Respuesta :

dunn2003

Answer:

10g of Sulfur reacted with 20g of Cu

Step-by-step explanation:

10g of Cu = 5g of Sulfur

20g of Cu = x Sulfur

You can cross multiply or just flip the grams on the left to

20g ÷ 10g × 5

=20/10 = 2

2× 5 = 10g