Chemistry Engineering Question:

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Which one of the following statements is true about the specific gravity of a substance:

Chemistry Interview Question
Chemistry Interview Question

Answer:

1. specific gravity is one of the few unitless values encountered in chemistry
2. the specific gravity of water is 1 gram per milliliter
3. specific gravity is calculated by dividing the density of water by the density of the substance
4. specific gravity is measured with an instrument called the densitometer

Answer: A

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Which of the following is true of an oxidation reaction:Element A is a nonmetal with an electronegativity value of 3.0 and element B is a nonmetal with an electronegativity value of 2.5. What kind of bonding will occur between these two elements: