Answer:
1.668 S
Step-by-step explanation:
We are given that
Product
For first order reaction,
Rate constant=k=
Temperature=
We have to find the time taken by the reaction when concentration of A to decrease from 0.790 M to 0.230 M.
Substitute the values then we get
Hence, it would take 1.668 s for the concentration of A to decrease from 0.790 M to 0.230 M.
Answer:
x=0.369231
Step-by-step explanation:
0.9(5x+4)=5.7(2.5x)
Step 1: Simplify both sides of the equation.
0.9(5x+4)=5.7(2.5x)
(0.9)(5x)+(0.9)(4)=5.7(2.5x)(Distribute)
4.5x+3.6=14.25x
Step 2: Subtract 14.25x from both sides.
4.5x+3.6−14.25x=14.25x−14.25x
−9.75x+3.6=0
Step 3: Subtract 3.6 from both sides.
−9.75x+3.6−3.6=0−3.6
−9.75x=−3.6
Step 4: Divide both sides by -9.75.
−9.75x/ −9.75 = −3.6/ −9.75
x=0.369231
Answer:
i would say b but not sure
Step-by-step explanation:
hope this helps let me know if i got it wrong
That is where they intersect each other
it looks like at x=-1 and x=1
so -1 and 1 are the answers
first and 3rd option
Answer:
91
Step-by-step explanation:
We know that, the sum of the exterior angles of a polygon is 360 i.e., (x+3) + (2x+1) +(3x-1) = 360 i.e., x+2x+3x+3+1-4 = 360 i.e., 6x = 360 Therefore, x = 60 Now, x+3 = 60+3 =63 2x+1 = 2*60 +1 =120 + 1 = 121 3x-4 = 3*60 - 4 = 180 - 4 = 176 The exterior angles are 63, 121 and 176
