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Dahasolnce [82]
4 years ago
7

What is 8(6x+4)=-112

Chemistry
1 answer:
iris [78.8K]4 years ago
7 0

Answer:

x = -3

Explanation:

8(6x + 4) = -112

Divide both sides by 8.

6x + 4 = -14

Subtract 4 from both sides.

6x = -18

Divide both sides by 6.

x = -3

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The brightness of a star is most dependent on the star's...Explain why.
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I would say the answer is A - a stars mass

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Mass is the key factor in determining the lifespan of a main sequence star, its size and its luminosity ( brightness)




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8 0
3 years ago
The equation for the formation of ammonia from nitrogen and hydrogen is shown below. What is the formula for the equilibrium con
WINSTONCH [101]

First, make sure to balance your equation.

3H2(g) + N2(g) ⇄ 2NH3(g)

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Kc = [NH3]^2 / [H2]^3[N2]

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3 years ago
Does Graphene come from natural materials? Give an explanation
Gnoma [55]

Answer:

Actually graphene is not occurred in naturally.

Explanation:

graphene is a layer or a sheet which is extracted from graphite because graphite is layered material. most of the time famous scotch tape may produce graphene but you can't identify it without using electron microscope

7 0
4 years ago
Copper oxide, CuO, reacts with hydrochloric acid, HCI, to produce copper chloride, CuCL2 and water
spayn [35]

Explanation:

El óxido de cobre (II), también llamado antiguamente óxido cúprico ({\displaystyle {\ce {CuO}}}{\displaystyle {\ce {CuO}}}), es el óxido de cobre con mayor número de oxidación. Como mineral se conoce como tenorita.

{\displaystyle {\ce {2Cu + O2 = 2CuO}}}{\displaystyle {\ce {2Cu + O2 = 2CuO}}}

Aquí, se forma junto con algo de óxido de cobre (I) como un producto lateral, por lo que es mejor prepararlo por calentamiento de nitrato de cobre (II), hidróxido de cobre (II) o carbonato de cobre (II):

{\displaystyle {\ce {2 Cu(NO3)2 = 2 CuO + 4 NO2+ O2}}}{\displaystyle {\ce {2 Cu(NO3)2 = 2 CuO + 4 NO2+ O2}}}

{\displaystyle {\ce {Cu(OH)2 (s) = CuO (s) + H2O (l)}}}{\displaystyle {\ce {Cu(OH)2 (s) = CuO (s) + H2O (l)}}}

{\displaystyle {\ce {CuCO3 = CuO + CO2}}}{\displaystyle {\ce {CuCO3 = CuO + CO2}}}

El óxido de cobre (II) es un óxido básico, así se disuelve en ácidos minerales tales como el ácido clorhídrico, el ácido sulfúrico o el ácido nítrico para dar las correspondientes sales de cobre (II):

{\displaystyle {\ce {CuO + 2 HNO3 = Cu(NO3)2 + H2O}}}{\displaystyle {\ce {CuO + 2 HNO3 = Cu(NO3)2 + H2O}}}

{\displaystyle {\ce {CuO + 2 HCl =CuCl2 + H2O}}}{\displaystyle {\ce {CuO + 2 HCl =CuCl2 + H2O}}}

{\displaystyle {\ce {CuO + H2SO4 = CuSO4 + H2O}}}{\displaystyle {\ce {CuO + H2SO4 = CuSO4 + H2O}}}

Reacciona con álcali concentrado para formar las correspondientes sales cuprato.

{\displaystyle {\ce {3 XOH + CuO + H2O = X3[Cu(OH)6]}}}{\displaystyle {\ce {3 XOH + CuO + H2O = X3[Cu(OH)6]}}}

Puede reducirse a cobre metálico usando hidrógeno o monóxido de carbono:

{\displaystyle {\ce {CuO + H2 = Cu + H2O}}}{\displaystyle {\ce {CuO + H2 = Cu + H2O}}}

{\displaystyle {\ce {CuO + CO = Cu + CO2}}}{\displaystyle {\ce {CuO + CO = Cu + CO2}}}

6 0
3 years ago
A woman and her motorbike together have a mass of 220 kg. The bike accelerates at 5 m/s². What is the force from the motorbike's
Solnce55 [7]

Answer:

Explanation:

given mass=220 kg

acceleration=5 m/s2

F=ma

F=220*5

F=1100N

6 0
3 years ago
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