<span>31.9 grams butane needed to produce 96.7 grams CO2
</span>
There are no zeros, so all three digits<span> are significant.</span>
<span>b. 3440.</span>
Answer: Beryllium
Explanation: Beryllium has atomic number 4, which means it has 4 protons in its nucleus, and 4 electrons in its orbitals. The only stable isotope of Beryllium has 5 neutrons.
Answer: you are using kinetic or "sliding" friction
Answer:
V₂ = 2.64 mL
Explanation:
Given data:
Initial volume = 20 mL
Initial pressure = 1 atm
Initial temperature = 10°C (10 +273 = 283 K)
Final temperature = 100°C (100+273 = 373 K)
Final volume = ?
Final pressure = 10 atm
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Solution:
V₂ = P₁V₁ T₂/ T₁ P₂
V₂ = 1 atm. 20 mL . 373 K / 283 K. 10 atm
V₂ = 7460 mL.K.atm / 2830 K.atm
V₂ = 2.64 mL