Help out hehe.

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

In science class richard learns that a substance has a boiling point of 230 fahrenheit his teacher ask him to convert this temperature to degrees celsius what is the boiling point of his substance in degrees celsius

50 points! need answer asap. what type of organic compound contains the following functional group? (2 points)