

well.. you could learn but what about "Hola"?

Explanation:

that's a good word to start off with

3 0
3 years ago
5 - El incidenteFill in the blanks Activity Hide details InstructionsFill in the blanks with the reflexive verbs from the list.
goldfiish [28.3K]
<h2>Answer:</h2>

We have the following list of reflexive verbs:

acordarse

afeitarse

despertarse

enojarse

irse

lavarse

levantarse

llamarse

maquillarse

ponerse

preocuparse

probarse

quedarse

secarse

sentarse

vestirse

Luis se levanta todos los días a las seis de la mañana. Luego entra en la ducha y se lava el pelo con champú. Cuando sale de la ducha, usa la crema de afeitar para afeitarse delante del espejo. Come algo con su familia y él y sus hermanos se quedan hablando un rato. Cuando sale tarde, Luis se preocupa porque no quiere llegar tarde a la clase de español. Los estudiantes se ponen nerviosos porque a veces tienen pruebas sorpresa en la clase. Ayer por la mañana, Luis se enojó con su hermana Marina porque ella se despiertó tarde y pasó mucho tiempo en el cuarto de baño con la puerta cerrada. —¿Cuándo sales, Marina?— le preguntó Luis. —¡Tengo que maquillarme porque voy a salir con mi novio y quiero estar bonita!—, dijo Marina. —¡Tengo que irme ya, Marina! ¿Cuándo terminas? —Ahora salgo, Luis. Tengo que vestirme . Me voy a poner mi vestido favorito. —Tienes que acordarte de que viven muchas personas en esta casa, Marina.

_____________________________

We use Reflexive verbs to point out that a person carries out an action to or<em> for himself </em>or<em> herself. </em>For instance, Luis se levanta is a sentence that tells us that Luis carries out the action to wake up <em>for himself. </em>Another example is Tengo que vestirme tells us that Marina carries out the action <em>for herself. </em>It's important to say that reflexive verbs are used with reflexive pronouns and these are recorded in the table below. There are two forms of setting a reflexive pronoun:

1. Before a conjugated verb.

2. Attached to the end of the verb whenever the verb is not conjugated, such as infinitives or gerunds or if the verb is an affirmative informal command.

For instance:

Se levanta stands for the 1. form

Maquillarme stands for the 2. form

8 0
4 years ago
PLEASE HELP WITH THIS
Komok [63]
C -había sido (It was)
(When the teacher found her phone, she saw that ~it was~ uploaded
3 0
2 years ago
¿cómo se conecta la identidad publica y privada de un individuo?​
Mashcka [7]

Puede haber muchas respuestas a esta respuesta. Una es que están conectados por la persona. Esa persona puede tener ambas identidades. Nunca sabes. Espero que esto ayude. Si está mal, házmelo saber.

3 0
4 years ago
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