Solar and nuclear hope this helped
Answer:
<h3>The answer is 256.41 cm³</h3>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula
From the question
mass = 250 g
density = 0.975 g/cm³
We have
We have the final answer as
<h3>256.41 cm³</h3>
Hope this helps you
<span>60. 4Li(s) + O2(g) >>>>>>>>>>> 2Li2O(s)
moles O2 required = (84 grams Li) * (1 mol Li / 6.941 grams Li) * (1 mol O2 / 4 mol Li) = 3.026 moles O2 required.
PV = nRT, P = 1 atm, V = ?, n = 3.026 moles, R = 0.0821 L*atm/mol*K, T = 273 K
(1 atm)*(V) = (3.026 moles O2) * (0.0821 L*atm/mol*K) * (273 K)
V = 67.82 Liters is the answer.
hope this helps</span>
The mass of an ink pen is constant no matter what instrument you use. If you weigh the ink pen on a simple platform balance, it would weigh <em>approximately 16 grams</em>. To measure this mass using a triple beam balance, follow these instructions:
1. Empty the pan, then move the three sliders on each of the beams to left ton the zero mark.
2. Place the ink pen on the pan. As a result, the beams are no longer on the zero mark. Slide the beams until the pointer is at zero.
3. To read the weight, add all the numbers in the three slider beams.