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1 year ago

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Which of the following statements about electrical conductors is true?

1 answer:

ioda1 year ago

6 0

Answer:

Which of the following statements about electrical conductors is true?

Right answer gets brainliest

a:They have low resistance.

b:They have high resistance.

c:They control the current.

d:They require high voltage.

I hope its help

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A piece of copper alloy with a mass of 85.0 g is heated from 30. °C to 45 °C. In the process, it absorbs 523 J of energy as heat

Ne4ueva [31]

Answer:

410.196 J/[kg*°C].

Explanation:

1) the equation of the energy is: E=c*m*(t₂-t₁), where E - energy (523 J), c - unknown specific heat of copper, m - mass of this copper [kg], t₂ - the final temperature, t₁ - initial temerature;

2) the specific heat of copper is:

$c=\frac{E}{m*(t_2-t_1)}; \ => \ c=\frac{523}{0.085*(45-30)}=\frac{523}{1.275}=410.196[\frac{J}{kg*C}].$

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<u>Answer: </u>The correct rate of the reaction is $Rate=k[a][b]^5[c]^6$

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Rate law of the reaction is the expression which expresses the rate of the reaction in the terms of the molar concentrations of the reactants with each term raised to the power of their respective stoichiometric coefficients in a balanced chemical equation.

For the given reaction:

$a+5b+6c\rightarrow 3d+3e$

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