Mass = mr x moles
Mr of CuCl2 = ( 63.5) + ( 35.5 x 2) = 134.5
2.5 = 134.5 x moles
2.5 / 134.5 = moles
Moles = 0.019 (2DP)
0.25g of Al
Mr of Al = 27
0.25 = 27 x moles
0.25/ 27 = 0.0093 moles (2sf)
Hope this helps :)
Answer:
36 loaves of bread and 18.48 ounces of mayonnaise are needed to make all of the sandwiches.
Explanation:
Number of slices of ham = 231
Given that each sandwich has 1 slice of ham.
Then 231 slices of ham will be in :

A single sandwich is made up of 2 bread slices , Then bread slices in 231 sandwiches will be :

Each bread slice is applied with 0.0500 ounce of mayonnaise.
Then 462 bread slices will have :

1 bread loaf = 13 bread slices
Then breads loves in 462 bread slices :

36 loaves of bread and 18.48 ounces of mayonnaise are needed to make all of the sandwiches.
Answer:
C4H9OH + 6O2 → 4CO2 + 5H2O
Explanation:
Answer:
Explanation:
ndicator species (IS) are animals, plants, or microorganism used to monitor changes in our environment. For example, they can tell us about the impact of pollution on an ecosystem, or how well an impaired environment is being managed or restored.