Percentage yield=(actual yield/theoretical yield) x 100%
= (45/50) x 100%
= 90%
Your answer would be a change in odor! Hope this helps! ;D
If you're looking for "what rocks are formed by changes..." it's Igneous Rocks.
Answer:
The correct answer is C. element
Explanation:
The sample cannot be an element because an element - or <em>elemental substance</em> - cannot be decomposed into simpler substances. Thus, it cannot be composed by differents types of atoms. For example, an element is carbon (C).
As the sample contains <u>three types of atoms</u>, it can be a compound, a molecule or a mixture, because they can be composed by different types of atoms - of different chemical elements. For example, the sample could contain the element carbon (C) combined with other elements, for example oxygen (O) or hydrogen (H), amoing others.
Science does not have anything to say about right and wrong the meaning of life or the extensive or the subjective
