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2023 Basic Chemistry

General Questions

Ok ...the question isReady......
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