Only a small percentage of hydrogen bonds are broken when ice melts, but all of them must be broken during what?

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

Which of the following is the sl unit used to measure temperature a. kilogram b. liter c. meter d. kelvin

Try to answer all questions if possible i will take anything this is worth 21 ! ! 1. what rights do citizen's have in a monarchy? 2. what countries practice monarchy? 3. what is one advantage of a monarchy? 4. what is one disadvantage of a monarchy? 5. what rights do citizen's have in a dictatorship? 6. what countries practice dictatorship? 7. what is one advantage of dictatorship? 8. what is one disadvantage of dictatorship?