Of the four items listed, which does not belong and why?

Silver, Nickel, Cobalt, Iron

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.

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5