How do I calculate an angle? The formula for finding the total measure of all interior angles in a polygon is: (n – 2) x 180. In this case, n is the number of sides the polygon has. Some common polygon total angle measures are as follows: The angles in a triangle (a 3-sided polygon) […]
How dirty is groundwater?
How dirty is groundwater? Unfortunately, groundwater is susceptible to pollutants. Groundwater contamination occurs when man-made products such as gasoline, oil, road salts and chemicals get into the groundwater and cause it to become unsafe and unfit for human use. Is ground water good for drinking in India? Ground Water Quality Scenario in India In general, […]
Is atomic number equal to number of protons?
Is atomic number equal to number of protons? Neutral atoms of an element contain an equal number of protons and electrons. The number of protons determines an element’s atomic number (Z) and distinguishes one element from another. For example, carbon’s atomic number (Z) is 6 because it has 6 protons. Can we turn CO2 into […]
What are double replacement reactions used for?
What are double replacement reactions used for? A double-replacement reaction exchanges the cations (or the anions) of two ionic compounds. A precipitation reaction is a double-replacement reaction in which one product is a solid precipitate. Solubility rules are used to predict whether some double-replacement reactions will occur. How do you know if a reaction is […]
Why do objects roll?
Why do objects roll? When you drop the object, this potential energy is converted into kinetic energy, or the energy of motion. Kinetic energy depends on an object’s mass and its speed. For a rolling object, kinetic energy is split into two types: translational (motion in a straight line) and rotational (spinning). What does slide […]
What is the fastest Falcon bird?
Are heart muscle cells striated?
Are heart muscle cells striated? Cardiac muscle is striated muscle that is present only in the heart. Cardiac muscle fibers have a single nucleus, are branched, and joined to one another by intercalated discs that contain gap junctions for depolarization between cells and desmosomes to hold the fibers together when the heart contracts. Why is […]
Is 2Na Cl2 2NaCl a balanced equation?
Is 2Na Cl2 2NaCl a balanced equation? The equation 2Na+Cl->2NaCl is balanced therefore, it is an example of the law of conservation of mass. What does 2 mean in 2NaCl? [High School Science] What is 2NaCl(aq)? Na is the chemical symbol for sodium, and Cl is the chemical symbol for chlorine. So NaCl is sodium […]
What are the 6 essential elements of life?
What are the 6 essential elements of life? The six most common elements of life on Earth (including more than 97% of the mass of a human body) are carbon, hydrogen, nitrogen, oxygen, sulphur and phosphorus. What’s the most useless element? Occurrence. Protactinium is one of the rarest and most expensive naturally occurring elements. What […]
Is cuneiform hard to read?
Is cuneiform hard to read? Cuneiform texts look complex and seem hard to read, and, frankly, they are complex and are hard to read. Yet, there are degrees of complexity and even a layman can make sense of a cuneiform text. For example, the Persian script is alphabetic and often used in clearly legible rock […]