A) ambos pertencem ao 5o período da Tabela Periódica; b) X é um metal de transição interna;
c) Y é um metal de transição externa;
d) ambos possuem, respectivamente, números atômicos iguais a 38 e 40;
e) X pertence à família 2 e Y, à família 4 da Tabela Periódica.

Find the empirical formula of each of the following compounds. given mass or for each element in a sample of the compound 3,611 g ca; 6.389 g c1

State the formula for density in words and mathematical symbols

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant