Option no. 2 subtracting the atomic number from the mass number
Example: Zn - 65 atomic weight or mass/mass number
30 atomic number
65-30 = 35 number of neutrons
Answer:
Vertebrae
Explanation:
Vertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx (Fig. 2). Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.
Answer:
it is important to be both accurate and precise. Accuracy represents how close a measurement comes to its true value. This is important because bad equipment, poor data processing or human error can lead to inaccurate results that are not very close to the truth.
Explanation:
hopes thisnhelp:)
Answer:
The answer to your question is 1795.5 grams of CO₂
Explanation:
Data
mass of carbon dioxide = ?
mass of Octane = 571.3 g
Process
1.- Write the balanced chemical reaction
C₈H₁₆ + 12O₂ ⇒ 8CO₂ + 8H₂O
2.- Calculate the molar mass of octane and carbon dioxide
Octane = (12 x 8) + (16 x 1) =96 + 16 = 112 g
Carbon dioxide = 8[ 12 + 2(16)] = 352 g
3.- Use proportions to find the mass of carbon dioxide
112 g of Octane ---------------- 352 g of carbon dioxide
571.3 g of Octane ------------- x
x = (571.3 x 352) / 112
x = 201097.6 / 112
x = 1795.5 grams of CO₂
