Answer:
D
Explanation:
Its the only answer that actually makes sense and i got it right on the quiz.
The chemical formula : X₃Y₂
<h3>Further explanation </h3>
The noble gas element is a stable class of elements. The noble gas element is monatomic. Stability of noble gases is caused by an electron configuration that has a stable configuration of 8 (has 8 valence electrons) except He with a duplet configuration (has 2 valence electrons)
Other elements that do not yet have electron configurations such as noble gases will try to achieve their stability by forming bonds between elements.
This is generally called the octet rule
X has 2 valence electrons.to achieve stability, element X will release 2 electrons to form X²⁺
Y has 5 valence electrons, to achieve stability, the element Y will attract/ add electrons to form Y³⁻
The two compounds will form a compound with the charges crossed : X₃Y₂
It is being aware of things around you and the decisions you make. Being in control of your own actions.
Answer:
The answer to your question is density = 635.3 g/ml (check the units)
Explanation:
Data
density = ?
volume = 85 ml
mass = 54 kg
Density is a physical property that relates the mass of an object and its volume.
The unit of this property are g/ml or kg/m³
In this problem, I will calculate the density in g/ml
Formula
density = mass/ volume
-Substitution
density = 54000 / 85
-Simplification
density = 635.3 g/ml
Answer:
Option A
Explanation:
Standard molar entropy determines the randomness of a mole of substance. Thus, the larger and complex a molecule is, the larger will be its molar entropy.
The molar entropy of gases is higher than liquids which is turn is higher than solid.
Here , NO2 is a gas with higher complex structure (trigonal planar) than N2 (linerar), N2O (linear) and N2O2 (linear)
Hence, NO2(g) will have greatest standard molar entropy
Option A is correct
