Balanced chemical reaction: C<span>d + NiO</span>₂<span> + 2H</span>₂O<span> → Cd(OH)</span>₂<span> + Ni(OH)</span>₂.
Number of atoms of same element must be same on both side of chemical reaction. In balanced chemical reaction there are 4 atoms of hydrogen, 2 atoms of oxygen, 1 atom of nickel and 1 atom of cadmium on both side.
Sum of coefficients are: 1 + 1 + 2 + 1 + 1 = 6.
Answer:
10.0 g
Explanation:
Avogadro's law states that there are 6.02 × 10²³ molcules in one mole of a substance, so we know that this sample has half a mole of neon.
The atomic mass of neon is 20.1797 g/mol, so 0.5 mol has a mass of about 10.0 g.
Cathode Ray experiment showed that all<span> atoms contain tiny negatively charged subatomic particles or </span>electrons.
<span>Rutherford estimated the diameter of the nucleus, not the volume.
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<span>Dalton thought that atoms were indivisible particles, and Thomson's discovery of the electron proved the existence of subatomic particles.</span>
Answer:
2
Explanation:
Devising a repellent would by far be the most successful scenerio. The synthetic compound N,N-diethyl-meta-toluamide (DEET) is a good example of this repellant.