Refer to picture attached for solution
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The nuclear emanations 1, 2 and 3 are called, respectively:
1) Alpha, beta and gamma
Alpha Radiation consists of two protons and two neutrons, as protons are positive particles, they will be attracted to the negatively charged plate.
Beta Radiation is composed of a high-energy electron. As electrons are negative particles, they will be attracted to the positively charged plate.
Gamma Radiation is composed or photons. Photons don't have charge or mass, and they will not be attracted to the charged plates. This kind of radiation is more penetrating than the other two.
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The mass percent of oxygen in Nickel(
)sulfate is 
percent.
At first, we look up the atomic masses for the element from the periodic table.
The atomic masses are found to be:
Next, we determine how many grams of each element are present in one mole of 
The mass of one mole is:
So, The mass percent of oxygen 
percent.
To learn more about Mass percent, refer to:
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation.
Answer:
congratulations you have made cocaine
of Ni
of S
of O