Platinum has a density of 21 g/cm^ 3 . A platinum ring is placed in a graduated cylinder that contains water. The water level rises from 4.0 mL to 4.2 when the ring is added. What is the mass of the ring? A. 4.2g B. 5.2 g C. 3.8 g D. 2.6

i think it is d. e because the next one is igneous.

it should be all of them because it asks if you included all of those in your answer

explanation:

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )