Answer:
26.7 mL
Explanation:
M1*V1 = M2*V2
M1 = 12M
V1=?
M2 = 2.5M
V2=128 mL
12M*V1 = 2.5M*128 mL
V1 = 2.5*128/12 mL≈ 26.7 mL
I believe it is the very first one
hope it helps :)
Answer:
1.41 g of H₂O
Solution:
The equation for given reaction is as follow,
Cu₂O + H₂ → 2 Cu + H₂O
According to equation,
127 g (2 mole) Cu is produced along with = 18 g (1 mole) of H₂O
So,
10 g Cu produced will generate = X g of H₂O
Solving for X,
X = (18 g × 10 g) ÷ 127 g
X = 1.41 g of H₂O
Answer:
If this trend continues, the following week will be cooler, and a large amount of rain will fall.
Explanation:
Patterns and trends can often be found in data sets. During the week that Cho recorded the weather, the temperatures consistently dropped by one to four degrees each day. At the end of the week, the amount of precipitation increased daily.
Answer:
A) 12 mol H2O.
Explanation:
Hello,
In this case, for the given reaction:
We notice that oxygen is in a 7:6 molar relationship with water, for that reason, the resulting moles of water turn out:
Thus, the answer is A) 12 mol H2O.
Best regards.
