Using a calculator:
(2.568 x 5.8)/4.186 = 3.5581460…
= 3.56 (3sf)
You didn’t specify the correct number of significant figures needed.
Answer:
The three parts of the seed are the embryo, endosperm and the seed coat.
Explanation:
The embryo is the young multicellular organism before it emerges from the seed. The endosperm is a source of stored food which consists mostly of starches. The seed coat consists of one or more protective layers that encase the seed.
Hope this helps x
the answer is c, the number of protons plus the number of neutrons in a nucleus
<h3><u>Answer;</u></h3>
B) a system is a group of objects analyzed as one unit
C) energy they moves across system boundaries is conserved
<h3><u>Explanation;</u></h3>
- System is a group of objects analyzed as one unit
.
- An open system is a system that freely exchanges energy and matter with its surroundings.
- A closed system is a system that exchanges only energy with its surroundings, not matter. An isolated system does not exchange energy or matter with its surroundings.
The molecular formula of the compound which has a molecular weight of 112.124 atomic mass units is C₆H₈O₂.
<h3>What is molecular formula?</h3>
Molecular formula of any compound tells about the composition and numbers of each entities present in that molecule.
Steps involved in the prediction of molecular formula:
- First we predict the molar mass of given emperical formula as:
Molar mass of C₃H₄O = 3(12) + 4(1) + 16 = 56
- Now we divide the given mass by the calculated mass of empirical formula:
112.124/56 = 2
- Now we multiply the subscripts of given empirical formula by this whole number and we get:
Molecular formula = (C₃H₄O)₂ = C₆H₈O₂
Hence correct option is (E).
To know more about molecular formula, visit the below link:
brainly.com/question/26388921
