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dmitriy555 [2]
3 years ago
5

What is the missing length?

Mathematics
1 answer:
Kipish [7]3 years ago
4 0

Answer:

80

Step-by-step explanation:

89^2-39^2=6400, 6400=80^2

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Please Help !!!
solong [7]
Best Answer: 2 LiCl = 2 Li + Cl2
mass Li = 56.8 mL x 0.534 g/mL=30.3 g
moles Li = 30.3 g / 6.941 g/mol=4.37
the ratio between Li and LiCl is 2 : 2 ( or 1 : 1)

moles LiCl required = 4.37
mass LiCl = 4.37 mol x 42.394 g/mol=185.3 g


Cu + 2 AgNO3 = Cu/NO3)2 + 2 Ag
the ratio between Cu and AgNO3 is 1 : 2
moles AgNO3 required = 4.2 x 2 = 8.4 : but we have only 6.3 moles of AgNO3 so AgNO3 is the limiting reactant
moles Cu reacted = 6.3 / 2 = 3.15
moles Cu in excess = 4.2 - 3.15 =1.05

N2 + 3 H2 = 2 NH3
moles N2 = 42.5 g / 28.0134 g/mol=1.52
the ratio between N2 and H2 is 1 : 3
moles H2 required = 1.52 x 3 =4.56
actual moles H2 = 10.1 g / 2.016 g/mol= 5.00 so H2 is in excess and N2 is the limiting reactant
moles NH3 = 1.52 x 2 = 3.04
mass NH3 = 3.04 x 17.0337 g/mol=51.8 g
moles H2 in excess = 5.00 - 4.56 =0.44
mass H2 in excess = 0.44 mol x 2.016 g/mol=0.887 g
5 0
3 years ago
I need help please ..
koban [17]

A is 18

B is 162

C is 18

D is 162

4 0
3 years ago
ANSWER ASAPP!!!!!!FAST PLZZZZZZ!!!!!!!!!
faltersainse [42]
The answer to your question is c
5 0
3 years ago
Read 2 more answers
Complete function tables part 2<br><br>please help its the last one pleasee ​
Annette [7]

Answer:

e=3 d=2

e=7 d=3

e=11 d=4

e=15 d=5

Step-by-step explanation:

all you have to do is solve for the d by substituting the value of e into the equation.

5 0
2 years ago
HELP!!! i already found x, can someone please help me find y asap?
tamaranim1 [39]

Answer:

Y = 166

Step-by-step explanation:

The missing angle measure in the small trapezoid is 93 degrees. So to solve for “y” you have to make the expression equal to 93.

y - 73 = 93

y = 166

Hope this helps! Pls give brainliest!

8 0
2 years ago
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