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Question:- Airplanes fly in what layer of the atmosphere? Answer: Troposphere Airplanes mainly operate in the troposphere which is the first layer in the Earth’s atmosphere. Ranging from the Earth’s surface up to approximately 10-12km (6-7 miles) in the middle and lower latitudes, the troposphere is where most weather processes take place. This layer is…

Provide the following information for 𝑁𝐻4+. a. electron geometry b. molecular geometry c. polarity d. central atom hybridization Answer: The correct answers are a, b, c and d. The ammonium ion is another ionic compound with a cation that connects a nitrogen atom to four hydrogen atoms. They are both tetrahedral symmetrical; nitrogen is in…

Question:- How many elements are there on the periodic table? Answer: 118. The modern periodic table has 118 columns, every one of which represents all naturally occurring and many synthetic chemical elements. Gathering all these elements has been the work of many centuries or the progress of science and technology. All the elements up to…

Question:- What is the difference between zoology and botany? Answer: Zoology is a branch of biological science that deals with animals while botany is a branch that covers plants. The two subjects are branches of biology that are generally dedicated to different kingdoms in the classification of living organisms. Zoology is all about seeking to…

Question:- Which element in the periodic table has the largest atomic radius? Answer: Francium Francium, symbol Fr and atomic number 87 is a chemical element in the periodic table that has a very large atomic radius than any other element. This is a characteristic due to its relative position as the largest, heaviest alkali metal…

A purchase of supplies on account should be recorded as: a) a debit to Supplies Expense and a credit to Cash. b) a debit to Accounts Payable and a credit to Supplies. c) a debit to Supplies Expense and a credit to Accounts Payable. d) a debit to Supplies Expense and a credit to Accounts…

A _____ is usually paid on a biweekly or monthly basis for professional employment. a. salary b. stipend c. wage d. benefit Answer: a. salary A salary is the type of remuneration which is connected more with business employment and it is usually given on a biweekly or monthly basis. Then, while wages refer to…

Question:- Is copper a pure substance, a homogeneous mixture, or a heterogeneous mixture? Explain. Answer: Pure substance Copper can be rightly said to be a pure substance; it is a metal. Still, it is a chemical element that has a symbol, Cu, and its atomic number is 29. From the formulation point of view, copper…

Question:- Why is sunlight considered a renewable resource? Ultimately, won’t it run out? Answer: Sunlight is the main example of a renewable resource since people cannot exhaust it as it comes from the sun and is available daily. On the contrary, one can point out that the sun will burn out eventually and will go…

Question: A battery stores what type of energy? Answer: Chemical energy A battery holds chemical energy that is changed into electrical energy when the battery is employed. This process takes place through what is known as the electrochemical processes active in the battery. In the battery, there is an anode and a cathode which are…