10)A graduated cylinder has a mass of 50.g. when empty. When 30 mL of water is added, the graduated cylinder has a mass of 120 g. If a rock is added to the graduated cylinder, the water level rises to 75
mL and the total mass is now 250.g._What is the density of the rock?

Element before carbon on the periodic table

What role does weathering have in shaping earth’s surface? a) it allows sediments to fall out of a medium. b) it sediments settle on a new surface. c) it breaks down older material into sediments. d) it transports sediments to a different location. will give brainliest, answer quickly.

Which of the following isotopes has the same number of neutrons as phosphorus-31?