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luda_lava [24]
3 years ago
8

Which metal most likely conducts electricity best? aluminum copper

Chemistry
2 answers:
Nonamiya [84]3 years ago
7 0

Explanation:

The most electrically conductive element is silver, followed by copper and gold.

erma4kov [3.2K]3 years ago
3 0
Uhh there is only 1 answer choice sooo
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A substance releases 2,192 J of heat, changing its temperature from 50 degrees C to 5 degrees C. The mass of the substance is 73
Gre4nikov [31]

The specific heat capacity of the given substance is -0.66 J/g°C.

<u>Explanation:</u>

The heat absorbed by any substance is the product of its mass, specific heat capacity and change in temperature.

q = m × c × ΔT

m is the mass in grams

q = amount of heat released or absorbed in J

ΔT = change in temperature in °C = 5 -50 = -45°C

c = specific heat capacity in J/g°C

c = $\frac{q}{m \times dT}

Plugin the values, we will get,

c = $\frac{2192 }{73.9 \times-45}

= -0.66 J/g°C

3 0
3 years ago
Fungal laccase, a blue protein found in wood-rotting fungi, is 0.390% cu by mass. if a fungal laccase molecule contains four cop
Leno4ka [110]
Molar mass of copper is 63.546

so malar mass of the laccase is

4* 63.546
-------------- = 651.754
0.39
7 0
3 years ago
Read 2 more answers
How does heat affect a water droplet's state of matter
Olegator [25]

Answer:

Explanation:

A substance with a high specific heat, such as the water in Figure 9, heats up and cools down slowly because a much larger quantity of heat is required to cause its temperature to rise or fall by the same amount. Matter can change from one state to another when thermal energy is absorbed or released.

7 0
3 years ago
Many of water's emergent properties, such as its cohesion, its high specific heat, and its high heat of vaporization, result fro
yarga [219]

Answer:

E) are electrically attracted to each other

Explanation:

Water molecule is polar because there is a difference in electronegativity values between hydrogen and oxygen. The hydrogen side of the molecule has a slight positive charge and the oxygen side is slightly negatively.  

Positively and negatively charged ends cause water molecules to attract one another and for this reason water shows the properties mentioned in the question: cohesion, high specific heat, and high heat of vaporization.

3 0
3 years ago
How many liters of H2O gas are produced when
anyanavicka [17]
1 mole C3H8 produces 4 moles H2O. So, first we convert 32 grams of propane to moles and then find moles of H2O. Then convert moles of H2O to grams of H2O
Moles of H2O produced = 32 g C3H8 x 1 mole/44 g x 4 moles H2O/mole C3H8 = 2.909 moles H2O
Grams H2O produced = 2.909 moles H2O x 18 g/mole = 52.36 g = 52 g H2O
8 0
2 years ago
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