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Pavel [41]
2 years ago
5

Question 21 of 25 Which of the following requires a chemical change?

Chemistry
2 answers:
Vesna [10]2 years ago
3 0

Answer:

c . Letting the fizz escape from a soda

lilavasa [31]2 years ago
3 0
Answer: a

because there is a fire, it is a chemical change causing the marshmallow to melt.
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Mrrafil [7]

Answer:

k = -0.006.

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Explanation:

Hola.

En este caso, considerando la gráfica mostrada en el archivo adjunto, podemos evidenciar que los datos dados se comportan de manera lineal, por lo que basado en la ecuación, T=k*h+To, podemos calcular la pendiente que basicamente es igual a k, tomando dos puntos en la gráfica:

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¡Saludos!

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