How many possible molecules are there? According to the Chemical Abstracts Service, CAS REGISTRY (SM) contains more than 90 million unique organic and inorganic chemical substances, such as alloys, coordination compounds, minerals, mixtures, polymers and salts, and more than 65 million sequences—more than any other database of its kind. What is the 2nd most common […]
What is a different source of water?
What is a different source of water? 3.1 Types of water source. In Study Session 1 you were introduced to the three main sources of water: groundwater, surface water and rainwater. In arid regions where seawater is accessible (such as in the Middle East), desalination (the removal of salts from water) is used to generate […]
What is the biggest disaster in history?
What is the biggest disaster in history? Ten deadliest natural disasters by highest estimated death toll excluding epidemics and famines Rank Death toll (Highest estimate) Event 1. 4,000,000 1931 China floods 2. 2,000,000 1887 Yellow River flood 3. 830,000 1556 Shaanxi earthquake 4. 655,000 1976 Tangshan earthquake How do we reduce disaster risk? Reducing exposure […]
What is the prefix nano used to describe quizlet?
What is the prefix nano used to describe quizlet? a prefix meaning one billionth, creating and manipulating materials at the nanoscale. What is the prefix nano used to describe? The term “nano” comes from ancient Greek and means “dwarf” (nános = dwarf). Used as a prefix, “nano” denotes 10-9, just as “kilo” denotes 103 and […]
What is a normal Haemoglobin level?
What is a normal Haemoglobin level? The normal range for hemoglobin is: For men, 13.5 to 17.5 grams per deciliter. For women, 12.0 to 15.5 grams per deciliter. What are the factors which enable the binding of oxygen to Haemoglobin? Several factors influence the binding of oxygen to hemoglobin: temperature, pH, PCO2 and 2,3 diphosphoglycerate […]
How can you determine if the liquid is water?
Why did Germany worry about the alliance between France and Russia?
Why did Germany worry about the alliance between France and Russia? 1 Answer. Probably because Germany was and still is located in between the two nations and, in case of war, would have been forced to fight on two fronts simultaneously (a not very strategical advantageous situation indeed!). Is France allied with Russia? Dual Alliance, […]
What results when a wave reflects off a fixed boundary?
Which is the SI unit?
Which is the SI unit? There are seven basic units in the SI system: the meter (m), the kilogram (kg), the second (s), the kelvin (K), the ampere (A), the mole (mol), and the candela (cd). What is dimension formula? Dimensional formula (equation) (Definition) : An equation, which gives the relation between fundamental units and […]