Answer:
A. Biodiversity can increase the rate of extinction
Explanation:
That statement is false because variety is better for a better ecosystem. With variety more can survive in certain situations that others cant.
The answer is emission spectrum. It is the range
of frequencies of electromagnetic radiation produced because
of an atom or
molecule generating a transition from a high energy state
to a lower energy state. The photon
energy of the produced photon is equivalent
to the energy change between the two states. There are many conceivable
electron changes for each atom, and each change has a precise energy
difference.
Answer:
The assumptions of the Bohr model of the atom are:
- Atoms have a central nucleus with electrons in orbit about this nucleus.
- They must gain energy to jump to a higher level, and they release energy when jumping to a lower level.
- Electrons orbit the nucleus, but the orbits can have only certain sizes and energy values.
Explanation:
The Bohr model of the atom establishes that atoms have a central nucleus with positive charge and electrons (with a negative charge) in orbit about this nucleus. In the Bohr model, electrons move in specific orbits with a certain amount of energy and can't jump from one orbit to another around the nucleus. To jump to a higher level, they must gain energy or release energy when jumping to a lower level.
The Thomson model of the atom postulated that <em>atoms are solid spheres of matter</em> and <em>are made of positive material with electrons fixed in place in this positive material</em>.
The percent by volume of ethanol in the solution 30% ((150/500)*100%) based on the Law of Conservation of Mass. The object's mass before a reaction and after a reaction is equal according to the Law of Conservation of Mass. The dissolved ethanol become the part of the solution but it does not decrease its volume.
Answer: can i see the whole paper
Explanation:
