How much heat is required to melt 4 grams of ice at 0°C?

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

Explanation for basic character?

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?