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PIT_PIT [208]
2 years ago
15

State the color of methyl orange in a sample of NaOH

Chemistry
1 answer:
devlian [24]2 years ago
5 0
I just need points I hate my sister
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A serving of Cheez-Its releases 130 kcal (1 kcal = 4.18 kJ) when digested by your body. If this same amount of energy were trans
Brut [27]

The final temperature : 78.925°C

<h3>Further explanation  </h3>

Heat can be calculated using the formula:  

Q = mc∆T  

Q = heat, J  

m = mass, g  

c = specific heat, joules / g ° C  

∆T = temperature difference, ° C / K  

Energy releases = 130 kcal = 130 x 4.18 kJ=543.4 kJ

The final temperature :

\tt \Delta T=\dfrac{Q}{m.c}\\\\\Delta T=\dfrac{543.4}{2.5\times 4.186~kJ/kg^oC}\\\\\Delta T=51.925^oC

Final temperature :

ΔT=final-initial

51.925°c=final-27°c

final = 51.925+27=78.925°C

7 0
2 years ago
Someone help me please i’ll give brainly
Elza [17]

Answer:

it is endothermic change ..........

8 0
3 years ago
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ILL GIVE BRAINLIEST! :).
fomenos
Option 2 is the correct answer
3 0
3 years ago
Describe the conversions from potential to kinetic energy, or kinetic to potential energy, as a toy car rolls down a ramp.
DiKsa [7]

Answer:

When an object falls, its gravitational potential energy is changed to kinetic energy. You can use this relationship to calculate the speed of the object's descent. Gravitational potential energy for a mass m at height h near the surface of the Earth is mgh more than the potential energy would be at height 0.

4 0
2 years ago
Who do you think should be responsible for cleaning up all the space junk orbiting the earth? Please I really really needed help
jeyben [28]

Answer:

Every spacefaring country.

Explanation:

Space junk is no one countries' responsibility, but the responsibility of every spacefaring country. The problem of managing space debris is both an international challenge and an opportunity to preserve the space environment for future space exploration missions.

Hope this helps

Taken from google :/

5 0
3 years ago
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