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sergey [27]
3 years ago
6

One type of cold remedy is an effervescent tablet that breaks down in water. When the tablet is placed in water, it forms gas bu

bbles. In this example, the formation of a gas
A is a physical property.
B occurs when adding water to acid.
Cis a sign of a chemical change.
D occurs when the water boils.
Physics
2 answers:
oksano4ka [1.4K]3 years ago
7 0

Answer:

is a sign of a chemical change

Explanation:

The tablet reacts with the water to form carbon dioxide

wariber [46]3 years ago
6 0
I think it’s C is a sign of a chemical change.
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To solve this problem we will apply the concepts related to load balancing. We will begin by defining what charges are acting inside and which charges are placed outside.

PART A)

The charge of the conducting shell is distributed only on its external surface. The point charge induces a negative charge on the inner surface of the conducting shell:

Q_{int}=-Q1=-1.9*10^{-6} C. This is the total charge on the inner surface of the conducting shell.

PART B)

The positive charge (of the same value) on the external surface of the conducting shell is:

Q_{ext}=+Q_1=1.9*10^{-6} C

The driver's net load is distributed through its outer surface. When inducing the new load, the total external load will be given by,

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3 years ago
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F = ma

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AlladinOne [14]
Thermal Expansion.  best describes the increase in a materials volume 
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How do I differentiate between final and initial velocity in Physics?​
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Answer:

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Explanation:

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