2 years ago

List three signs that could make you think that a chemical reaction was taking place.

Physics

1 answer:

algol132 years ago

5 0

1. Release of gases
2. Bubbling
3. And change in color- this one can also be for a physical change.

Hope this helps.

You might be interested in

How can i stop loveing you if yo keep saying the things i want to hear

xxTIMURxx [149]

Answer:

....

Explanation:

5 0

2 years ago

Read 2 more answers

A 4.60 gg coin is placed 19.0 cmcm from the center of a turntable. The coin has static and kinetic coefficients of friction with

Komok [63]

Answer:

62.64 RPM.

Explanation:

Given that

m= 4.6 g

r= 19 cm

μs = 0.820

μk = 0.440.

The angular speed of the turntable = ω rad/s

Condition just before the slipping starts

The maximum value of the static friction force =Centripetal force

$\mu_s\ m g=m\ \omega^2\ r\\ \omega^2=\dfrac{\mu_s\ m g}{m r}\\ \omega=\sqrt{\dfrac{\mu_s\ g}{ r}}\\ \omega=\sqrt{\dfrac{0.82\times 10}{ 0.19}}\ rad/s\\\omega= 6.56\ rad/s$

$\omega=\dfrac{2\pi N}{60}\\N=\dfrac{60\times \omega}{2\pi }\\N=\dfrac{60\times 6.56}{2\pi }\ RPM\\N=62.64\ RPM$

Therefore the speed in RPM will be 62.64 RPM.

5 0

2 years ago

How does the density of water change when: (a) it is heated from 0o

Radda [10]

Answer:

[b] it id heated from 4o

Explanation:

3 0

2 years ago

This illustration represents the compoundA)carbon oxide.B)carbon dioxide.C)carbon monoxide.EliminateD)monocarbon oxide.

pentagon [3]

B.) Carbon Dioxide because the carbon is surrounded by oxygen

3 0

2 years ago

Read 2 more answers

What color is reflected off of most plant leaves?

serg [7]

Green is reflected off of most plant leaves.

3 0

2 years ago

Read 2 more answers