In a Solar Eclipse, the umbra is...???

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.

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both