Answer:
1 oxygen
Explanation:
cause H2O= two hydrogen + one oxyge
Answer is: <span> two samples have in common same amount of substance and same number of particles.
1) There are same amount of substance in both beakers:
n(Zn) = 1 mol.
n(ZnCl</span>₂) = 1 mol.
2) There are same number of particles (atoms, molecules, ions) in both beakers:
N(Zn) = n(Zn) · Na.
N(Zn) = 1 mol · 6.023·10²³ 1/mol = 6.023·10²³ atoms of zinc.
N(ZnCl₂) = n(ZnCl₂) · Na.
N(ZnCl₂) = 1 mol · 6.023·10²³ 1/mol = 6.023·10²³ molecules of zinc(II) chloride.
Na - Avogadro number.
The cells in it are very similar, very few differences
Answer:
Animal cells are more round and do not have a rigid cell wall.
Explanation:
<span>In short, Thompson's cathode ray experiment led to the identification of electrons in an atom. The experiment showed that all atoms have subatomic particles with a negative charge. This allowed Thompson to develop the rough model of the atom that we are familiar with today.</span>