2Ag2S + 2H2O—>4Ag+2H2S+O2
The reactants are silver sulphide (Ag2s) and water (H2O)
True! You can use the percentage to determine the amount of moles of each substance in the compound, and then use that information to find the empirical formula.
Answer:
The reactivity of the halogen group (group 17) decreases
from top to bottom within the group. Fluorine is the
most reactive halogen, while iodine is the least. Since
chlorine is above <em><u>bromine</u></em>, it is more reactive than
bromine and can replace it in a halogen replacement
reaction.
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2.5 % w/v ( that means we have 2.5 grams of solute in 100 mL <span>solution )
1.00 mL = 1000 mL therefore:
2.5 g ------------- 100 mL
?? --------------- 1000 mL
1000 x 2.5 / 100 => 25.0 g of NaCl</span>