Is pyridine an aromatic compound?
The 4 conditions a molecule must fulfil in order to be aromatic. It must be cyclic every atom around the... View Article
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Is KOH an acid or base?
Arrhenius’ definition is that states a base is any compound that donates an OH- ion to solution. Brønsted Lowry definition... View Article
Is ICl2- nonpolar or polar?
Polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole or... View Article
In the skin, what is the function of the papillary layer?
The skin is made of multiple layers of cells and tissues, which are held to underlying structures by connective tissue.... View Article
In the reaction between HCl and Na2CO3, what gas is formed?
Both the hydrochloric acid and sodium carbonate will dissociate completely in solution. The hydrogen ions will bond with an oxygen... View Article
In group 17 how many valences electrons does Iodine have? How many valence electrons does Chlorine have?
Group 17 is of halogens (non-metals). Iodine has 7 electrons in the outer shell and Chlorine has 7 electrons in... View Article
If the speed of light is 3×10^8, determine the distance it takes in 1 light year. Report your results in km and in m.
The distance sun-earth is d=93⋅106 miles d=149.6⋅106 km=149.6 x 109 m The speed of light is c=3⋅108ms−1 The time is... View Article
How to complete this reaction? HNO3 + H2O?
Nitric acid with water reacts as follows:HNO3 + H2O ⇌ H3O+ + NO3− Nitric acid is a relatively strong acid,... View Article
How To Calculate The Dissociation Constant
The dissociation constant is the ratio of dissociated ions (products) to original acid (reactants). It is abbreviated as Ka. HA... View Article
How many valence electrons does sodium have?
Sodium, with a total of 11 electrons, has only one electron in its third and outermost shell. Valence electrons occupy... View Article
How many valence electrons does helium vave?
Answer: Helium is an element with the atomic number 2 that can be found on the upper right side of... View Article
How many resonance structures can be drawn for N2O?
The N2O molecule has a total number of 18 valence electrons – 6 from nitrogen and 6 from each oxygen... View Article
How many protons neutrons and electrons are in a neutral atom of sodium
Answer: Sodium has a strong metallic lustre and in colour is very analogous to silver. Sodium is a member of the... View Article
How many parts is the human brain divided into? Is one of the parts, the hind brain?
The human brain is divided into three parts: the brainstem, the cerebellum, and the cerebrum. The hindbrain comprises the brainstem... View Article
How many legs does a snake have?
Pythons and boa constrictors have tiny hind leg bones buried in muscles toward their tail ends. Snakes usually don’t have... View Article
How many hybrid orbitals are there in HNO3?
The Lewis structure of HNO₃ shows that it is a hybrid of two structures. The N atom has steric number... View Article
How long does it take the earth to complete one revolution around the sun?
The Earth revolves around the Sun, and it does so at a rate we measure to be 365 days (roughly... View Article
How is the structure of a villi in the small intestine related to its function?
The structure of the small intestine is designed for absorption of nutrients. The inside of the small intestine is lined... View Article
How does torque differ from force?
Torque is a type of force that is applied to an object which results in the object rotating around an... View Article
How does quantum mechanics differ from classical mechanics?
Classical mechanics describes the motion of macroscopic objects such as spacecraft, planets, stars, and galaxies. The classical theories are simple,... View Article
