The answer is that exact locations within either cannot be determined at any given moment in time.
An electron cloud be compared with a spinning airplane propeller in the manner that in both exact location within either cannot be determined at any given moment in time.
In both electron cloud as well as spinning airplane propeller, there is a probability of finding either but exact location can not be determined.
Answer: A convex lens is used to converge ligtht.
Explanation:
A concave lens is a lens that is thicker on the ends than in the middle. As consequence of this, a concave lens diverges (separate) the rays of light. A concave lens is also called diverging lens.
A convex lens is is thicker in the middle than on the ends. As consequence of this, a convex lense converge the parallel rays that pass through it. A convex lens is also called converging lens.
<span> A pure substance is a sample of </span>matter<span> with both definite and constant composition with distinct </span>chemical properties<span>. To avoid confusion, in chemistry a pure substance is often referred to as a "chemical substance".</span>
Answer:
Theory of Plate Tectonics
Explanation:
Scientists especially Geologists study and record seismic data and volcanic activities in order to support the theory of plate tectonics.
The theory of plate tectonics suggests that the earth is broken into slabs called the lithosphere that moves over the fluid asthenosphere below.
- The use of seismic data presents scientists with a way of vertically looking deep into the earth.
- Volcanic activities also presents us with the kind of materials down within the earth.
- Also, coupled with this data, scientists use GPS sensors to monitor the rate of movement of the earth.
- When studying plate tectonics, it invariably culminates in the study of sea floor spreading and theory of continental drift.
Given are:
1) CuSO4 + BaCl2 ---> BaSO4 + CuCl2
2) <span>Pb(NO3)2 + 2NaCl ---> PbCl2 + 2NaNO3
3) </span><span>N2 + 3H2---> 2NH3
4)</span><span>K2SO4 + BaCl2---> BaSO4 + 2KCl
Among the 4 reactions above, the only oxidation - reduction reaction is number 3:
N2 + 3H2 ----> 2NH3
since the oxidation numbers of N and H decreased and increased, respectively making the reaction RedOx. </span>