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antiseptic1488 [7]
3 years ago
11

Ok please help which goes where and why??

Chemistry
2 answers:
Vesnalui [34]3 years ago
4 0

Answer:

well the first one is radiation the second one is conduction and the third one is convection. hope this helps! :)

Explanation:

zhenek [66]3 years ago
3 0
Radiation, conduction, and convection!
.
.
.
.

hope i helped! >
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Two hundred grams of a substance requires 9.76 kj of heat to raise its temperature from 25degrees C to 45 degrees C
Irina18 [472]
Heat can be calculated using the formula:

U = mCpΔT

where:

U = internal energy or heat
m = mass of substance
Cp = specific heat capacity of a substance (constant)
ΔT = change in temperature = (Tf - Ti)

In the problem, we are given all these terms except for the Cp, which can help identify what the substance is. This is because Cp is unique and constant for a particular substance.

9760 = 200(Cp)(45-25)
Cp = 2.44 J/g-°C

Now, look for a library or list of specific heat capacities. Look for a substance that has the closest value to what you calculated. Based on data, the substance used is ethyl alcohol which has a Cp of exactly 2.44 J/g-°C

You can use this as reference: http://www.engineeringtoolbox.com/specific-heat-capacity-d_391.html
6 0
3 years ago
*SCIENCE*
4vir4ik [10]

The correct answer is option A, that is, cooler and more rigid outer portion.

The lithosphere of the Earth comprises the crust and the uppermost mantle that forms the rigid and hard outer layer of the Earth. The lithosphere is sub-differentiated into tectonic plates. The topmost section of the lithosphere, which chemically reacts with the hydrosphere, atmosphere, and biosphere via the soil producing procedure is known as the pedosphere. The lithosphere is situated above the asthenosphere that is the hotter, weaker, and deeper component of the upper mantle.  


8 0
3 years ago
Given the standard heats of reaction
ANTONII [103]

Answer:

Explanation:

M(s) → M (g ) + 20.1 kJ --- ( 1 )

X₂ ( g ) → 2X (g ) + 327.3 kJ ---- ( 2 )

M( s) + 2 X₂(g) → M X₄ (g ) - 98.7 kJ ----- ( 3 )

( 3 ) - 2 x ( 2 ) - ( 1 )

M( s) + 2 X₂(g) - 2 X₂ ( g ) - M(s)  → M X₄ (g ) - 98.7 kJ -  2 [ 2X (g ) + 327.3 kJ ] - M (g ) - 20.1 kJ

0 = M X₄ (g ) - 4 X (g ) - M (g ) - 773.4 kJ

4 X (g ) +  M (g ) =  M X₄ (g ) - 773.4kJ

heat of formation of M X₄ (g ) is - 773.4 kJ

Bond energy of one M - X bond =  773.4 / 4 =  193.4 kJ / mole

6 0
3 years ago
Bisect tension can only be determined for a corner pole that has conductor spans of equal length on either side.
Olin [163]
A square mile = 27,878,400 square feet

A square mile also = 640 acres.

31,580/.
8 0
2 years ago
Relate dark matter to the development of the universe after the Big Bang. In 3-5 sentences, speculate on how the development of
Ilya [14]

Answer:

Dark matter also called baronic matter is the matter that makes up 27% of the universe.

In 1933 it was determined as that mass that cannot be seen, that is, the non-visible mass of outer space.

Dark matter also plays a central role in the formation of structures and the evolution of galaxies and has measurable effects on the anisotropy of cosmic microwave background radiation. The composition of this matter is unknown today.

The dark matter component has considerably more mass than the "visible" component of the Universe.

Explanation:

There are certain researchers who say that the appearance of dark matter was before the appearance of the big bang.

A relevant fact of this matter is that dark matter exerts gravity, and that gravity affects the movements of objects.

Despite the fact that nothing is known about its origin, astronomers have amply demonstrated that dark matter plays a determining role in the formation of galaxies and galactic clusters, which could not maintain their cohesion without its existence, but many doubt that it is the remainder / remnant or product of a big bang.

3 0
4 years ago
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