Solids, liquids, gases, and plasma are all matter. When all atoms that make up a substance are the same, then that substance is an element. Elements made of only one kind of atom. Because of this, elements are called "pure" substances.
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The answer here is D - bases tend to feel slippery. This is because they tend to dissolve oils on your skin, reducing the friction between your fingers or hands when you rub them together.
Answer:
Sorry mate! I can't understand this language...
The formal charge of H = +1, because F in compounds can have only -1.
The amount of kinetic energu has depens upon an object's speed and its mass.
So its I and IV.
The correct answer is B.
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