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Chemistry

Delve into the study of matter, its properties, composition, structure, and the changes it undergoes during chemical reactions. Chemistry is the central science connecting other scientific disciplines.

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Questions

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Q: How sodium chloride is separated from its solution with water

Q: How many valence electrons can an atom have

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Q: Why is dimethylamine more basic than trimethylamine

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Q: Are covalent bonds broken when a substance boils

Q: Which is more absorbent cotton or sponge and why

Q: How many elements do NaCI compose

Q: Why is melting point of magnesium less than calcium although melting point decrease down the group

Q: Is milk soluble in water

Q: An element with an electronegativity of 0.9 bonds with an element with an electronegativity 0f 3.1 which phrase best describes the bond between these elements

Q: What happens on eating pencil shavings

Q: Is NH4NO3 an acid base or salt

Q: What is a normal pH level for the liver

Q: How did john newlands discover the periodic table

Q: What is the common name for MgSo4 7H2O

Q: What is the Ka value of NaOH

Q: What does 14k f6 mean inside a gold ring

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