<span>Quarks are present in protons and neutrons but not in electrons.</span>
B. Chemical energy to start a chemical reaction
Answer: The amount of heat needed is = 4.3kJ
Explanation:
Amount of heat H = M × C × ΔT
M= mass of benzene = 64.7g
C= specific heat capacity = 1.74J/gK
ΔT = T2-T1
Where T1 is initai temperature = 41.9C
T2 is the final temperature( boiling point of benzene) = 80.1C
H= 64.7×1.74×80.7
H= 4300J
H=4.3kJ
Therefore, the amount of heat needed is 4.3kJ
Answer:
40.3 for the unit that represents the minimum amount of magnesium oxide I beilieve.
Explanation:
Magnesium atoms are heavier than oxygen atoms, so we expect more than 50% of magnesium in the weight composition. Taking just one atom of Mg and one atom of O you will get a mass of 16.0 + 24.3 = 40.3.
Hope this helps! Please tell me if you have any questions :))
Explanation:
The viscosity of the liquid has been used to evaluate its resistance to flow. Air, gasoline, as well as other fluids that move quickly, are of low viscosity. The particles throughout the liquid are covered by other particles and drawn uniformly in both directions by cohesive forces inside the liquid.
