Answer:
New substances are produced by a chemical change
It is a scientific hypothesis. A scientific hypothesis must be testable, however there is a significantly more grounded necessity that a testable speculation must meet before it can truly be viewed as logical. This foundation comes essentially from crafted by the rationalist of science Karl Popper, and is called "falsifiability".
The state in which all of the external forces acting upon an object are balanced; there is no acceleration. friction ..... quadrupling. doubling distance and quadrupling mass has the overall effect of the force
Answer:
b.
Explanation:
Cation and anion.
For example Na+ and Cl- -----> NaCl.
C, to make sure the design works as expected.
A prototype is first, typical model of the said product. Hope this helps!