Condensation releases water
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Answer:aluminum
Explanation:aluminum is a precious metal which means that it can be changed into a liquid solid or gas
Wavelength decreases as frequency increases.
Imagine a heart rate graph. As the heart beats faster, frequency increases and the time between heartbeats decreases (wavelength).
<span>Make sense that way?</span>
Answer:
a. wt% A / Atomic Mass A / (wt% A / Atomic Mass A + wt% B / Atomic Mass B).
b. 11.74%
Explanation:
a. Weight percent is the mass of an element in 100g of the alloy. Atomic percent could be taken as the ratio between moles of an element and the total moles of the alloy.
Assuming a basis of 100g, the moles of A and B (The two elements in the alloy), are:
<em>Moles A:</em>
wt% A / Atomic Mass A
<em>Moles B:</em>
wt% B / Atomic Mass B
<em />
And atomic percent of A is:
<h3>wt% A / Atomic Mass A / (wt% A / Atomic Mass A + wt% B / Atomic Mass B)</h3><h3 />
b. Atomic fraction of Cu in the alloy is (Molar mass Cu: 63.55g/mol; Molar mass Ag: 107.87g/mol):
7.25wt% / 63.55g/mol / (7.25wt% / 63.55g/mol + 92.5wt% / 107.87g/mol)
Atomic fraction Cu = 0.1174 = 11.74%