Answer:
The correct classification of the statement is all compounds.
Explanation:
- All matter is defined as something that entirely has weight and occupies some sought of space. That's why it can't be used to describe the above statement.
- All elements are defined as substances that have an equal number of protons. The atoms in an element contain an exact atomic number.
- All compounds can be defined as a formation that takes place when a variety of atoms are chemically combined. Hence, this explains the answer above.
- All pure substances mean that the substance is not mixed with anything at all. It's just by itself.
Answer:CAST!!!!!!!!!!!!!!!
Explanation:
Answer:
6.0 x 10^-1 g Fe
Explanation:
I might be in the wrong but hear me out:
Convert 0.85 g to mols of Fe2O3.
0.85 g x 1 mol/159.69=0.0053 mols Fe2O3.
Get moles of Fe (iron metal).
0.0053 mols Fe2O3 x 2 mol Fe/ 1 mol Fe2O3
= 1.0 x 10^-2 mols Fe
Convert moles to grams of Fe.
1.0 x 10^-2 mols of Fe x 55.85 grams Fe/ 1 mol Fe
= 6.0 x 10^-1
There should be only one sig fig. Hoped this helped.