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Question
list the metric prefixes in order from least to greatest. the acronym or just letters for each will not be accepted.
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list the seven types of physical properties.
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list the three common types of evidence for a chemical change.
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Part 1: Metric Prefixes (Least to Greatest)
Metric prefixes represent powers of 10. The order from least (smallest power) to greatest (largest power) for common prefixes (considering base - 10 factors) is: yocto ($10^{-24}$), zepto ($10^{-21}$), atto ($10^{-18}$), femto ($10^{-15}$), pico ($10^{-12}$), nano ($10^{-9}$), micro ($10^{-6}$), milli ($10^{-3}$), centi ($10^{-2}$), deci ($10^{-1}$), deca ($10^{1}$), hecto ($10^{2}$), kilo ($10^{3}$), mega ($10^{6}$), giga ($10^{9}$), tera ($10^{12}$), peta ($10^{15}$), exa ($10^{18}$), zetta ($10^{21}$), yotta ($10^{24}$). But if we consider the more commonly taught prefixes in basic science (from very small to large in a typical curriculum context), a common order is: micro, milli, centi, deci, deca, hecto, kilo (but this is a simplified set for basic understanding, the full scientific order includes smaller and larger prefixes). However, for a basic list (7 common ones in order from least to greatest magnitude - considering the factor they represent):
- Micro ($10^{-6}$)
- Milli ($10^{-3}$)
- Centi ($10^{-2}$)
- Deci ($10^{-1}$)
- Deca ($10^{1}$)
- Hecto ($10^{2}$)
- Kilo ($10^{3}$)
Part 2: Seven Types of Physical Properties
Physical properties are characteristics of a substance that can be observed or measured without changing the substance's chemical identity. The seven common types are:
- Color (visual appearance)
- Odor (smell)
- Density (mass per unit volume, $
ho=\frac{m}{V}$)
- Melting Point (temperature at which a solid turns to liquid)
- Boiling Point (temperature at which a liquid turns to gas)
- Solubility (ability to dissolve in a solvent)
- Conductivity (ability to conduct heat or electricity)
Part 3: Three Common Types of Evidence for a Chemical Change
A chemical change involves a change in the chemical composition of a substance. Three common types of evidence are:
- Formation of a Precipitate (a solid forms from a solution)
- Evolution of a Gas (bubbles or fizzing, indicating a gas is produced)
- Change in Color (unexpected color change, not due to mixing or dilution)
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Metric Prefixes (Least to Greatest - 7 common ones)
- Micro
- Milli
- Centi
- Deci
- Deca
- Hecto
- Kilo
Seven Types of Physical Properties
- Color
- Odor
- Density
- Melting Point
- Boiling Point
- Solubility
- Conductivity
Three Common Types of Evidence for a Chemical Change
- Formation of a Precipitate
- Evolution of a Gas
- Change in Color