Answer:
Polling is a method used for the purification of copper or tin which contains oxide impurities
Explanation:
<h2>1.-Ate-contains 3 elements in which one is oxygen</h2><h2>2.-ite-contains 3 elements in which one is Oxygen but the oxygen is less than that of -Ate</h2><h2>3.-ide has 2 elements</h2>
The moving of molecules from areas of high concentration to that of low concentration to gain energy is best described as passive transport
<h3>What is passive transport?</h3>
Passive transport is a type of membrane transport in which chemicals are moved across cell membranes without using energy. Unlike active transport, which uses cellular energy, passive transport uses the second law of thermodynamics to cause the movement of substances across cell membranes.
<h3>Why is passive transport important?</h3>
Passive transport processes are critical to homeostasis. They maintain proper conditions inside the cell and the organism as a whole by letting chemicals to pass into and out of the cell.
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Answer:
It is a dehydration reaction.
Explanation:
Dehydration reaction is a type of reaction to yield unsaturated compounds. In the process a water molecule (H2O) is released and a double or triple bonds between two carbon atoms is formed.
Answer;
1) Moleculer solids; I2, S8 and P4 2) Covalent solids; SiO2; 3) Moleculer liquid; H2O 4) Moleculer gas; SO2
Explanation:
In Moleculer compounds the molecules are held together by intermoleculer forces such as van der waals forces and dipole-dipole interaction. They have weak melting and boiling point.
Covelent compounds are held together by covalent bond. They have strong melting and boiling point.