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Ksju [112]
3 years ago
9

Heat that flows by conduction is the transfer of thermal energy between substances in contact. What must occur forth

Chemistry
2 answers:
White raven [17]3 years ago
8 0
One system must have higher kinetic energy than the other system
allsm [11]3 years ago
5 0

Answer:

C

Explanation:

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Which of these methods could be used to separate an insoluble solid from a soluble solid? Melting the mixture and then using a f
I am Lyosha [343]

Answer : The correct option is "Mixing the mixture with water, filtering out the insoluble solid, and then evaporating the water to isolate the soluble solid.

Explanation :

"The given mixture contains a soluble solid and an insoluble solid.

When water is added to this mixture, the soluble solid will get dissolved in water whereas the insoluble solid will remain as it is.

This will give us a heterogeneous mixture where we can see 2 distinct phases , one containing the dissolved solid and the other having undissolved solid.

In order to separate these 2 phases, we can use a simple filtration method.

When the mixture is filtered, we will get solution having soluble solid and the insoluble solid will remain on the filter paper.

This will separate the 2 solids.

To regenerate the dissolved solid, we can evaporate the water by heating it. This will give us back our original soluble solid.

Therefore, the only option that is consistent with this method is "Mixing the mixture with water, filtering out the insoluble solid, and then evaporating the water to isolate the soluble solid"

8 0
3 years ago
What is the reason behind that the melting and boiling point of iron is more than that of sodium?​
sweet [91]

Answer:

As metals are giant lattice structures, the number of electrostatic forces to be broken is extremely large, and so metals have high melting and boiling points. This means that the melting point and boiling point of metals are more similar to those for ionic compounds than for covalent substances.

Explanation:

3 0
2 years ago
Why do some objects fall through the air at a different rate then others (this is for science)
lilavasa [31]

Answer:

the amount of air resistance depends upon the speed of the object, more massive objects fall faster than less massive objects because they are acted upon by a larger force of gravity; for this reason, they accelerate to higher speeds until the air resistance force equals the gravity force.

4 0
2 years ago
Why does the reactivity of nonmetals increase moving left to right on the periodic table?
zhuklara [117]

Answer: This is because the number of shell increases .

Explanation: On moving from left to write on the periodic table the reactivity of non metals increases because number of shells increases and the force with which the nucleus hold electrons decreases.

4 0
1 year ago
Leona is making lemon pudding from "scratch." Her ingredients include fat-free milk, corn starch, lemon juice, egg yolks, salt,
andre [41]

Answer:

She added the ingredients in the wrong order, this will make the ingredients to mix in a different way and that can lead to different errors, formation of clumps is one of them.

8 0
3 years ago
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