Answer:
a physical change does not change the composition (what it's made of) as a chemical change would.
Boron is represented by just "B"
So, option C is your answer.
Hope this helps!
Answer:
2.6 kJ
Explanation:
The formula for the amount of heat (q) absorbed by the water is
q = mCΔT
1. Calculate ΔT
ΔT = 23.5 °C - 22.1 °C = 1.4 °C
2. Calculate q
q₂ = mCΔT = 500 g × 4.184 J·°C⁻¹g⁻¹ × 1.4 °C = 2900 J = 2.9 kJ
<u>Body systems associated with gases(</u>particularly that which was asked<u>):</u>
• Respiratory System.
• Cardiovascular System or Circulatory System or Vascular System.
<em>Note: All these three are the names of the same thing i.e cardiovascular system, circulatory system and vascular system.</em>