Answer:
Uranium.
Explanation:
it has 92 protons. Hope it helps!
Answer:
0.40 M HCN and 0.10 KCN
Explanation:
A buffer solution is defined as the aqueous mixture of a weak base and its conjugate base or vice versa.
For the systems:
0.10 M KCN 0.20 M CH3COOH: Acetic acid, CH₃COOH is a weak acid and KCN is the conjugate base of HCN. Here, you have a weak acid and a conjugate base but not the conjugate base of the acetic acid or the weak acid of KCN. Thus, <em>it is not a buffer.</em>
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1.0 M HNO3 and 1.0 M NaNO3. HNO₃ is a strong acid. Thus, this system <em>is not a buffer.</em>
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0.40 M HCN and 0.10 KCN. Here, you have HCN, the weak acid, and KCN, its conjugate base. Thus, <em>it is a buffer.</em>
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0.50 M HCl and 0.10 NaCl. HCl is a strong acid, thus, its mixture with NaCl <em>is not a buffer.</em>
Both sides need to be balanced?
Answer:
D
Explanation:
The correct answer would be that <u>the thermal energy of the sun is transferred to the pavement.</u>
Thermal energy refers to the internal energy possessed by a system by virtue of the movement of molecules within such a system. In other words, it is the heat energy possessed by a system.
When the thermal energy from the sun warms the pavement, it means that the thermal energy from the sun has been successfully transferred to the pavement. Thermal energy can be transferred by conduction, convection, or by radiation depending on whether the system is a solid, liquid, gas respectively.
<em>The correct option is, therefore, D. </em>
C. Protons, neutrons, electrons