Heat _____.

Chemistry

2 answers:

makvit [3.9K]3 years ago

7 0

A:Is a measure of energy

Dmitry [639]3 years ago

5 0

Answer:

The answer is C, is the internal energy of matter.

Explanation:

All matter is made of atoms and molecules. These particles are always in motion, whether it is a slow vibration or a rapid movement. The internal motion of matter is a type of energy called heat. In other words, heat is the kinetic energy of matter.

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Write the electron configuration of the element that has Z = 3 *

Natasha2012 [34]

Answer:

1s²2s^1

Explanation:

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3 years ago

A lead–tin alloy of composition 30 wt% Sn–70 wt% Pb is slowly heated from a temperature of 150°C (300°F).(a) At what temperature

Novay_Z [31]

Answer:

a) 231.9 °C

b) 100% Sn

c) 327.5 °C

d) 100% Pb

Explanation:

This is a mixture of two solids with different fusion point:

$Tf_{Pb}=327.5 C$

$Tf_{Sn}=231.9 C$

<u>Given that Sn has a lower fusion temperature it will start to melt first at that temperature. </u>

So the first liquid phase forms at 231.9 °C and because Pb starts melting at a higher temperature, that phase's composition will be 100% Sn.

The mixture will be completely melted when you are a the higher melting temperature of all components (in this case Pb), so it will all in liquid phase at 327.5 °C.

At that temperature all Sn was already in liquid state and, therefore, the last solid's composition will be 100% Pb.

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4 years ago

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Anna71 [15]

Answer: All of them are true

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3 years ago

What is the mass of 2.0 moles of CO2

igor_vitrenko [27]

1 mol of CO2 is 44.01g/mol
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