Answer: the theory that all matter us made up of tiny invisible particles. Hope that help you out :)
Explanation:
The volume is 19.76987448 by taking the known variables mass=18.9g and density=0.956g/ml
To get volume you divide the mass by the density which gives you about
19.77 ml in volume
Answer:
the correct answer is D. Both energy and mass can enter or exit a closed system.
Explanation:
How many grams of Cu would be needed to react with 2.0 mol HNO3?
<span>by the equation </span>
<span>3Cu + 8HNO3 --> 3Cu(NO3)2 + 2NO + 4H2O </span>
<span>2.0 mol HNO3 reacts with 3/8 ths as many moles of Cu = 0.75 moles of Cu </span>
False. <--- This is wrong I was thinking of atoms
Molecules do expand when they slowdown...
