Monatomic is one atom.
Diatomic is two atoms.
d. diatomic
Answer:
Earth rotates from west to east
Explanation:
hope it helps
Because it goes from a somewhat solid state to a liquid state.
Answer: The isotope is represented as 
Explanation:
General representation of an element is given as:
where,
Z represents Atomic number
A represents Mass number
X represents the symbol of an element
Atomic number is defined as the number of protons or number of electrons that are present in an atom.
Atomic number = Number of electrons = Number of protons = 7 (for nitrogen)
Mass number is defined as the sum of number of protons and neutrons that are present in an atom.
Mass number = Number of protons + Number of neutrons = 7+8 = 15
Thus the isotope is represented as
Answer:
<em>The valid conclusion is:</em>
- <u><em>D. the temperature of the object is increasing, while the temperature of the water is decreasing</em></u>
<u><em></em></u>
Explanation:
The answer choices are:
- <em>A. the temperature of the object is decreasing, while the temperature of the water is increasing</em>
- <em>B. the temperature of the object is decreasing, while the temperature of the water is decreasing</em>
- <em>C. the temperature of the object is increasing, while the temperature of the water is increasing</em>
- <em>D. the temperature of the object is increasing, while the temperature of the water is decreasing</em>
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<h2>Solution</h2>
<em />
Thermal or heat energy always flows from the hotter substances to the cooler substances.
Thus, since the arrows show that the thermal energy is flowing from the water to the object, the water is losing thermal energy and the object is gaining thermal energy.
When an object gains thermal energy, and there is not involved a change of phase, the temperature of the object increases. Thus, the temperature of the object is increasing.
On the other hand, since water is losing thermal energy, and there is not involved a change of phase, the temperature of the water decreases.
Therefore, the correct conclusion is described by the option A:
- <em>A. the temperature of the object is decreasing, while the temperature of the water is increasing</em>
