We can tell when a chemical reaction occurs by looking
at the result. If the matter changes identity rather
than just form, then a (4)__ has occurred. When
this happens (5) are broken and formed. If a
substance's size, shape, or form changes then a
(6) has occurred. This happens when a change
in (7).
has happened, and the substance changes
between solid, liquid, and/or gas. This all falls under
the study of matter and how substances interact with
each other, or (8)
Answers: 1
Physics, 22.06.2019 15:30, tiffuuu
At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
Answers: 1
We can tell when a chemical reaction occurs by looking
at the result. If the matter changes identit...
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