Answer:D molecular attraction increases as temp decreases
Explanation:A,B would require data not available. C is missing. The question is a mess.
Answer:
Number of neutrons in the nucleus.
Explanation:
Mass number is protons plus neutrons. Protons do not change from isotope to isotope
Answer:
Sample C is most likely the metal.
Explanation:
The Sample C is the metal, because the properties given in the sample c are all of the metal. As we know that the metals are the lustrous or the shiny elements. They are often good conductor of heat and also electricity. The metals possess high melting point. The density of the metals are heavy for their size. Metals can be easily hammered, and hence are malleable. They can easily be stretched into wires hence are ductile. They remains solid at room temperature but in case of mercury it remains as liquid. Metals are opaque object and cannot be see through it.
Answer:
The ratio of proton acceptor to proton donor is 1000
Explanation:
In a weak acid, the proton donor is HA and proton acceptor is A⁻. Using Henderson-Hasselbalch formula:
pH = pka + log₁₀ [A⁻] / [HA]
7,0 = 4,0 + log₁₀ [A⁻] / [HA]
3,0 = log₁₀ [A⁻] / [HA]
10³ = [A⁻] / [HA]
1000 = [A⁻] / [HA]
That means <em>the ratio of proton acceptor to proton donor is 1000</em>
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I hope it helps!
Answer:
My celebrity crush is young Keanu Reeves and my favorite drink is matcha tea
Explanation: