The answer is A because Ag and Cu switch places- a SINGLE change occurred :) hope this helped!!
Answer:
Tides are the rise and fall of sea levels caused by the combined effects of gravitational forces exerted by the Moon and the Sun, plus the rotation of the Earth. Tides are caused by the gravitational pull of the moon and sun. High and Low tides are caused by the moon. Spring tides occur twice each lunar month all year long without regard to the season. Neap tides, which also occur twice a month, happen when the sun and moon are at right angles to each other.
Explanation:
Hope this helped! :D
Answer:
Partial positive on hydrogen and partial negative charge on oxygen atom
Explanation:
Answer : The energy of the photon emitted is, -12.1 eV
Explanation :
First we have to calculate the orbit of hydrogen atom.
Formula used :
where,
= energy of orbit
n = number of orbit
Z = atomic number of hydrogen atom = 1
Energy of n = 1 in an hydrogen atom:
Energy of n = 2 in an hydrogen atom:
Energy change transition from n = 1 to n = 3 occurs.
Let energy change be E.
The negative sign indicates that energy of the photon emitted.
Thus, the energy of the photon emitted is, -12.1 eV
Mass/ energy can not be created or destroyed