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2023 Basic Chemistry
Lesson 21 Molecular Shapes
Chem-C. 21 Molecular Shapes | and the answer is |
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How many covalent bonds make up a bond angle. Is it 1....2....or.....4...? | 2 |
True or False : A bond angle is formed between the covalent bonds linking three atoms? | True |
Select the word that makes the following sentence correct.--Electron pairs in a molecule are as (close to) or (far apart) from each other as possible. | far apart from |
The presence fo an unshared electron pair in a molecule causes the bond angles to be slighty (LARGER) OR (SMALLER) than they otherwise would be. | Smaller |
A three atom molecule with a bent shape is (CO2) or (H20) | H20 |
WHAT IS A BOND ANGLE? | A ANGLE BETWEEN TWO COVALENT BONDS |
What is the bond angle between the atoms in a molecule of oxygen gas? ( 02)..Explain your answer.. | There is none because two-atom molecules are linear. |
What is the shape of a molecule made of two atoms? | straight line (linear) |
Explain why the shape of a molecule depends on the electron pairs around the central atom. | Electron pairs repel other electron pairs strongly and unshared electron pairs repel shared pairs even more strongly. |
What is the chemical formula that tells the kinds and realtive numbers of atoms of each kind in an ionic compound | formula of an ionic compound |
A group of atoms of different elements that act together to form an ion are called..... a covalent bond......a ionic bond.....a ottaihcolrm....or a radical | radical |
What is a ottahcolrm ? | Mr. Lochiatto ...spelled backwards |