Explanation:
The answer is 0.5 moles of gold
0.07cm³
Explanation:
Given parameters:
Density of the body = 350g/cm³
Mass of the body = 25g
Unknown:
Volume of the body = ?
Solution:
Density is the amount of substance contained in a volume of body. It is expressed as:
Density = 
Since the unknown is volume, we make it the subject of the expression;
Volume = 
Volume =
= 0.07cm³
learn more:
Density brainly.com/question/2690299
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Solution : As they have uniform composition throughout they are considered as homogeneous mixture. Both samples are mixture of two metals (gold and palladium) thus are alloys.
The answer is D . I hope this help you :) .