Answer:
<em>When </em><em>a </em><em>substance</em><em> </em><em>is </em><em>cooled </em><em>it's </em><em>internal </em><em>energy</em><em> </em><em>decreases</em><em> </em><em>the </em><em>movement</em><em> </em><em>of </em><em>its </em><em>partical</em><em> </em><em>decreases </em><em>the </em><em>bonds </em><em>between </em><em>particles </em><em>form </em><em>when </em><em>a </em><em>substance </em><em>condenses </em><em>or </em><em>freezes </em><em>or </em><em>sublimes </em><em>to </em><em>form </em><em>a </em><em>solid </em><em>from </em><em>a </em><em>gas </em>
<em><u>may </u></em><em><u>be </u></em><em><u>this </u></em><em><u>might </u></em><em><u>help </u></em><em><u>u</u></em>
Answer:
To separate an insoluble solid from a soluble solid: Mixing the mixture with water, filtering out the insoluble solid, and then evaporating the water to isolate the soluble solid.
Explanation:
The Highlands consist of constantly erupting volcanoes.
The Highlands formed by uplifting volcanic activity.
<h3> E
rupting volcanoes</h3>
The Highlands consist of constantly erupting volcanoes and the lands formed by uplifting of regions due to volcanic activity are the factors that are responsible for the unusual ecosystem of the Ethiopian Highlands.
<h3>Causes of unusual ecosystem</h3>
There are eight types of ecosystem are present in Ethiopia. All these ecosystems are formed due to Volcanoes and volcanic activity which make the unusual ecosystems in the highlands of Ethiopia so we can conclude that volcanoes and volcanic activity is responsible for unusual ecosystems in Ethiopia.
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Answer:
5.2moles of NaCl
Explanation:
The equation for the reaction is:
2Na + Cl2 —> 2NaCl
From the equation,
2moles of Na produced 2moles of NaCl.
Therefore, 5.2moles of Na will also produce 5.2moles of NaCl
<em><u>The kinetic molecular </u></em><em><u>theory</u></em>.
- The average amount of empty space between molecules gets progressively larger as a sample of matter moves from the solid to the liquid and gas phases. There are attractive forces between atoms/molecules, and these become stronger as the particles move closer together.
