Which of the following is not the same as 8,540 centigrams? 0.0854 kg 85.4 g 8.54 hg 85,400 mg

8.54 hg

Explanation:

Mass is the amount of matter contained in a substance.

It can be measured in units of kilograms (kg), grams (g), milli grams (mg) etc;

These units are interconvertible.

1. 0.00854 kg

Thus

2. 85.4 g

Thus

3. 8.54 hg

Thus

4. 85400 mg

Thus

Thus 8.54 hg is not same as 8540 centigrams.

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.