Answer:
168 g
Reaction:
Explanation:
First we need to figure out what is the formula mass (Mr) of Fe2O3 (Iron(III) oxide).
The atomic mass of Fe=56, O=16
Mr= 56+56+16+16+16=160 g/mol
We can now figure out the moles of the iron:
240/160 = 1.5 mol
Then we need to find the ratio to make Fe.
In the reaction, we know that 1 mole of Fe2O3 can make 2 moles of Fe. So 1.5 moles of Fe2O3 can make 3 moles of Fe.
And then we need to find the mass of the Fe.
3×56=168 g.
Hence 168g of the iron is made after the reaction.
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solution
solution is a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent).
Answer:
Carbon (C)
Explanation:
Organic chemistry is generally defined as the chemistry of carbon compounds. In order words, organic compounds are those compounds that contain carbon.
However, one characteristic of organic compounds is that in organic compounds, carbon links to itself to form long chains. This property is known as catenation. When we look at the compound. There are six carbon to carbon linkages. This is typical of organic compounds. Hence the substance is an organic compound.
Answer:
In case of low-mass stars,the outer layers of the low mass stars are expelled as the core collapses such that the outer layers form a planetary nebula.
Explanation:
In case of low-mass stars,the outer layers of the low mass stars are expelled as the core collapses such that the outer layers form a planetary nebula. The core remains as a white dwarf and finally become a black dwarf as it cools down. A low mass star consumes its core hydrogen and turns it into helium over its lifetime.
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