Answer:
Explanation:
1. The molecular formula for water is H2O. One molecule of water consists of one oxygen atom covalently bonded to two hydrogen atoms
2.The chemical formula of ammonia is NH3, and its molar mass is 17.03 g/mol. The ammonia molecule has a trigonal pyramidal shape, with nitrogen connected to the three hydrogen atoms. The nitrogen atom has a lone electron pair, which makes ammonia a base.
3.The chemical formula of ammonia is NH3, and its molar mass is 17.03 g/mol. The ammonia molecule has a trigonal pyramidal shape, with nitrogen connected to the three hydrogen atoms. The nitrogen atom has a lone electron pair, which makes ammonia a base.
4.the chemical structure of chlorine gas is Cl2 and its molecular weight is 70 g/mol. Its structure is Cl-Cl, which is also called the element form of the chlorine element, consist in 2 atoms of chlorine joined by a covalent bond.
5.Ethane is a colorless, odorless, and flammable gas with a chemical formula of C2H6; it has two carbon (C) atoms and six hydrogen (H) atoms. It's only composed of carbon and hydrogen atoms, so it is classified as a hydrocarbon.
Answer:
1.
meteorology A line drawn on a map or chart connecting places of equal or constant pressure.
2.
nuclear physics Either of two nuclides of different elements having the same mass number.
3.
thermodynamics A set of points or conditions at constant pressure.
It depends on the pH level of the water.
The statement that is true is that B. Atoms always remain intact during chemical reactions.
Atoms simply mean the <u>basic units of matter.</u> They're the defining structure of an element. Atom is also known as the smallest unit of matter.
It should be noted that atoms always remain intact during chemical reactions. They cannot be added and removed when there are <em>chemical reactions.</em>
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D. 8
You can predict it from it's name "Octet" means Eight. Atom must have that number of electron to have a stable structure!
Hope this helps!
