Hey!! your answer is -----
universal pH indicator is made up by the combination of several types of indicator.
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B) they have no charges and are inside an atom.*
Cryosurgery. You automatically know this because 'cryo' means ice or something cold, thus you can assume that it is that
B. carbon-13 is not an allotrope of Carbon.
Allotropes<span> are elements on the periodic table that have more than one crystalline form. </span>Isotopes<span> are atoms of the same element with the same atomic number but have a different mass number.
C-13 is an isotope of carbon, not an allotrope.</span>
