All the elements in one group have the same number of valence electrons.
Al2(SO4)3 + 3Ca(OH)2 -> 2Al(OH)3 + 3Ca(SO)4
Answer:
Your answer here is B. Add water and the wooden beads will float.
Explanation:
Please mark me as Brainliest! :)
D. radioactive isotopes are one of the environmental waste products of nuclear energy.
Answer:
Identify the "given" information and what the problem is asking you to "find."
Given : Cl2O7
Find: % Composition (% Cl and %O)
List other known quantities.
Mass of Cl in 1 mol Cl2O7 , 2 Cl : 2 x 35.45 g = 70.90 g
Mass of O in 1 mol Cl2O7 , 7 O: 7 x 16.00 g = 112.00 g
Molar mass of Cl2O7 = 182.90 g/mol