"许多女孩举起了手,老师选了其中一位.女孩说"I is…",老师说"不对,你必须说 I am"女生说道"好的,I am the ninth letter of the alphabet(I(我)是字母表的第九个字母.)" 结果三 题目 School stories:(1)H2O:One day the science teacher asked the class,"What's the chemical formula for water?
(1)H2O:One day the science teacher asked the class,“What's the chemical formula for water?“A boy put up his hand, and the teacher said,”“Yes?”the boy said“HIJKLMNO”.“Are you trying to be funny?”asked the teacher angrily.“No, sir.”said the boy.“You said the formula ...
解答 71.B 细节理解题.根据小男孩的回答:"You said the formula was H to O."可知H2O应该是听上去和H to O一样,在这里是指发音一样.故选B.72.C 常识判断题.根据One day the science teacher asked the class,"What's the chemical formula for water?"并联系化学常识可知H2O就是水的化学分子式,所以...
Write the formula for the phosphate compound formed with the barium ion. What is the formula for the ionic compound formed from the hydrogen phosphate anion (HPO42-) and the cation Al3+? What is the formula for lead (IV) hydrogen phosphate? What is the formula for the ...
Answer to: What is the formula for calculating the number of moles? By signing up, you'll get thousands of step-by-step solutions to your homework...
What is the chemical formula for sea water?What is the chemical formula for sea water?CH2OExplanation Said out loud, "CH2O" sounds like "sea H2O" which is the same as "sea water".All Jokes Next JokeCopyright © 2008-2024 About Us · Privacy · Terms 🌎 English ...
Classify the compound iron(II) nitrite as ionic or covalent. What is the formula for this compound? If the formula of an oxide of element X is XO, what is the formula of the nitride of X? How do you tell if a compound is ionic or covalent by its formula?
What is the formula of a calcium ion? Calcium: Calcium is an essential nutrient in maintaining the skeletal system of the body. It helps in the formation of teeth and also helps nerves to carry messages. Answer and Explanation: Learn more about this topic: ...
So the farther apart the particles are, and/or the less massive the particles, the less the gravitational force. The standard formula for the law of gravitation goes [source: UT]: Gravitational force = (G x m1 x m2) / (d2) where G is the gravitational constant, m1 and m2 are the ...
The structural formula of a chemical compound is a visual representation that shows how the atoms in that compound are bonded together. It is often more useful than the molecular formula, which indicates the atoms and their quantities but not their arrangement in space. For example, the molecular...