Physics: Physics is more focused to finding the universal laws of general processes
Chemistry: Chemistry focuses more on details and specific phenomena, such as what is the boiling point of this substance and why.
Answer: C.
Explanation:
Its C because a controlled experiment would make the pill's statement true.
(give me brainlist)
Answer:
The standard free energy change is -502.86 KJ
Explanation:
ΔG° = H° -TΔS°
where;
ΔG° is the standard free energy
H° is the standard enthalpy change = -631 kJ
ΔS° is the standard change in entropy = -430 J/K
T is the temperature of the system = 25⁰C = 298 K
Applying the formula above;
ΔG° = -631 kJ - ( -0.43J/K × 298K)
= -631 kJ + 128.14 KJ
= -502.86 KJ
Therefore, the standard free energy change is -502.86 KJ
Answer:
Explanation:
Sure you can - Mercury and water are both liquid at room temperature and atmospheric pressure. But Mercury is much much heavier or denser than water. So much that the two substances will not mix. The lighter water can be separated by pouring it out while the heavy Mercury will stay in the bottom.
The mass number can vary without changing the identity of an atom whereas change in atomic number may not be possible.
Atomic number of an atom is the number of protons or electrons in an atom. So the atomic number is an essential criteria for the identification of an element. No two elements will have the same atomic number. Thus atomic number cannot be changed for a particular atom. This is because the number of protons cannot be changed.
Mass number is the sum of the number of protons and neutrons of an atom. This can be varied without changing the identity of atom. We call them isotopes. Some elements have more than one kind of atoms with different mass number but same atomic number. For example, Hydrogen has three isotopes. These are formed by the difference in the number of neutrons in an atom.
Learn more about Atomic and Mass number at brainly.com/question/338808
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