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pickupchik [31]
3 years ago
5

Which metal is liquid at room temperature a) lead b) copper c) mercury d) sodium

Chemistry
2 answers:
Ahat [919]3 years ago
5 0

Answer:

 THE ANSWER IS MERCURY

Liula [17]3 years ago
5 0

Answer:

mercury

Explanation:

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kvasek [131]

election circles the nucleus

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At each step, a dichotomous key involves how many choices
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A 34.0 g piece of metal is heated to 92.0°C then placed in a beaker of water containing 22.0 g of water at 19.0°C. The temperatu
lapo4ka [179]

Answer:

0.1988 J/g°C

Explanation:

-Qmetal = Qwater

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Where;

Q = amount of heat

m = mass of substance

c = specific heat of substance

∆T = change in temperature

Hence;

-{mc∆T} of metal = {mc∆T} of water

From the information provided in this question, For water; m= 22.0g, ∆T = (24°C-19°C), c = 4.18J/g°C.

For metal; m= 34.0g, ∆T = (24°C-92°C), c = ?

Note that, the final temperature of water and the metal = 24°C

-{34 × c × (24°C-92°C)} = 22 × 4.18 × (24°C-19°C)

-{34 × c × (-68°C)} = 459.8

-{34 × c × -68} = 459.8

-{-2312c} = 459.8

+2312c = 459.8

c = 459.8/2312

c = 0.1988

The specific heat capacity of the metal is 0.1988 J/g°C

6 0
2 years ago
Why neutron doesn't contain any charge?​
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Answer:

Neutron does not contain any charge because the charge of the quarks that made up the neutron balances each other out.

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