The skin is made of multiple layers of cells and tissues, which are held to underlying structures by connective tissue. The skin is composed of... View Article
Both the hydrochloric acid and sodium carbonate will dissociate completely in solution. The hydrogen ions will bond with an oxygen of the... View Article
Group 17 is of halogens (non-metals). Iodine has 7 electrons in the outer shell and Chlorine has 7 electrons in its outermost shell so will gain... View Article
Nitric acid with water reacts as follows:HNO3 + H2O ⇌ H3O+ + NO3− Nitric acid is a relatively strong acid, meaning it tends to ionize... View Article
The dissociation constant is the ratio of dissociated ions (products) to original acid (reactants). It is abbreviated as Ka. HA + H2O ⇌ H3O+ +... View Article
Sodium, with a total of 11 electrons, has only one electron in its third and outermost shell. Valence electrons occupy in the outermost shell of... View Article
The N2O molecule has a total number of 18 valence electrons - 6 from nitrogen and 6 from each oxygen atom. Since oxygen is more electronegative... View Article
Answer: Sodium has a strong metallic lustre and in colour is very analogous to silver. Sodium is a member of the alkali metal family with... View Article
The human brain is divided into three parts: the brainstem, the cerebellum, and the cerebrum. The hindbrain comprises the brainstem and the... View Article
Pythons and boa constrictors have tiny hind leg bones buried in muscles toward their tail ends. Snakes usually don't have legs. There are no... View Article
The Lewis structure of HNO₃ shows that it is a hybrid of two structures. The N atom has steric number SN = 3. The electron geometry of HNO3 is... View Article
The Earth revolves around the Sun, and it does so at a rate we measure to be 365 days (roughly 24 hour periods), or one year. A Sidereal year is... View Article
The structure of the small intestine is designed for absorption of nutrients. The inside of the small intestine is lined with villi that absorb... View Article
Torque is a type of force that is applied to an object which results in the object rotating around an axis. Force is an action that causes a... View Article
Classical mechanics describes the motion of macroscopic objects such as spacecraft, planets, stars, and galaxies. The classical theories are... View Article
The valence electrons (VE) are the electrons in the outer shell of an atom. These are involved in forming bonds to adjacent atoms. For neutral... View Article
The chemical formula of heavy water is D2O. Heavy water looks like water, but is about 10 percent heavier. In heavy water there is deuterium... View Article
