What is the mass of a sample of a substance with a volume of 120 ml and a density of 0.75 g/ml?

Density=mass / volume.

0.75= mass / 120.

mass= 0.75×120.

mass=90g

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.      

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl