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oksian1 [2.3K]
3 years ago
8

Table C: Known Specific Heat Values for Common

Chemistry
2 answers:
Maksim231197 [3]3 years ago
6 0

Answer:

Water

Explanation:

Specific heat capacity is defined as the amount of heat in joules needed to raise the temperature of 1 gram of a substance by 1 degree Celsius.

An insulator is a substance which conducts heat to a very poor extent.

Based on the two definitions, we may conclude that the greater the value of specific heat capacity, the harder it would be to heat up the material, that is, the more heat would be required.

Among all of the substances, notice that water has the greatest specific heat capacity, thus, it's the best insulator.

On the other hand, to make it clear, gold is the best conductor, as it has the lowest specific heat capacity.

dlinn [17]3 years ago
6 0

Answer:

Water Lead Wood

Explanation:

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I know that one of them is multiple choice but i’m not sure which one it is.
Evgen [1.6K]

Explanation:

1. neutrons

2. protons

3. protons and neutrons

4. neutrons

5. electrons

I'm not sure with 1 and 4, sorry :<

5 0
2 years ago
2Al(s) + Fe2O3(s) → Al2O3(s) + 2Fe(s) T
brilliants [131]

Answer:

ΔHrxn = [(1) -1675.5 ( kJ/mole) + (2) 0 ( kJ/mole)] - [(1) -824.3 ( kJ/mole) + (2) 0 ( kJ/mole)]

Explanation:

ΔHrxn = 2ΔHf (Al₂O₃)  - ΔHf (Fe₂O₃)

Remember that for pure elements in their standard state of temperature and pressure by definition their standard heats of formation are zero.

ΔHrxn = 2(-1675.7) - (-824.3) kJ/mol

ΔHrxn = 2527 kJ/mol

6 0
3 years ago
Help me please i need to sleep
lara [203]

Cloud is a gas.

ice is a solid.

snow is a solid.

steam is a gas.

rain is a liquid.

6 0
3 years ago
Describe the steps you would use to solve this problem. In a scale drawing of a dining room floor plan, 10mm equals 2 meters. If
horrorfan [7]

Answer:

666.95 $

Explanation:

If In a scale drawing of a dining room floor plan 10 mm = 2 meters

then 40 mm = (40 × 2) / 10 = 8 meters

and 32 mm = (32 × 2) / 10 = 6.4 meters

area of the dining room = 8 × 6.4 = 51.2 m²

1 square yard = 0.836 squared meters (m²) and it costs 10.89 $

Now we devise the following reasoning:

if        0.836 m² of flooring costs 10.89 $

then       51.2 m² of flooring costs X $

X = (51.2 × 10.89) / 0.836 = 666.95 $

4 0
3 years ago
In the equation F= M x A, what are the three variables? (choose 3) A Friction B Mass C Momentum D Force E Acceleration
joja [24]

<u>Answer:</u>

<em>B Mass </em>

<em>D Force </em>

<em>E Acceleration</em>

<u>Explanation:</u>

We know that

Force = mass × acceleration  

F = m × a

The unit of force is newtons

The unit of mass is kg  and

the unit of acceleration is ms^{-2}  

Force and acceleration are vector quantities and mass is a scalar quantity.

Newton's 2nd law of motion states that acceleration is directly proportional to net force and inversely proportional to mass.

he result is the equation

∑F = ma

5 0
3 years ago
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