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2023 Basic Chemistry
General Questions
| Ok ...the question is | Ready...... |
|---|---|
| IN non polar bonds are electrons are shared unequally --or---electrons are shared equally | electrons are shared equally |
| In polar bonds --are the electrons shared unequally orelectrons are shared equally | electrons are shared unequally |
| which statement is true -- a ion ---is a substance that cannot be broken down to other substances by chemical reaction -or----the # of protons and # of electrons are unequal | the # of protons and # of electrons are unequal |
| What is astrong chemical bond in which 2 atoms share one pair of valence bonds --a ionic bond--or a chemical bond or a covalent bond or a photon bond or a james bond? | covalent bond |
| Copper--symbol for is | Cu |
| homogenous mixture is either -substances that cna be easily separated physically -or-substances that cannot be separated physically | substances that cannot be separated physically |
| matter is | mass that occupies space |
| element is | substance that cannot be broken down into other substances by chemical methods |
| how does temperature affect motion of molecules? | as temp increases, so does motion |
| What is energy ? | the capacity to do work |
| True or false?-- heterogenous mixture substances that cna be easily separated physically | True |
| True or False-calorie amount of energy (heat) required to raise the temp. of one gram of water by one degree celcius | True |
| True or False-Mass= gram units | True |
| True or False -physical properties areability to form new substances after changes ex. wood burning giving off heat and gases and leaving behind residues of ashes, rustin | False-color, odro, volume, melting point, boiling point, density |
Created by:
Mr. L
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