Answer:
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Numbers from -998 and 999 are in between -999 and 1000.
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A catalyst will speed up the activation energy and therefore speed up the reaction. The products will form fast because of this.
Answer: The oxidation state of a free element (uncombined element) is zero. For a simple (monoatomic) ion, the oxidation state is equal to the net charge on the ion. For example, Cl– has an oxidation state of -1. When present in most compounds, hydrogen has an oxidation state of +1 and oxygen an oxidation state of −2.
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In a flashlight, the electrical energy becomes light energy and thermal energy in the bulb.