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Unit 2 Knowledge
Facts
Question | Answer |
---|---|
The smallest identifiable unit of an element is an... | Atom |
The smallest identifiable unit of an a compound is a... | Molecule |
Identify the number and type of atoms present in baking soda, NaHCO3 | Na=1 H=1 C=1 O=3 |
The smallest identifiable unit of an element is an... | Atom |
The smallest identifiable unit of an a compound is a... | Molecule |
Identify the number and type of atoms present in baking soda, NaHCO3 | Na=1 H=1 C=1 O=3 |
Specific heat unit= | J/gc |
Anything that has mass or takes up space is... | Matter |
Specific heat is... | The amount if heat required to raise the temp of 1 gram of the substance by 1c |
This cannot be broken down into a more simple substance... | Atom |
Density = | mass/volume |
Specific heat unit= | J/gc |
Specific heat is... | The amount if heat required to raise the temp of 1 gram of the substance by 1c |
c = J/(g)(c) | Specific heat formula |
c = J/(g)(c) Each letter means... | c= the specific heat j= joules of energy g= grams c= temp |
"Potential" to undergo some chemical change or reaction by virtue of its composition observed when undergoes a composition change. | Chemical property |
Some examples of chemical properties are... | Heat of combustion. reactivity with water, pH, flammability, toxicity. |
A measurement must have what attached to a number? | Unit |
When writing a measurement always... | Estimate one unit beyond the scale. |
When doing unit conversions always use... | Dimensional anaylsis |
Heat capacity is... | The ability of a material to retain heat. |