Consider a sample of calcium carbonate in the form of a cube measuring 2.805 in. on each edge.
if the sample has a density of 2.70 g/cm^3, how many oxygen atoms does it contain?

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with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds

here are some of the ways in which chemical and nuclear reactions differ.

explanation: