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irga5000 [103]
3 years ago
14

A cube of iron at 20C is placed in contact with a cube of copper at 60C. Which statement describes the initial flow of heat betw

een the cubes?
Chemistry
1 answer:
Anestetic [448]3 years ago
7 0

Answer:

the iron is more condensed then the copper more electricity

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How many grams of aluminum are required to give a total dislocation length of 3,000 miles (enough to stretch from New York City
Luba_88 [7]

Answer:

0.13 g

Explanation:

mass of aluminum required = ( Dislocation length) / ( Dislocation density) × (density of metal)

3000 miles to cm (  1 mile = 160934 cm) = 3000 miles ×  160934 cm / 1 mile = 482802000 cm

density of Aluminium = 2.7 g /cm³

dislocation density of aluminum = 10¹⁰ cm³

mass of aluminum required = (482802000 cm × 2.7 g/cm³) / 10¹⁰ cm³ = 0.13 g

5 0
3 years ago
Which statement summarizes the difference between mass and weight?
alexgriva [62]

Answer:

Mass is the amount of matter in an object.

Weight is how much an object weighs.

Hope this helps!

6 0
4 years ago
A chemist fills a reaction vessel with 9.47 atm nitrogen monoxide (NO) gas, 2.61 atm chlorine (C12) gas, and 8.64 atm nitrosyl c
lys-0071 [83]

Answer:

\Delta _rG=2832.2J/mol

Explanation:

Hello,

In this case, the Gibbs free energy of that reaction is computed by computing the equilibrium constant as:

K=\frac{p_{NOCl}^2}{p_{NO}^2p_{Cl_2}} =\frac{8.64^2}{9.47^2*2.61}=0.319

Hence the Gibbs free energy:

\Delta _rG=-RTlog(K)=-8.314\frac{J}{mol*K}*298.15K*ln(0.319)\\\\\Delta _rG=2832.2J/mol

Best regards.

3 0
3 years ago
The major part of a multicellular fungus is a twisted mass of hyphae that have grown together called a ?
Alekssandra [29.7K]
<span>The major part of a multicellular fungus is a twisted mass of hyphae that have grown together called a mycelium</span>
3 0
4 years ago
PLEASE ANSWER
lyudmila [28]

Answer:

4 hours

Explanation:

7 0
4 years ago
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