Answer:
B. Prepare solutions of different acid concentrations, measure 50 milliliters of each into different beakers, and place metal samples of different types but of the same mass into the beakers.
Explanation:
Since Michael is studying the factors that affect corrosion of metals, and wants to test the effect that different concentrations of an acid will have on the corrosion of a metal, using different acid concentrations of the same volume on different metal samples of the same size would give a much better than all the other options because, a standard volume of acid is used and also a standard mass of metal is used. So, the effect can be measured quantitatively since we have the same quantity of sample.
So, option B is the answer
The answer is A, which is often known as the red shift. It is the displacement of spectral lines toward longer wavelengths.
C. they both built pyramids. i hope you like it.
Answer:
An element is more the “subject”; such as sodium, carbon, iron, etc are elements. An element can be a single gold atom or a whole chuck of pure gold (Au). An atom is the single distinguishing component which makes an element. For example a single carbon (name of the element) atom has 6 protons and 6 electrons
Explanation:
Answer:
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have a good day :)
Explanation: