Answer:
minerals
Explanation:
defines a mineral as "a naturally occurring inorganic element or compound having an. orderly internal structure and characteristic chemical composition, crystal form, and physical. properties." Minerals differ from rocks, which are naturally occurring solids composed of one or more minerals.
C. Chemical properties always change depending on temperature or pressure
This phenomenon is known as the periodic trends in reactivity. It occurs because of the arrangement of electrons in orbitals.
As one moves from left to right across a period, the number of electrons in the outermost shell increases. These outermost electrons are involved in chemical reactions.
Therefore, as the number of outermost electrons increases, the reactivity of the element increases. However, the elements have filled shells, so beyond a certain point, the outermost shell will be full.
The reactivity then decreases as the electrons are no longer available to take part in chemical reactions. Therefore, the reactivity of the elements decreases from left to right in a period and then increases as the outermost shell begins to fill up again.
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264.7miles per gallon
Explanation:
Given parameters:
Distance traveled = 264km
volume of gasoline = 23.3L
Unknown:
Gas mileage = ?
Solution:
We are to solve for the Gas mileage in miles per gallon. This will show how much gas was used per miles covered.
Convert km to miles
liters to gallon
1mile = 1.609km
1liter = 0.264gallon
In miles; 
= 164.1miles
23.3L = 23.3 x 0.264 = 0.62gallon
miles per gallon = 
= 264.7miles per gallon
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