Answer:
Zn(NO3)2 +Cu
Explanation:
Replacement reaction is a type of chemical reaction in which an element react with a compound and take the place of another element in that compound.
Zn is more reactive than Cu, therefore Zn replaces cu from CU(NO3)2 to form Zn(NO3)2 +Cu
The statements describing the southern economy in the antebellum era include 'it was primarily agricultural', 'it relied heavily on slave labor' and 'it produced mostly cotton and tobacco', It was a primary economy.
<h3>The southern economy in the antebellum era</h3>
In the USA, the economy of the antebellum era underwent an acceleration of economic growth.
This economy was characterized by the presence of slaves in the southern states and the family-farm of the free states.
In these southern states, the economy was directly tied to cotton and tobacco production.
Learn more about the antebellum era here:
brainly.com/question/8379433
The energy in the capacitor at the instant after the switch is closed, based on the potential across the capacitor is 31 mJ
<h3>What is the energy amount in the capacitor?</h3>
Because total energy is constant, this can be found by the formula:
= Initial energy in capacitor - Energy in inductor
The initial energy in the capacitor is:
= 0.5 x 4 x 10⁻⁶ x 200²
= 0.08J
The energy in the inductor is:
= 0.5 x 0.2 x 0.7²
= 0.049
The energy in the capacitor at that instant is:
= 0.08 - 0.049
=0.031 j
= 31 J
Find out more on the energy in the capacitor at brainly.com/question/27960614
#SPJ1
Answer:
4
Step-by-step explanation:
2 (6 x + 4) - 6 + 2 x = 3 (4 x + 3) + 1
12x + 8 - 6 + 2x = 12x + 9 + 1
12x + 2 + 2x = 12x + 10
2x + 2 = 10
2x = 10 - 2
2x = 8
x = 4
