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3 years ago

A _____ fireplace continues to radiate heat even after the fire is extinguished.

Chemistry

2 answers:

umka2103 [35]3 years ago

8 0

A Masonry fireplace continues to radiate heat even after the fir is extinguished.

andrey2020 [161]3 years ago

4 0

Answer:

The correct answer is Masonry.

Explanation:

Chimneys are built with masonry, materials such as bricks, cement blocks, natural stone or a combination of these.

The materials keep the smoke and hot gases rotating inside the chimney for longer, causing the material to absorb more heat. This means that after the fire is extinguished, the materials will continue to radiate heat to the environment.

Have a nice day!

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1 year ago

Cobalt (Co) has an atomic mass of 59 and an atomic number of 27. Which statement correctly describes an atom of cobalt?

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2 years ago

Matter in the ____state completely fills the volume of its container

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Answer:

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3 years ago

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The reactants of two chemical equations are listed. Equation 1: PbNO3 + Mg Equation 2: PbNO3 + KI Based on the type of reaction,

Vika [28.1K]

Answer:

Equation 2, because K being more reactive, exchanges position with Pb in PbNO3.

Explanation:

Hello there!

In this case, according to the given reactions, it is possible to realize that according to the reactivity series, since K is is group 1A of alkali metals, we infer it is by far more reactive than magnesium, for that reason last two choices can be easily discarded. Now, considering equation 2, it would be necessary to complete it to figure out the correct option:

$Pb(NO_3)_2 + KI \rightarrow PbI_2+KNO_3$

Whereas it can be seen that potassium exchanges position with Pb according to the double displacement reaction; therefore, the correct answer is "Equation 2, because K being more reactive, exchanges position with Pb in PbNO3".

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