Answer:
319.3g Cu2S
Explanation:
There is 127.1 g Copper in 159.16g (molar mass) of Cu2S. Let x be Cu2S required. Then x * (127.1/159.16) = 255.0g. So x = 319.3g
Answer- 63 grams
You find this out by multiplying 3.5 and 18 which is waters molar mass
Answer:
C
Explanation:
Because beryllium comes before carbon and magnesium before silicon
I’m sorry I’m really not sure how to answer this but have to respond to have this app I hope you have a good day:)