The process of mineral formation from particles dissolved in a liquid or a melt is called crystallisation.
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The bonds that hold atoms together to form molecules are called covalent bonds. They are pretty tough and not easily made or broken apart. It takes energy to make the bonds and energy is released when the bonds are broken. Trees take light and use it to make bonds between carbon atoms and molecules of cellulose. I hope this helps:)
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<em>2Ba + 2HBr → 2BaBr + H2</em>
<em>2BiCl3 + 3H2S → Bi2S3 + 6HCl</em>
<em>Br2 + 2KI → I2 + 2KBr</em>
<em>4Fe + 3O2 → 2Fe2O3</em>
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Answer:
C. Theories have been confirmed through tests; hypotheses haven't.
Explanation:
In simple terms,<u> a theory is something that has been studied, tested, and validated with results</u> whereas <u>a hypothesis is when one "guesses" or "assumes" about something with no prior tests</u>. In short, a hypothesis can be best understood as just a proposal while theory can be taken as a validated result.
Through various trials and tests, a theory arrives whereas a hypothesis can be the initial stage of the testing. For example, in saying that "My hypothesis is that this metal cannot bend" is just assuming or expressing one's opinion. But when the metal is tested and a definite result is found, then that becomes a theory.
So, we can say that a theory is a confirmed result after tests while a hypothesis is not tested or confirmed with a definite result.
Thus, the <u>correct answer is option C.
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