Answer:
Darwin had arrived at a complete theory of evolution by 1839, but it was to be another 20 years before he published his ideas of evolution through natural selection in his epochal book On the Origin of Species by Means of Natural Selection.
B. A mixture of flour, sugar, eggs, and butter is baked to become a cake.
Answer:
3.98×10⁻¹⁹ J
Explanation:
Applying,
E = hf................. Equation 1
Where E = energy of the photon, h = planck's constant, f = frequency of the photon
From the question,
Given: f = 6.00×10¹⁴ Hz
Constant: h = 6.626×10⁻³⁴J.s
Substitute these values into equation 1
E = (6.00×10¹⁴)(6.626×10⁻³⁴)
E = 39.756×10⁻²⁰
E = 3.98×10⁻¹⁹ J
Hence the energy of the photon in joules is 3.98×10⁻¹⁹ J
Water also dissolves non-ionic substances.This is because C2H5OH has a polar Oh and the bond that the water molecules like to hang around. Many substances do not dissolve in water and that is because they are non-polar and do not interact well with water molecules. A common example is oil and water.
<span>Answer:
Glass has a much higher specific heat than styrofoam so more of the energy produced will go into heating the glass. This quantity of heat will be lost (unaccounted for) hence the delta t in the calculation will be too small and the heat of neutralization will be lower.</span>
