Answer:
f. same number of protons
C. The heat released when the aluminum is cooled from 70°C to 50°C is -180 J.
<h3>What is Specific heat capacity?</h3>
Specific heat capacity is the quantity of heat needed to raise the temperature per unit mass.
<h3>
Heat released when the aluminum is cooled </h3>
The heat released when the aluminum is cooled from 70°C to 50°C is calculated as follows;
Q = mcΔθ
where;
- m is mass of the aluminum
- c is specific heat capacity
- Δθ is change in temperature
Q = (10)(0.9)(50 - 70)
Q = -180 J
Thus, the heat released when the aluminum is cooled from 70°C to 50°C is -180 J.
Learn more about heat capacity here: brainly.com/question/16559442
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B and D are not true of Bohr's model of the atom.
Bohr's model assumed that electron of a hydrogen atom travels in discrete elliptical orbits (not circular, as you have probably been taught) whose size depended on the allowed energy levels of the electron.
Hi
The nucleation reaction called : The physical reaction
I hope that's help !
Answer: skull size of each species
Over time, it is the size of the skull particulary that of the jaw bones, that can help determine the evolutionary relationship of two hominid species. It was believed that the jaws of hominids change as time passes by because the size of the brains changes too.
