Help again thank you lots of points for you keep helping I will give you a good review thanks!

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

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.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?