The levels of carbon dioxide are at the highest that they have ever been in the history of the earth.

true or false

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

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:

How many atoms are there in 5.70 mol of mg